0001564590-21-044920 | 10-K | XBRL Viewer

$ 396,289

$ 382,928

$ 418,785

Cost of revenue:

General and administrative

^[1]

236,782

233,207

256,134

Gross profit

159,507

149,721

162,651

Operating expenses:

Research and development

52,729

49,784

56,493

Selling and marketing

42,820

47,254

55,998

41,723

40,144

49,577

Total operating expenses

137,272

137,182

162,068

Income from operations

22,235

12,539

583

Income (loss) on equity method investment

872

(149)

Other expense, net

(27,666)

(6,700)

(14,927)

Income (loss) before provision for income taxes

(4,559)

5,690

(14,344)

Provision for income taxes

1,752

1,863

2,086

Net income (loss)

$ (6,311)

$ 3,827

$ (16,430)

Net income (loss) per share - basic

$ (0.07)

$ 0.04

$ (0.19)

Net income (loss) per share - diluted

$ (0.07)

$ 0.04

$ (0.19)

Weighted average common shares used in computing net income (loss) per share:

Basic

92,031

89,874

87,465

Diluted

92,031

90,623

87,465

Net income (loss)

$ (6,311)

$ 3,827

$ (16,430)

Foreign currency translation adjustment

1,705

(238)

(247)

Change in defined benefit pension obligation

872

(236)

(856)

Comprehensive income (loss)

(3,734)

3,353

(17,533)

Products

Net revenue:

^[2]

176,647

167,302

196,665

Cost of revenue:

102,100

95,882

116,711

Services

Net revenue:

^[3]

219,642

215,626

222,120

Cost of revenue:

$ 134,682

$ 137,325

$ 139,423

[1]	Includes cost of revenue from sales to the China joint venture, an equity method investment of $13,310 for the year ended June 30, 2021, $13,174 for the years ended June 30, 2020 and $0 for the year ended June 30, 2019, respectively. See Note 13.
[2]	Includes sales to the China joint venture, an equity method investment of $12,033 for the year ended June 30, 2021, $11,202 for the years ended June 30, 2020 and $0 for the year ended June 30, 2019, respectively. See Note 13.
[3]	Includes sales to the China joint venture, an equity method investment of $12,360 for the year ended June 30, 2021, $7,851 for the years ended June 30, 2020 and $0 for the year ended June 30, 2019, respectively. See Note 13.

Consolidated Statements of Operations and Comprehensive Income (Loss) (Parenthetical) - USD ($)
$ in Thousands

12 Months Ended

Jun. 30, 2021

Jun. 30, 2020

Jun. 30, 2019

$ 396,289

$ 382,928

$ 418,785

^[1]

236,782

233,207

256,134

Products

^[2]

176,647

167,302

196,665

102,100

95,882

116,711

Services

^[3]

219,642

215,626

222,120

Revenue from Joint Venture

134,682

137,325

139,423

Revenue from Joint Venture | Products

13,310

13,174

Revenue from Joint Venture | Services

12,033

11,202

$ 12,360

$ 7,851

$ 0

[1]	Includes cost of revenue from sales to the China joint venture, an equity method investment of $13,310 for the year ended June 30, 2021, $13,174 for the years ended June 30, 2020 and $0 for the year ended June 30, 2019, respectively. See Note 13.
[2]	Includes sales to the China joint venture, an equity method investment of $12,033 for the year ended June 30, 2021, $11,202 for the years ended June 30, 2020 and $0 for the year ended June 30, 2019, respectively. See Note 13.
[3]	Includes sales to the China joint venture, an equity method investment of $12,360 for the year ended June 30, 2021, $7,851 for the years ended June 30, 2020 and $0 for the year ended June 30, 2019, respectively. See Note 13.

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Organization Consolidation And Presentation Of Financial Statements [Abstract]

Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Balance at Jun. 30, 2018	$ 48,632	$ 86	$ 521,738	$ 1,093	$ (474,285)
Balance (in shares) at Jun. 30, 2018		86,129,256
Exercise of options, net	489		489
Exercise of options, net (in shares)		114,932
Issuance of restricted stock		$ 2	(2)
Issuance of restricted stock (in shares)		1,491,379
Issuance of common stock under employee stock purchase plan	3,022	$ 1	3,021
Issuance of common stock under employee stock purchase plan (in shares)		911,741
Share-based compensation	10,086		10,086
Tax withholding upon vesting of restricted stock units (in shares)		(125,797)
Adoption of new revenue recognition standard	5,175				5,175
Net income (loss)	(16,430)				(16,430)
Cumulative translation adjustment	(247)			(247)
Change in defined benefit pension obligation	(856)			(856)
Balance at Jun. 30, 2019	49,871	$ 89	535,332	(10)	(485,540)
Balance (in shares) at Jun. 30, 2019		88,521,511
Issuance of restricted stock	(206)	$ 1	(207)
Issuance of restricted stock (in shares)		1,579,037
Issuance of common stock under employee stock purchase plan	2,451	$ 1	2,450
Issuance of common stock under employee stock purchase plan (in shares)		1,136,096
Share-based compensation	8,166		8,166
Tax withholding upon vesting of restricted stock units (in shares)		(58,536)
Net income (loss)	3,827				3,827
Cumulative translation adjustment	(238)			(238)
Change in defined benefit pension obligation	(236)			(236)
Balance at Jun. 30, 2020	$ 63,635	$ 91	545,741	(484)	(481,713)
Balance (in shares) at Jun. 30, 2020	91,178,108	91,178,108
Net income (loss)	$ (152)
Balance at Jun. 30, 2020	$ 63,635	$ 91	545,741	(484)	(481,713)
Balance (in shares) at Jun. 30, 2020	91,178,108	91,178,108
Exercise of options, net	$ 855		855
Exercise of options, net (in shares)		209,008
Issuance of restricted stock	2	$ 2
Issuance of restricted stock (in shares)		1,452,618
Issuance of common stock under employee stock purchase plan	2,174	$ 1	2,173
Issuance of common stock under employee stock purchase plan (in shares)		1,168,220
Repurchase of common stock	(14,081)	$ (3)	(14,078)
Repurchase of common stock (in shares)		(3,108,369)
Share-based compensation	9,385		9,385
Tax withholding upon vesting of restricted stock units (in shares)		(77,924)
Extinguishment of allocated cost related to convertible note exchange	(14,562)		(14,562)
Bifurcation of conversion option upon issuance of convertible notes	25,166		25,166
Net income (loss)	(6,311)				(6,311)
Cumulative translation adjustment	1,705			1,705
Change in defined benefit pension obligation	872			872
Balance at Jun. 30, 2021	$ 68,840	$ 91	554,680	2,093	(488,024)
Balance (in shares) at Jun. 30, 2021	90,821,661	90,821,661
Net income (loss)	$ (11,092)
Balance at Jun. 30, 2021	$ 68,840	$ 91	$ 554,680	$ 2,093	$ (488,024)
Balance (in shares) at Jun. 30, 2021	90,821,661	90,821,661

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities
Net income (loss)	$ (6,311)	$ 3,827	$ (16,430)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	6,389	7,541	10,491
Share-based compensation	9,332	8,152	10,601
Amortization of debt issuance costs	1,356	1,348	1,528
Accretion of interest on debt	4,887	4,168	3,371
Provision for credit losses	133	1,797	3,681
Non-cash revenue transactions related to joint venture	(1,365)
Provision for write-down of inventories	6,914	4,184	2,340
Loss on disposal of property and equipment	106	9	2,588
(Income) loss on equity method investment	(872)	149
Release (deferral) of equity method investment intra-entity profit on sales	310	1,847
Loss on extinguishment of debt	9,948
Gain on termination of lease obligation			(1,007)
Gain on contribution to joint venture		(12,964)
Provision (benefit) for deferred income taxes	(114)	353	(86)
Changes in assets and liabilities:
Accounts receivable, short and long-term	5,235	19,030	(46,165)
Inventories	1,688	(23,178)	(14,165)
Prepaid expenses and other assets	(951)	4,403	(13,049)
Deferred cost of revenue, short and long-term	(296)	(2,441)	531
Accounts payable	(3,978)	(6,770)	9,456
Operating lease liabilities, net	(663)	(235)
Accrued liabilities	8,089	(16,595)	10,857
Customer advances	2,237	2,159	(2,549)
Deferred revenues, short and long-term	(3,562)	1,747	8,366
Net cash provided by (used in) operating activities	38,512	(1,469)	(29,641)
Cash flows from investing activities
Purchases of property and equipment, net	(2,320)	(3,558)	(4,311)
Purchase of intangible assets		(170)
Additional investments in joint venture	(79)
Net cash (used in) investing activities	(2,399)	(3,728)	(4,311)
Cash flows from financing activities
Proceeds from employee stock plans	2,175	2,450	3,927
Proceeds from exercise of options	855
Taxes paid related to net share settlement of equity awards	(343)	(207)
Convertible senior notes exchange and issued, net of issuance costs	(142)
Paydown and Repayment of Prior Term Loan and Prior Revolving Credit Facility, net	(115,924)
Proceeds from New debt, net of costs	103,654	24,716	19,968
Borrowings (repayments) under the New Revolving Credit Facility, net	(5,000)	(263)	4,578
Stock repurchase	(14,080)
Net cash provided by (used in) financing activities	(28,805)	26,696	28,473
Effect of exchange rate changes on cash, cash equivalents and restricted cash	982	234	124
Net increase (decrease) in cash, cash equivalents and restricted cash	8,290	21,733	(5,355)
Cash, cash equivalents and restricted cash at beginning of period	109,911	88,178	93,533
Cash, cash equivalents and restricted cash at end of period	118,201	109,911	88,178
Supplemental Disclosure of Cash Flow Information
Cash paid for income taxes	1,873	2,806	2,191
Cash paid for interest	11,892	12,332	9,761
Supplemental non-cash disclosure:
Non-cash effect of pension settlement accounting		178
Prior convertible note exchanged	(82,135)
New convertible note exchanged	97,148
Unpaid purchase of property and equipment at end of year	555	226	235
Transfers from inventory to property and equipment	$ 564	2,594	$ 1,170
Equity method investment, in exchange for non-cash contributions of assets to China Joint Venture (including gain of $12,964)		$ 15,925

Consolidated Statements of Cash Flows (Parenthetical) $ in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($)
Statement Of Cash Flows [Abstract]
Gain on contribution to equity method investment	$ 12,964

The Company and its Significant Accounting Policies

12 Months Ended

Jun. 30, 2021

The Company and its Significant Accounting Policies

Note 1. The Company and its Significant Accounting Policies

The Company

Accuray Incorporated (together with its subsidiaries, the “Company” or “Accuray”) designs, develops and sells advanced radiosurgery and radiation therapy systems for the treatment of tumors throughout the body. The Company is incorporated in Delaware and has its principal place of business in Sunnyvale, California. The Company has primary offices in the United States, Switzerland, China, Hong Kong and Japan and conducts its business worldwide.

Basis of Presentation and Principles of Consolidation

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant inter-company transactions and balances have been eliminated in consolidation.

The accompanying consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”), pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”).

Risks and Uncertainties

The Company is subject to risks and uncertainties as a result of a novel strain of coronavirus, severe acute respiratory syndrome coronavirus 2, or SARS-CoV-2, which causes coronavirus disease 2019 (“COVID-19”) and has resulted in a worldwide pandemic. The extent of the impact of the COVID-19 pandemic on the Company's business is highly uncertain and difficult to predict, as the effects of and response to the pandemic are rapidly evolving and new information is regularly coming to light. The Company's customers are diverting resources to treat COVID-19 patients and deferring non-urgent and elective procedures, both of which are likely to impact customers' ability to meet their other financial obligations, including to the Company. Some customers, which include hospitals, major academic medical centers, and other related entities, have incurred significant losses during the COVID-19 pandemic due to reduced patient volume. Furthermore, a global economic slowdown due to disruptions caused by the COVID-19 pandemic may result in an incremental adverse impact on revenue, net income and cash flow and may require significant additional expenditures or cost-cutting to mitigate such impacts. Policymakers around the globe have responded with fiscal policy actions to support the healthcare industry and economy as a whole. The magnitude and overall effectiveness of these actions remain uncertain.

The Company’s financial results have also been affected by the COVID-19 pandemic in various ways. The COVID-19 pandemic is adversely impacting the pace at which the Company’s backlog converts to revenue in the near-term. This is primarily the result of delays in the timing of deliveries and installations in fiscal 2020 and 2021 caused by the COVID-19 pandemic. The Company expects that such delays in deliveries and installations may continue through the end of fiscal 2022, which could have a negative impact on revenue during such period. The Company has experienced disruptions in its sales and revenue cycle as well as delays in customer payments, delays in planned installations and service agreements as a result of the effect of the COVID-19 pandemic on the Company’s customers as well as restrictions imposed on travel.

The Company also received requests from a few customers to extend payment terms or temporarily suspend service and corresponding payment obligations. While the Company has only received a small number of requests thus far, there can be no guarantee that more customers will not ask for the same in the future. As a result, the Company is carefully monitoring the pandemic and the potential length and depth of the resulting economic impact on our financial condition and results of operations. There remain uncertainties around the spread of COVID-19, how long the pandemic will last and the timing and extent of an economic recovery, and as a result, the related financial impact cannot be reasonably estimated at this time, although the impacts are expected to continue and may significantly affect the Company’s business.

The Company continues to critically review its liquidity and anticipated capital requirements in light of the significant uncertainty created by the COVID-19 pandemic. Based on the Company’s cash and cash equivalents balance, available debt facilities, current business plan and revenue prospects, the Company believes that it will have sufficient cash resources and anticipated cash flows to fund its operations for at least the next 12 months. However, the Company is unable to predict with certainty the impact of the COVID-19 pandemic on its ability to maintain compliance with the debt covenants contained in the credit agreement related to its New Credit Facility (as such terms are defined in Note 10 below), including financial covenants regarding the consolidated fixed charge coverage ratio and consolidated senior net leverage ratio. The Company was in compliance with such covenants at June 30, 2021. Failure to meet the covenant requirements in the future could cause the Company to be in default and the maturity of the related debt could be accelerated and become immediately payable. This may require the Company to obtain waivers or amendments to the credit agreement in order to maintain compliance and there can be no certainty that any such waiver or amendment will be available, or what the cost of such waiver or amendment, if obtained, would be. If the Company is unable to obtain necessary waivers or amendment and the debt under such credit facility is accelerated, the Company would be required to obtain replacement financing at prevailing market rates, which may not be favorable to the Company. There is no guarantee that the Company would be able to satisfy its obligations if any of its indebtedness is accelerated.

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses, and related disclosures at the date of the financial statements. The Company assessed certain accounting matters that generally require consideration of forecasted financial information in context with the information reasonably available to the Company and the unknown future impacts of the COVID-19 pandemic. Key estimates and assumptions made by the Company relate to revenue recognition and the assessment of stand-alone selling price (“SSP”), assessment of recoverability of goodwill and intangible assets, valuation of our equity method investment in the JV, valuation of inventories, share based compensation expense, convertible notes, income taxes, allowance for doubtful accounts and loss contingencies. Actual results could differ materially from those estimates.

Foreign Currency

The Company’s international subsidiaries use their local currencies as their functional currencies. For those subsidiaries, assets and liabilities are translated at exchange rates in effect at the balance sheet date and income and expense accounts at the average exchange rate. Resulting translation adjustments are excluded from the determination of net loss and are recorded in accumulated other comprehensive loss as a separate component of stockholders’ equity. Net foreign currency exchange transaction gains or losses are included as a component of other expense, net, in the Company’s consolidated statements of operations and comprehensive income (loss).

Fair Value Measurements

The carrying values of the Company’s financial instruments including cash equivalents, restricted cash, accounts receivable and accounts payable are approximately equal to their respective fair values due to the relatively short‑term nature of these instruments. Also refer to Note 8, Fair Value Measurements, for further details.

Cash and Cash Equivalents

The Company considers currency on hand, demand deposits, time deposits, and all highly liquid investments with an original maturity of three months or less at the date of purchase to be cash and cash equivalents. Cash and cash equivalents are held in various financial institutions in the United States and internationally.

Concentration of Credit Risk and Other Risks and Uncertainties

The Company’s cash and cash equivalents are mainly deposited with several major financial institutions. At times, deposits in these institutions exceed the amount of insurance provided on such deposits. The Company has not experienced any losses in such accounts and believes that it is not exposed to any significant risk on these balances.

The Company had one customer that represented 10% or more of total net revenue for the year ended June 30, 2021 and no customer that represented 10% or more of total net revenue for the years end June 30, 2020 and 2019. The Company had two customers as of June 30, 2021 and one customer as of June 30, 2020, respectively that each accounted for more than 10% of accounts receivable, net.

The Company performs ongoing credit evaluations of its customers and maintains reserves for potential credit losses. Accounts receivable are deemed past due in accordance with the contractual terms of the agreement. Accounts are charged against the allowance for credit losses once collection efforts are unsuccessful. Historically, such losses have been within management’s expectations.

Single‑source suppliers presently provide the Company with several components. In most cases, if a supplier was unable to deliver these components, the Company believes that it would be able to find other sources for these components subject to any regulatory qualifications, if required.

Restricted Cash

Restricted cash primarily consists of cash that is temporarily held in bank accounts which are under the control of the lender to the New Credit Facility, certificates of deposit held as guarantees in connection with customer contracts and corporate leases as well as funds held as guarantees for Value‑Added Tax (VAT) obligations in a foreign jurisdiction.

Inventories

Inventories are stated at the lower of cost (on a first‑in, first‑out basis) or net realizable value. Excess and obsolete inventories are written down based on historical sales and forecasted demand, as judged by management.

Revenue Recognition

The Company’s revenue consists of product revenue resulting from the sale of systems, system upgrades and service revenue. The Company accounts for a contract with a customer when there is a legally enforceable contract between the Company and its customer, the rights of the parties are identified, the contract has commercial substance, and collectability of the contract consideration is probable. The Company’s revenues are measured based on the consideration specified in the contract with each customer, net of any discounts and taxes collected from customers that are remitted to government authorities.

The Company’s revenue is primarily derived from sales of CyberKnife and TomoTherapy platforms and services, which include post-contract customer support (“PCS”), installation services, training and other professional services.

The majority of the Company's revenue arrangements consist of multiple performance obligations, which can include system, upgrades, installation, training, services, construction, and consumables. For bundled arrangements, the Company accounts for individual products and services separately if a product or service is separately identifiable from other items in the bundled package and if a customer can benefit from it on its own or with other resources that are readily available to the customer.

The Company’s products are generally sold without a right of return, and the Company’s contracts generally provide a fixed transaction price. The Company may offer incentives in the form of discounts, including volume system discounts, which are included in the contract and used to calculate the final fixed price of the arrangement. These discounts may pertain to all performance obligations in a specific contract or may be allocated to a specific performance obligation. The Company estimates a financing component in transactions with payment terms extending beyond one year. This financing component is recognized as interest income over time. The Company applies the practical expedient to not adjust for a significant financing component if the gap between payment and delivery was expected, at the contract inception, to be less than one year.

The Company offers customers the opportunity to trade in their older systems for credit towards the purchase of a new system. The Company generally does not provide specific trade-in prices or upgrade rights at the time of purchase of the original system. Trade-in or upgrade transactions are based on the then fair value of the system and are separately negotiated taking into consideration circumstances existing at the time of the trade-in or upgrade. Accordingly, trade-ins and upgrades are not considered separate performance obligations in system sales agreements. When systems are traded in, historically, the Company was able to recondition (re-new) the traded-in systems and resell them. In such transactions, the Company would estimate the stand-alone selling price of the traded-in system and include such amount as additional transaction price in the new bundled system sale. In fiscal year 2020, however, demand for reconditioned systems has decreased, and no fair value has been assigned to any of the systems that were traded-in during fiscal year 2021. These trade-in systems may be used for spare parts harvesting in certain cases. Such spare parts generally require reconditioning.

The SSP of performance obligations is determined based on observable prices at which the Company separately sells the products and services. If the SSP is not directly observable, then the Company will estimate the SSP considering market conditions, entity-specific factors, and information about the customer or class of customer that is reasonably available. The SSP is generally assessed as a percentage of the list price. The contract consideration allocation is based on the SSP at contract inception. The consideration (net of any discounts) is allocated among separate products and services in a bundle based on their relative SSPs. For contract modifications that add additional goods or services or change pricing, the most recent SSP is used for reallocation to the remaining performance obligations.

The Company recognizes revenue for certain performance obligations at the point in time when control is transferred, such as delivery of products and upgrades. Service revenue is recognized over the term of the service period as the customer benefits from the services throughout the service period. Revenue related to services performed on a time-and-materials basis is recognized when performed. Service contracts recognized over time comprise a single stand-ready performance obligation satisfied over time as our customers simultaneously receive and consume benefits from the Company's performance. This performance obligation constitutes a series of services that are substantially the same and provided over time using the same measure of progress. Service contract revenue is recognized over the term of the service period as the customer benefits from the services throughout the service period. Revenues derived from these arrangements are recognized over time using an output method based upon the passage of time as this provides a faithful depiction of the pattern of transfer of control.

The Company recognizes an asset for the incremental costs of obtaining a contract with a customer when the Company expects to generate future economic benefits from the related revenue-generating contracts. The Company capitalizes incremental contract acquisition costs, and amortizes such costs over a five year period, the period which the Company expects to benefit, based on historical service renewal rates, and expectations of future customer renewals. Most of the Company’s contract costs are associated with its internal sales force compensation program and a portion of its employee bonus program. The Company capitalizes and amortizes the incremental costs of obtaining a contract, primarily related to certain bonuses and sales commissions. The capitalized bonuses and sales commissions are amortized over a period of five years commencing upon the initial transfer of control of the system to the customer. The pattern of amortization is commensurate with the pattern of transfer of control of the performance obligations to the customer. The amortization of these contract assets is included in cost of sales, research and development, sales and marketing, and general and administrative expenses based on department headcount allocations in the consolidated statements of operations. The Company elected to use the practical expedient and expense as incurred commissions related to service renewals and upgrades because the amortization period would be less than a year.

The Company invoices its customers based on the billing schedules in its sales arrangements. Payment terms vary from 30 to 90 days, or longer, from the date of invoice. Contract assets for the periods presented primarily represent the difference between the revenue that was recognized based on the relative standalone selling price of the related performance obligations satisfied and the contractual billing terms. Deferred revenue for periods presented primarily relates to service contracts where the service fees are billed up-front, generally quarterly or annually, prior to services being performed. The associated deferred revenue is generally recognized over the term of the service period. The Company did not have any significant impairment losses on its contract assets for any period presented.

Deferred Revenue

Deferred revenue primarily consists of unfulfilled obligations from open contracts for which performance has already started including short-shipped items, deferred warranty, training, maintenance services and other unperformed or incomplete performance obligations. Service contracts for maintenance services, in general, are considered month-to-month contracts. Deferred revenue includes deferred warranty expected to be recognized over the remaining warranty period for system already installed.

Customer Advances

Customer advances represent payments made by customers in advance of product shipment. In general, customer advances are required for a contract to be recognized in our backlog.

Property and Equipment

Property and equipment are stated at cost and are depreciated using the straight‑line method over the estimated useful lives of the related assets. Leasehold improvements are depreciated on a straight‑line basis over the remaining term of the lease or the estimated useful life of the asset, whichever is shorter. Machinery and equipment are depreciated over five years. Furniture and fixtures are depreciated over four years. Computer and office equipment and computer software are depreciated over three years. Repairs and maintenance costs, which are not considered improvements and do not extend the useful life of the property and equipment, are expensed as incurred.

Software Capitalization Costs

Costs for the development of new software products and substantial enhancements to existing software products are expensed as incurred until technological feasibility has been established, at which time any additional costs would be capitalized. No costs associated with the development of software have been capitalized as the Company believes its current software development process is essentially completed concurrent with the establishment of technological feasibility.

Impairment of Long‑Lived Assets

The Company reviews long‑lived assets, including intangible assets, equity method investment in the JV, property and equipment, for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable using pretax undiscounted cash flows. Impairment, if any, is measured as the amount by which the carrying value of a long‑lived asset exceeds its fair value.

Goodwill and Purchased Intangible Assets

Goodwill is not amortized, but is evaluated for impairment on an annual basis and when impairment indicators are present. The Company has assessed that it has one operating segment and one reporting unit, and the consolidated net assets, including existing goodwill and other intangible assets, are considered to be the carrying value of the reporting unit. The Company estimates the fair value of the reporting unit based on the Company’s closing stock price on the trading day closest to the annual review date multiplied by the outstanding shares on that date. If the carrying value of the reporting unit is in excess of its fair value, an impairment may exist, and the Company must perform the second step of the analysis, in which the estimated fair value of the goodwill is compared to its carrying value to determine the impairment charge, if any. If the estimated fair value of the reporting unit exceeds the carrying value of the reporting unit, goodwill is not impaired and no further analysis is required. The Company adopted the new accounting guidance that simplifies the testing for goodwill impairment in the first quarter of fiscal 2019. There was no impairment of goodwill identified in the fiscal years ended June 30, 2021, 2020 and 2019.

Purchased intangible assets other than goodwill, including developed technology are amortized on a straight‑line basis over their estimated useful lives unless their lives are determined to be indefinite. Purchased intangible assets are carried at cost, less accumulated amortization. Amortization is computed over the estimated useful lives of the respective assets which range from approximately one to seven years.

Shipping and Handling

The Company’s billings for shipping and handling for product shipments to customers are included in cost of products. Shipping and handling costs incurred for inventory purchases are capitalized in inventory and expensed in cost of products.

Advertising Expenses

The Company expenses the costs of advertising and promoting its products and services as incurred. Advertising expenses were approximately $0.2 million, $0.2 million and $0.5 million for the years ended June 30, 2021, 2020 and 2019, respectively, and are included in selling and marketing expense in the consolidated statements of operations.

Research and Development Costs

Costs related to research, design and development of products are charged to research and development expense as incurred. These costs include direct compensation, benefits, and other headcount related costs for research and development personnel; costs for materials used in research and development activities; costs for outside services and allocated portions of facilities and other corporate costs. The Company has entered into research and clinical study arrangements with selected hospitals, cancer treatment centers, academic institutions and research institutions worldwide. These agreements support the Company’s internal research and development capabilities.

Share‑Based Compensation

The Company issues stock‑based compensation awards to employees and directors in the form of stock options, restricted stock units (RSUs), performance units (PSUs), market stock units (MSUs) and employee stock purchase plan (ESPP) awards (collectively, awards). The exercise price of stock options granted is equal to the fair market value of the Company’s common stock on the date of grant.

The Company measures and recognizes compensation expense for all stock‑based awards based on the awards’ fair value. Share‑based compensation for RSUs and PSUs is measured based on the value of the Company’s common stock on the grant date. The Company uses the Monte Carlo simulation model to estimate the grant date fair value of MSUs. Share‑based compensation for employee stock options and ESPP awards are measured on the date of grant using a Black‑Scholes option pricing model.

Awards vest either on a vesting schedule or in a lump sum. The Company determines the fair value of each award as a single award and recognizes the expense on a straight‑line basis over the service period of the award, which is generally the vesting period. Stock options expire ten years from the date of grant.

Share‑based compensation expense for stock options, RSUs, PSUs and the ESPP awards is based on awards ultimately expected to vest, and the expense is recorded net of estimated forfeitures. With respect to Performance Stock Units that are based on our corporate financial performance targets, or PSUs, the number of PSUs that will ultimately be awarded is contingent on the Company’s actual level of achievement compared to the corporate financial target performance targets. The Company recognizes expense for MSUs net of estimated forfeitures and does not adjust the expense for subsequent changes in the expected outcome of the market‑based vesting conditions.

Loss Contingencies

The Company is involved in various lawsuits, claims and proceedings that arise in the ordinary course of business. The Company records a provision for a liability when it believes that it is both probable that a liability has been incurred and the amount can be reasonably estimated. Significant judgment is required to determine both

probability and the estimated amount. The Company reviews these provisions quarterly and adjusts these provisions to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and updated information.

Net Income (Loss) Per Common Share

Basic and diluted net income (loss) per share is computed by dividing net income (loss) attributable to stockholders by the weighted average number of common shares outstanding during the year. Potentially dilutive outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share for loss periods presented because including them would have been antidilutive.

A reconciliation of the numerator and denominator used in the calculation of basic and diluted net income (loss) per share attributable to stockholders follows (in thousands):

	Years Ended June 30,
	2021			2020		2019
Numerator:
Net income (loss) used to compute basic and diluted loss per share	$	(6,311	)	$	3,827	$	(16,430	)
Denominator:
Weighted average shares used to compute basic income (loss) per share		92,031			89,874		87,465
Weighted average shares used to compute diluted income (loss) per share		92,031			90,623		87,465

The potentially dilutive shares of the Company’s common stock resulting from the assumed exercise of outstanding stock options, the vesting of Restricted Stock Units (RSU), Market Stock Units (MSU) and Performance Stock Units (PSU), and the purchase of shares under the Employee Stock Purchase Program (ESPP), as determined under the treasury stock method, are excluded from the computation of diluted net income (loss) per share when their effect would have been anti‑dilutive. Additionally, the outstanding 3.75% Convertible Notes due July 2022 (the “3.75% Convertible Notes due 2022”) and the 3.75% Convertible Notes due June 2026 (the “3.75% Convertible Notes due 2026” and together with the 3.75% Convertible Notes due 2022, the “Notes”) are included in the calculation of diluted net income per share only if their inclusion is dilutive for periods during which the notes were outstanding.

The following table sets forth all potentially dilutive securities excluded from the computation in the table above when their effect would have been anti‑dilutive (in thousands):

	As of June 30,
	2021		2020		2019
Stock options		7,030		5,956		5,220
RSUs, PSUs and MSUs		3,198		3,761		3,725
		10,228		9,717		8,945

Outstanding Convertible Notes—Diluted Share Impact

Due to the optional cash settlement feature and management’s intent to settle the principal amount thereof in cash, the shares of common stock issuable upon conversion of the outstanding principal amount of the 3.75% Convertible Notes due 2022 and 3.75% Convertible Notes due 2026 outstanding as of June 30, 2021, totaling approximately 0.5 million shares and 17.1 million shares of the Company’s common stock, respectively, as of June 30, 2021, the effect of adding the shares were antidilutive and were not included in the basic and diluted net loss per common share table above. The shares of common stock issuable upon conversion of the outstanding principal amount of the 3.75% Convertible Notes due 2022 outstanding as of June 30, 2020 and 2019, totaled approximately 14.9 million shares of the Company’s common stock and the effect of adding the shares were antidilutive and were not included in the basic and diluted net income (loss) per common share table above.

Leases

On July 1, 2019, the Company adopted Accounting Standards Codification Topic 842, “Leases” (“ASC 842”) to replace the existing lease accounting guidance. This pronouncement is intended to provide enhanced transparency and comparability by requiring lessees to record right-of-use assets and corresponding lease liabilities on the balance sheet for most leases. Expenses associated with leases will continue to be recognized consistent with previous accounting guidance. The Company adopted ASC 842 utilizing the current-period adjustment method, which eliminates the requirement that entities apply the new lease standard to the comparative periods presented in the year of adoption.

The Company is the lessee in a lease contract when the Company obtains the right to use the asset. Operating leases are included in the line items right-of-use asset, lease obligation, current, and lease obligation, long-term in the consolidated balance sheet. Right-of-use asset represents the Company’s right to use an underlying asset for the lease term and lease obligations represent the Company’s obligations to make lease payments arising from the lease, both of which are recognized based on the present value of the future minimum lease payments over the lease term at the commencement date. Leases with a lease term of 12 months or less at inception are not recorded on the consolidated balance sheet and are expensed on a straight-line basis over the lease term in the consolidated statements of operations. The Company determines the lease term by agreement with lessor, including lease renewal and extension. As the leases do not provide an implicit interest rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of future payments.

Equity Method Investment

In 2020, the Company adopted a new accounting policy related to equity method investments in connection with its equity investment in CNNC Accuray (Tianjin) Medical Technology Co. Ltd., the Company’s joint venture in China (the “JV”). The equity method investment that the Company holds in the JV for which the Company has the ability to exercise significant influence over the JV but lacks a controlling financial interest in the investee. The equity method investment is measured at cost and adjusted for impairment, if any, for the Company’s share of the investee's income or loss and intra-entity profits. The Company recognizes its proportionate share of income or loss from the JV on a one-quarter lag due to the timing of the availability of the JV’s financial records. Profit earned by the Company from the JV is eliminated through cost of goods sold until it is realized; such profits would generally be considered realized when the inventory has been sold through to third parties.

Equity method goodwill is not amortized, but is evaluated for impairment on an annual basis and when impairment indicators are present. Our impairment analysis considers qualitative and quantitative factors that may have a significant impact on the investee's fair value. Qualitative factors include the investee's financial condition and business outlook, industry and sector performance, operational and financing cash flow activities, and other relevant factors affecting the investee. When indicators of impairment exist, we prepare quantitative assessments of the fair value of our non-marketable equity investments, which require judgment and the use of estimates, including discount rates, investee revenue and costs, and comparable market data, among others.

Income Taxes

The Company is required to estimate its income taxes in each of the tax jurisdictions in which it operates prior to the completion and filing of tax returns for such periods. This process involves estimating actual current tax expense together with assessing temporary differences in the treatment of items for tax purposes versus financial accounting purposes that may create net deferred tax assets and liabilities. The Company accounts for income taxes under the asset and liability method, which requires, among other things, that deferred income taxes be provided for temporary differences between the tax bases of the Company’s assets and liabilities and their financial statement reported amounts. In addition, deferred tax assets are recorded for the future benefit of utilizing net operating losses, research and development credit carryforwards and other deferred tax assets.

The Company records a valuation allowance to reduce its deferred tax assets to the amount the Company believes is more likely than not to be realized. Because of the uncertainty of the realization of the deferred tax assets, the Company has recorded a full valuation allowance against its domestic and certain foreign net deferred tax assets.

Accumulated Other Comprehensive Income (Loss)

The components of comprehensive income (loss) consist of net income (loss), changes in foreign currency exchange rate translation and net changes related to a defined benefit pension plan. The changes in foreign currency exchange rate translation and net changes related to the defined benefit pension plan are excluded from earnings and reported as a component of stockholders’ equity. The foreign currency translation adjustment results from those subsidiaries not using the United States dollar as their functional currency since the majority of their economic activities are primarily denominated in their applicable local currency. Accordingly, all assets and liabilities related to these operations are translated at the current exchange rates at the end of each period, whereas revenues and expenses are translated at average exchange rates in effect during the period. The resulting cumulative translation adjustments are recorded directly to the accumulated other comprehensive loss account in stockholders’ equity.

Recent Accounting Pronouncements

12 Months Ended

Jun. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Recent Accounting Pronouncements

Note 2. Recent Accounting Pronouncements

Accounting Pronouncement Recently Adopted

In June 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which replaces the current incurred loss impairment methodology with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The Company adopted this update effective July 1, 2020 and the implementation of this update did not have a material impact on its consolidated financial position, results of operations or cash flows.

In November 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808) to clarify revenue accounting for collaborative arrangements entered into with customers. The Company adopted this standard effective July 1, 2020. The adoption of this standard had no impact on our consolidated financial statements and disclosure.

Accounting Pronouncements Not Yet Effective

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying Accounting for Income Taxes (“ASU 2019-12”). The amendments in ASU 2019-12 are intended to simplify various aspects related to accounting for income taxes and reduce the cost of accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019-12 is effective for the Company beginning July 1, 2021 with early adoption permitted. The Company is evaluating the impact of ASU 2019-12, but does not expect adopting this new accounting guidance will have a material impact on its consolidated financial statements.

In January 2020, the FASB issued ASU 2020-01 Investments-Equity Securities (Topic 321), Investments-Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815) - Clarifying the Interactions between Topic 321, Topic 323, and Topic 815. This guidance addresses accounting for the transition into and out of the equity method and provides clarification of the interaction of rules for equity securities, the equity method of accounting, and forward contracts and purchase options on certain types of securities. This standard is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2020. Early adoption is permitted. The Company does not expect a material impact on the Consolidated Financial Statements upon the adoption of ASU 2020-01, which is effective for the Company in its fiscal year and interim periods beginning on July 1, 2021.

In March 2020, the FASB issued an update (“ASU 2020-04”) establishing Accounting Standards Codification (“ASC”) Topic 848, Reference Rate Reform. ASU 2020-04 contains practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts. The guidance in ASU 2020-04 is optional

and may be elected over time as reference rate reform activities occur. The Company’s New Term Loan Facility and New Revolving Credit Facility applies Eurodollar rate LIBOR to the variable component of the interest rate, if a Benchmark transition event, or an early opt-in election, as applicable occurred a transition to the use of the Secured Overnight Financing Rate ("SOFR") to replace such rate. The Company is currently evaluating the impact of the guidance and our options related to the practical expedients.

In August 2020, the FASB issued Accounting Standards Update No. 2020-06, Debt – Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging – Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity (“ASU 2020-06”). ASU 2020-06 simplifies the accounting for convertible instruments, the accounting for contracts in an entity’s own equity, and the related earnings per share calculations. The new standard is effective for fiscal years beginning after December 15, 2021; however, the Company currently plans to early adopt this guidance on July 1, 2021 using the modified retrospective method, which will result in a cumulative-effect adjustment to the opening balance of retained earnings on the date of adoption. Prior period financial statements will not be restated upon adoption.

Upon adoption of ASU 2020-06, the Company expects the following significant accounting changes:

Elimination of the cash conversion model. Under current GAAP, instruments that may be partially settled in cash are in the scope of the “cash conversion” model, which requires the conversion feature to be separately reported in equity. Under ASU 2020-06, the Company will no longer be required to separately record the conversion feature in equity and instead will account for the convertible instrument as a single unit of debt, thereby eliminating the subsequent amortization of the debt discount as interest expense. Similarly, the portion of issuance costs previously allocated to equity under current GAAP will be reclassified to debt and amortized as interest expense. The Company has a full valuation allowance against its net US deferred tax assets and as such there is no associated net deferred tax liability on the Company’s consolidated financial statements.

ii.

Use of the “if-converted” method for calculating diluted earnings per share. Under current GAAP, the Company utilizes the “treasury stock” method for computing the diluted earnings per share impact of its convertible senior notes, as its current intention is to settle the principal amount of the Notes with cash. Under the treasury stock method, only the excess of the average stock price of the Company’s common stock for the reporting period over the conversion price is utilized in determining the impact to the diluted earnings per share denominator. Under ASU 2020-06, the Company may no longer rebut the presumption of share settlement for its convertible instrument and therefore may no longer utilize the treasury stock method. Instead, the Company will be required to use the if-converted method, which requires all underlying shares be included in the denominator regardless of the average stock price for the reporting period, in addition to adding back to the numerator the related interest expense from the stated coupon and the amortization of issuance costs, if dilutive.

The Company currently estimates the adoption of ASU 2020-06 will impact the opening consolidated balance sheet as follows (in thousands):


Consolidated Balance Sheet	June 30, 2021			Effect of Adoption ASU 2020-06			July 1, 2021 As Adjusted
Convertible senior notes, net		75,100			24,784			99,884
Additional paid-in-capital		554,680			(25,634	)		529,046
Accumulated deficit		(488,024	)		850			(487,174	)

In October 2020, the FASB issued ASU 2020-10, Codification Improvements - Disclosures. This ASU improves consistency by amending the codification to include all disclosure guidance in the appropriate disclosure sections and clarifies application of various provisions in the codification by amending and adding new headings, cross referencing to other guidance, and refining or correcting terminology. This ASU is effective for fiscal years beginning after December 15, 2020.

In April 2021, the FASB issued ASU 2021-04, which included Topic 260 “Earnings Per Share”. This guidance clarifies and reduces diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options due to a lack of explicit guidance in the FASB Codification. The ASU 2021-04 is effective for all entities for fiscal years beginning after December 15, 2021. Early adoption is permitted. The Company is currently evaluating the impact of adopting ASU 2021-04 on its consolidated financial statements.

Revenue

12 Months Ended

Jun. 30, 2021

Revenue From Contract With Customer [Abstract]

Revenue

Note 3. Revenue

Contract Balances

The timing of revenue recognition, billings, and cash collections results in trade receivables, unbilled receivables, and deferred revenues on the consolidated balance sheets. The Company may offer longer or extended payments of more than one year for qualified customers in some circumstances. At times, revenue recognition occurs before the billing, resulting in an unbilled receivable, which represents a contract asset. The contract asset is a component of accounts receivable and other assets for the current and non-current portions, respectively.

When the Company receives advances or deposits from customers before revenue is recognized, this results in a contract liability. It can take up to two and half years from the time of order to revenue recognition due to the Company’s long sales cycle.

Changes in the contract assets and contract liabilities are as follows:

	June 30, 2021		June 30, 2020		Change
(Dollars in thousands)	Amount		Amount		$			%
Assets:
Unbilled accounts receivable – current (1)	$	12,354	$	11,739		615			5
Interest receivable – current (2)		512		493		19			4
Long-term accounts receivable (3)		4,970		3,810		1,160			30
Interest receivable – non-current (3)		1,083		1,342		(259	)		(19	)
Liabilities:
Customer advances		24,937		22,571		2,366			10
Deferred revenue – current		81,660		83,207		(1,547	)		(2	)
Deferred revenue – non-current		23,685		24,125		(440	)		(2	)

(1)	Included in accounts receivable on consolidated balance sheets

(2)	Included in prepaid expenses and other current assets on consolidated balance sheets

(3)	Included in other assets on consolidated balance sheets

During the years ended June 30, 2021 and June 30, 2020, the Company recognized revenues of $107.3 million and $87.7 million, respectively, which were included in the deferred revenue balances at June 30, 2020 and June 30, 2019, respectively.

Remaining Performance Obligations

Remaining performance obligations represent deferred revenue from open contracts for which performance has already started and the transaction price from executed non-cancelable contracts for which performance has not yet started. Service contracts in general are considered month-to-month contracts.

As of June 30, 2021, total remaining performance obligations amounted to $1,085.7 million. Of this total amount, $76.3 million related to long-term warranty and service, such as non-cancellable post contract services and system warranty, which is expected to be recognized over the remaining service period and warranty period for systems that have been delivered, respectively.

The following table represents the Company's remaining performance obligations related to long-term warranty and non-cancellable post contract services as of June 30, 2021 and the estimated revenue expected to be recognized (the time bands reflect management’s best estimate of when the Company will transfer control to the customer and may change based on timing of shipment, readiness of customers’ facilities for installation, installation requirements, and availability of products). The Company has elected the practical expedient to not disclose the unsatisfied performance obligations for contracts with an original expected duration of one year or less:

	Fiscal years of revenue recognition
(Dollars in thousands)	2022		2023		2024		Thereafter
Long-term warranty and service	$	33,479	$	23,042	$	10,135	$	9,665

For the remaining $1,009.4 million of performance obligations, the Company estimates 20% to 27% will be recognized in the next 12 months, and the remaining portion will be recognized thereafter. The Company’s historical experience indicates that some of its customers will cancel or renegotiate contracts as economic conditions change or when product offerings change during the long sales cycle. Based on historical experience, approximately 26% of the Company’s $1,009.4 million open contracts may never result in revenue due to cancellation.

Capitalized Contract Costs

As of June 30, 2021 and 2020, the balance of capitalized costs to obtain a contract was $8.9 million and $7.9 million, respectively. The Company has classified the capitalized costs to obtain a contract as a component of prepaid expenses and other current assets and other assets with respect to the current and non-current portions of capitalized costs, respectively, on the consolidated balance sheets. The Company incurred a $0.6 million and $1.2 million impairment loss for the years ended June 30, 2021 and 2020, respectively. During the years ended June 30, 2021 and 2020 the Company recognized $2.8 million and $1.9 million, respectively, in expense related to the amortization of the capitalized contract costs.

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Supplemental Financial Information Disclosure [Abstract]

Supplemental Financial Information

12 Months Ended

Jun. 30, 2021

Supplemental Financial Information

Note 4. Supplemental Financial Information

Consolidated Balance Sheet

Accounts receivable, net

Accounts receivable, net consisted of the following (in thousands):

	June 30, 2021			June 30, 2020
Accounts receivable	$	74,054		$	80,128
Unbilled fees and services		12,354			11,739
		86,408			91,867
Less: Allowance for credit losses		(1,048	)		(1,268	)
Accounts receivable, net	$	85,360		$	90,599

The Company received payment or had credits of $0.8 million, added $0.7 million and wrote off $0.2 million from the allowance for credit losses in fiscal 2021. The Company received payment or had credits of $0.4 million, added $1.2 million and wrote off $0.1 million from the allowance for credit losses in fiscal 2020.

Financing receivables

A financing receivable is a contractual right to receive money, on demand or on fixed or determinable dates, that is recognized as an asset in the Company’s balance sheet. The Company’s financing receivables, consisting of its accounts receivable with contractual maturities of more than one year, totaled $3.4 million and $3.8 million at June 30, 2021 and 2020, respectively, and are included in Other Assets in the consolidated balance sheets. The Company evaluates the credit quality of a customer at contract inception and monitors credit quality over the term of the underlying transactions. The Company performs a credit analysis for all new customers and reviews payment history, current order backlog, financial performance of the customers and other variables that augment or mitigate the inherent credit risk of a particular transaction. Such variables include the underlying value and liquidity of the collateral, the essential use of the equipment, the contract term and the inclusion of credit enhancements, such as guarantees, letters of credit or security deposits. The Company classifies accounts as high risk when it considers the financing receivable to be impaired or when management believes there is a significant near‑term risk of non‑payment. The Company performed an assessment of the allowance for credit losses related to its financing receivables. Based upon such assessment, the Company recorded adjustments of $3.4 million and $0.8 million to the allowance for credit losses related to such financing receivables during the years ended June 30, 2021 and 2020, respectively.

A summary of the Company’s financing receivables is presented as follows (in thousands):

	June 30, 2021			June 30, 2020
Financing receivable	$	7,102		$	11,245
Allowance for credit losses		(943	)		(4,369	)
Total, net	$	6,159		$	6,876
Reported as:
Current	$	2,772		$	3,084
Non-current		3,387			3,792
Total, net	$	6,159		$	6,876

The Company added $0.2 million and wrote off $3.6 million from the allowance for credit losses in fiscal year 2021. The Company added $0.8 million in fiscal year 2020.

Actual cash collections may differ from the contracted maturities due to early customer buyouts, refinancing, or defaults.

Inventories, net

Inventories consisted of the following (in thousands):

	June 30, 2021		June 30, 2020
Raw materials	$	45,301	$	48,037
Work-in-process		22,014		17,798
Finished goods		58,614		68,539
Inventories, net	$	125,929	$	134,374

Property and Equipment, net

Property and equipment consisted of the following (in thousands):

	June 30, 2021			June 30, 2020
Furniture and fixtures	$	1,636		$	1,961
Computer and office equipment		8,972			10,896
Software		7,477			11,606
Leasehold improvements		26,102			26,206
Machinery and equipment		45,265			48,830
Construction in progress		1,055			623
		90,507			100,122
Less: Accumulated depreciation		(78,175	)		(84,773	)
Property and equipment, net	$	12,332		$	15,349

Depreciation and amortization expense related to property and equipment for the years ended June 30, 2021, 2020 and 2019 was $6.2 million, $7.3 million and $8.1 million, respectively.

Accumulated Other Comprehensive Income (Loss)

The following table summarizes the changes in accumulated other comprehensive income (loss) by component (in thousands):

	Foreign Currency Items			Change in Defined Pension Benefit Obligation			Total
Balance at June 30, 2019	$	990		$	(1,000	)	$	(10	)
Other comprehensive loss		(238	)		(236	)		(474	)
Balance at June 30, 2020	$	752		$	(1,236	)	$	(484	)
Other comprehensive loss		1,705			872			2,577
Balance at June 30, 2021	$	2,457		$	(364	)	$	2,093

Consolidated Statements of Operations

Other expense, net consisted of the following (in thousands):

	Years Ended June 30,
(in thousands)	2021			2020			2019
Interest expense	$	(16,893	)	$	(18,080	)		(15,084	)
Foreign currency transaction loss		(1,953	)		(2,343	)		(665	)
Gain on contribution to joint venture		—			12,964			—
Loss on Debt Extinguishment		(9,948	)		—			—
Other expense, net		1,128			759			822
Total other expense, net	$	(27,666	)	$	(6,700	)	$	(14,927	)

Leases

12 Months Ended

Jun. 30, 2021

Leases [Abstract]

Leases

Note 5. Leases

The Company adopted ASC 842 – Leases using the current period adjustment method beginning on July 1, 2019. Under this approach, the Company did not restate its comparative amounts and recognized a right-of-use asset equal to the present value of the future lease payments. The Company elected to apply the practical expedient that allows

for not reassessing: (1) whether any expired or existing contracts are or contain leases, (2) the lease classification for any expired or existing leases and (3) initial direct costs for any expired or existing leases. The practical expedient applied to transition contracts that were previously identified as leases and elected to not recognize right-of-use assets and lease obligations for leases of low value assets.

The Company has operating leases for corporate offices and warehouse facilities worldwide. Additionally, the Company leases cars, copy machines and laptops through various operating leases. For some leases the Company has entered into non-cancelable operating lease agreements with various expiration dates through June 2026. Certain lease agreements include options to renew or terminate the lease, which are not reasonably certain to be exercised and therefore are not factored into the determination of lease payments.

Operating lease costs for the twelve months ended June 30, 2021 and 2020 were $9.1 million and $9.5 million, respectively, not including short-term operating lease costs for the twelve months ended June 30, 2021 and 2020 of $0.2 million and $0.5 million, respectively.

For the twelve months ended June 30, 2021 and 2020, cash paid for amounts included in the measurement of operating lease liabilities was approximately $9.7 million and $9.5 million, respectively. Operating lease liabilities arising from obtaining operating right-of-use assets totaled $1.1 million and $5.2 million, respectively for the years ended June 30, 2021 and 2020.

Operating lease right-of-use assets and operating lease obligation are represented in the table below (in thousands):

	June 30, 2021			June 30, 2020
Beginning balance operating lease right-of-use asset (1)	$	28,647		$	30,578
Lease asset added		1,069			5,244
Amortization for the year		(7,194	)		(7,175	)
Ending balance operating lease right-of-use asset	$	22,522		$	28,647

Beginning balance operating lease obligation (1)	$	32,397		$	34,465
Lease liability added		1,069			5,244
Repayment and interest accretion		(7,857	)		(7,312	)
Ending balance operating lease obligation	$	25,609		$	32,397

Current portion of operating lease obligation	$	8,169		$	8,224
Noncurrent portion of operating lease obligation	$	17,441		$	24,173

(1)

June 30, 2020 beginning balance represents ASU 842 date of adoption as of July 1, 2019.

Maturities of operating lease liabilities as of June 30, 2021 are presented in the table below (in thousands):

Year Ending June 30,	Amount
2022	$	9,564
2023		8,906
2024		6,148
2025		3,163
2026		5
Total operating lease payments		27,786
Less: imputed interest		(2,177	)
Present value of operating lease liabilities	$	25,609

The weighted average remaining lease term for the Company’s operating leases was 3.09 years and the weighted average discount rate was 5.39% as of June 30, 2021.

Goodwill and Purchased Intangible Assets

12 Months Ended

Jun. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Purchased Intangible Assets

Note 6. Goodwill and Purchased Intangible Assets

Goodwill

Goodwill as of June 30, 2021 and 2020 and changes in the carrying amount of goodwill for the respective periods are as follows (in thousands):

	As of June 30,
	2021		2020
Balance at the beginning of the period	$	57,717	$	57,770
Currency translation adjustment		243		(53	)
Balance at the end of the period	$	57,960	$	57,717

In fiscal year 2021, the Company performed its annual goodwill impairment test and determined that there was no impairment to goodwill. The Company will continue to monitor its recorded goodwill for indicators of impairment.

Purchased Intangible Assets

The Company’s intangible assets associated with purchased patent license are as follows (in thousands):

		As of June 30, 2021							As of June 30, 2020
	Useful Lives	Gross Carrying Amount		Accumulated Amortization			Net Amount		Gross Carrying Amount		Accumulated Amortization			Net Amount
	(in years)
Patent license	2 - 7	$	1,170	$	(735	)	$	435	$	1,170	$	(507	)	$	663

During fiscal year 2017, the Company purchased a patent license with a useful life of seven years. During the fiscal year 2020 the Company purchased a patent license for $170 thousand with a useful life of two years. The Company did not identify any triggering events that would indicate potential impairment of its definite‑lived intangible and long‑lived assets as of June 30, 2021 and 2020.

Amortization expense related to purchased intangible assets was $0.2 million, $0.2 million and $0.1 million for the years ended June 30, 2021, 2020 and 2019, respectively.

The estimated future amortization expense of purchased intangible assets as of June 30, 2021 is as follows (in thousands):

Year Ending June 30,	Amount
2022	$	185
2023		143
2024		107
2025		—
	$	435

Derivative Financial Instruments

12 Months Ended

Jun. 30, 2021

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Note 7. Derivative Financial Instruments

The Company utilizes foreign currency forward contracts with reputable financial institutions to manage its exposure of fluctuations in foreign currency exchange rates on certain intercompany balances and foreign currency denominated cash, customer receivables and liabilities. The Company does not use derivative financial instruments for speculative or trading purposes. These forward contracts are not designated as hedging instruments for accounting purposes. Principal hedged currencies include the Euro, Japanese Yen, Swiss Franc, and U.S. Dollar. The periods of these forward contracts range up to approximately three months and the notional amounts are intended to be consistent with changes in the underlying exposures. The Company intends to exchange foreign currencies for U.S. Dollars at maturity.

The Company enters into forward currency exchange contracts to hedge its overseas operating expenses and other liabilities when deemed appropriate. As of June 30, 2021 and 2020, the Company had the following outstanding forward currency exchange contracts (in notional amount):

	As of June 30,
(In thousands and U.S. dollars)	2021		2020
Canadian Dollar	$	527	$	—
Swiss Franc		8,891		—
Chinese Yuan		1,927		—
Euro		19,037		—
British Pound		3,191		—
Indian Rupee		7,825		—
Japanese Yen		12,803		—
	$	54,201	$	—

The Company entered into the foreign exchange forward contract on June 30, 2021 and there was no impact on balance sheet.

The following table shows the effect of forward contracts not designated as hedging instruments and foreign currency transactions gains and losses, which were included in “Other expense, net” on the consolidated statements of operations in fiscal years (in thousands):

	Years ended June 30,
	2021			2020			2019
Foreign currency exchange gain (loss) on forward contracts	$	(2,349	)	$	744		$	17
Foreign currency transactions gain (loss)		396			(3,087	)		(682	)

Fair Value Measurements

12 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 8. Fair Value Measurements

Fair value is an exit price representing the amount that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The fair value hierarchy contains three levels of inputs that may be used to measure fair value, as follows:

Level 1— Unadjusted quoted prices that are available in active markets for the identical assets or liabilities at the measurement date.

Level 2— Other observable inputs available at the measurement date, other than quoted prices included in Level 1, either directly or indirectly, including:

•

Quoted prices for similar assets or liabilities in active markets;

•

Quoted prices for identical or similar assets in non-active markets;

•

Inputs other than quoted prices that are observable for the asset or liability; and

•

Inputs that are derived principally from or corroborated by other observable market data.

Level 3— Unobservable inputs that cannot be corroborated by observable market data and require the use of significant management judgment. These values are generally determined using pricing models for which the assumptions utilize management’s estimates of market participant assumptions.

Assets and Liabilities That Are Measured at Fair Value on a Nonrecurring Basis

At June 30, 2021 the Company had open currency forward contracts to purchase or sell foreign currencies with a stated, or notional, value of approximately $54.2 million. The fair value of the underlying currency based upon the June 30, 2021 exchange rate was approximately $54.2 million, which it considers to be a Level 2 fair value measurement.

The Company’s debt is measured on a non-recurring basis using Level 2 inputs based upon observable inputs of the Company’s underlying stock price and the time value of the conversion option, since an observable quoted price of the Notes is not readily available.

The New Revolving Credit Facility and the New Term Loan Facility (collectively, the “New Credit Facilities”) are valued at market interest rates, which it considers to be a Level 2 fair value measurement. The Company believes that the carrying value of these financial instruments approximates its estimated fair value based on consideration of effective interest rates and available interest to the Company based on the recent debt transactions.

The following table summarizes the carrying value and estimated fair value of the New Credit Facilities and Notes (in thousands):

	June 30, 2021				June 30, 2020
	Carrying Value		Fair Value		Carrying Value		Fair Value
3.75% Convertible Notes Due 2022	$	2,712	$	3,164	$	76,398	$	65,272
3.75% Convertible Notes Due 2026		72,388		108,163		—		—
New Term Loan Facility		78,697		78,697		84,908		84,908
New Revolving Credit Facility		20,000		20,000		28,001		28,001
Total	$	173,797	$	210,024	$	189,307	$	178,181

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

12 Months Ended

Jun. 30, 2021

Commitments and Contingencies

Note 9. Commitments and Contingencies

Long‑term Debt Commitments

The Company is required to make semi‑annual interest payments on the 3.75% Convertible Notes due 2022 and 3.75% Convertible Notes due 2026, and monthly interest payments on the New Revolving Credit Facility and New Term Loan Facility. See Note 10, Debt, for details.

Future minimum long‑term principal and interest on the Notes and New Credit Facilities as of June 30, 2021 are as follows (in thousands):

Year Ending June 30,	Long-Term Debt (1)
2022	$	11,424
2023		16,018
2024		12,944
2025		14,696
2026		181,712
Total	$	236,794

(1)

These amounts represent principal and interest cash payments over the contractual life of the debt obligations, including anticipated interest payments that are not recorded on the Company’s consolidated balance sheet. Any conversion, premium, redemption or purchase of the Notes that would impact cash payments noted in the preceding table.

Purchase Commitments

The Company’s purchase commitments and obligations include all open purchase orders and contractual obligations in the ordinary course of business, including commitments with contract manufacturers and suppliers, for which the Company has not received the goods or services and acquisition and licensing of intellectual property. A majority of these purchase obligations are due within a year. Although open purchase orders are considered enforceable and legally binding, the terms generally allows the Company the option to cancel, reschedule, and adjust its requirements based on the Company’s business needs prior to the delivery of goods or performance of services, and hence, these purchase orders have not been included in the table above.

Indemnities and Commitments

The Company enters into standard indemnification agreements with its landlords and all superior mortgagees and their respective directors, officers’ agents, and employees in the ordinary course of business. Pursuant to these agreements, the Company will indemnify, hold harmless, and agree to reimburse the indemnified party for losses suffered or incurred by the indemnified party, generally the landlords, in connection with any loss, accident, injury, or damage by any third‑party with respect to the leased facilities. The term of these indemnification agreements is from the commencement of the lease agreements until termination of the lease agreements. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, historically the Company has not incurred claims or costs to defend lawsuits or settle claims related to these indemnification agreements. The Company has not recorded any liability associated with its indemnification agreements as it is not aware of any pending or threatened actions that represent probable losses as of June 30, 2021.

Guarantees

As of June 30, 2021, the Company had various bank guarantees totaling approximately $1.2 million related to a bidding process with various customers. As of June 30, 2020, the Company had bank guarantees totaling approximately $1.0 million related to a bidding process with three customers.

Royalty Agreement

The Company has an exclusive license agreement with the Wisconsin Alumni Research Foundation (WARF), to make, use, sell and otherwise distribute products under certain of WARF’s patents anywhere in the world. The Company is required to pay WARF a royalty for each TomoTherapy System sold that includes the licensed technology. The license agreement expires upon expiration of the patents and may be terminated earlier if the Company so elects. The license agreement expired on August 6, 2019 as a result of the expiration of the patent.

The Company recorded royalty costs of $1.9 million, $2.5 million and $3.8 million for the years ended June 30, 2021, 2020 and 2019, respectively, which were recorded in cost of revenue or deferred cost of revenue. The

Company had approximately $2.3 million and $2.6 million accrued liabilities at June 30, 2021 and 2020, respectively, related to this agreement.

Software License Indemnity

Under the terms of the Company’s software license agreements with its customers, the Company agrees that in the event the software sold infringes upon any patent, copyright, trademark, or any other proprietary right of a third‑party, it will indemnify its customer licensees against any loss, expense, or liability from any damages that may be awarded against its customer. The Company includes this infringement indemnification in all of its software license agreements and selected managed services arrangements. In the event the customer cannot use the software or service due to infringement and the Company cannot obtain the right to use, replace or modify the license or service in a commercially feasible manner so that it no longer infringes, then the Company may terminate the license and provide the customer a refund of the fees paid by the customer for the infringing license or service. The Company has not recorded any liability associated with this indemnification, as it is not aware of any pending or threatened actions that represent probable losses as of June 30, 2021.

Litigation

From time to time, the Company is involved in legal proceedings arising in the ordinary course of its business. The Company records a provision for a loss when it believes that it is both probable that a loss has been incurred and the amount can be reasonably estimated. Currently, management believes the Company does not have any probable and reasonably estimable losses related to any current legal proceedings and claims. Although occasional adverse decisions or settlements may occur, management does not believe that an adverse determination with respect to any of these claims would individually or in the aggregate materially and adversely affect the Company’s financial condition or operating results. Litigation is inherently unpredictable and is subject to significant uncertainties, some of which are beyond the Company’s control. Should any of these estimates and assumptions change or prove to have been incorrect, the Company could incur significant charges related to legal matters that could have a material impact on its results of operations, financial position and cash flows.

Debt

12 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Debt

Note 10. Debt

3.75% Convertible Senior Notes due July 2022

In August 2017, the Company issued $85.0 million aggregate principal amount of its 3.75% Convertible Senior Notes due 2022 (the “3.75% Convertible Notes due 2022”) under an indenture between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee. $53.0 million aggregate principal amount of the 3.75% Convertible Notes due 2022 were issued to certain holders of the Company’s then outstanding 3.50% Convertible Notes due 2018 and 3.50% Series A Convertible Notes due 2018 (together, the “Prior Existing Notes”) in exchange for approximately $47.0 million aggregate principal amount of the Prior Existing Notes and $32.0 million aggregate principal amount of the 3.75% Convertible Notes due 2022 were issued to certain other qualified new investors for cash. The net proceeds of the cash issuance were used to repurchase approximately $28.0 million of Prior Existing Notes.

Holders of the 3.75% Convertible Notes due 2022 may convert their notes at any time on or after April 15, 2022 until the close of the business day immediately preceding the maturity date. Prior to April 15, 2022, holders of the 3.75% Convertible Notes due 2022 may convert their notes only under certain circumstances.

Upon conversion, the Company will have the right to pay cash, or deliver shares of common stock of the Company or a combination thereof, at the Company’s election. The initial conversion rate is 174.8252 shares of the Company’s common stock per $1,000 principal amount (which represents an initial conversion price of approximately $5.72 per share of the Company’s common stock). The conversion rate, and thus the conversion price, is subject to adjustment as further described below.

Holders of the 3.75% Convertible Notes due 2022 who convert their notes in connection with a “make-whole fundamental change,” as defined in the indenture, may be entitled to a make-whole premium in the form of an increase in the conversion rate. Additionally, in the event of a “fundamental change,” as defined in the indenture, holders of the 3.75% Convertible Notes due 2022 may require the Company to purchase all or a portion of their note

at a fundamental change repurchase price equal to 100% of the principal amount of the 3.75% Convertible Notes due 2022, plus accrued and unpaid interest, if any, to, but not including, the fundamental change repurchase date.

In May 2021, the Company exchanged approximately $82.1 million aggregate principal amount of 3.75% Convertible Notes due 2022 for approximately $97.1 million aggregate principal amount of 3.75% Convertible Notes due 2026. As of June 30, 2021, $2.9 million aggregate principal amount of 3.75% Convertible Notes due 2022 was outstanding. The exchange was treated as extinguishment of debt. The Company recorded a loss on the extinguishment of debt of $4.3 million, primarily comprised of the write-off of deferred costs associated with the 3.75% Convertible Note due 2022 and the extinguishment of the equity component of $14.5 million recognized as reduction to additional paid in capital. The $14.5 million, which is the difference between the settlement consideration paid of $96.0 million and the fair value of the liability component of $81.5 million, represents the estimated fair value of the liability component based on the expected future cash flows associated with the aggregate principal amount of $82.1 million in 3.75% Convertible Notes due 2022.

3.75% Convertible Senior Notes due July 2026

In May 2021, the Company issued $100.0 million aggregate principal amount of its 3.75% Convertible Senior Notes due 2026 (the “3.75% Convertible Notes due 2026”) under an indenture between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee. $97.1 million aggregate principal amount of the 3.75% Convertible Notes due 2026 were issued to certain holders of the Company’s outstanding 3.75% Convertible Notes due 2022 in exchange for approximately $82.1 million aggregate principal amount of 3.75% Convertible Notes due 2022 and $2.9 million of 3.75% Convertible Notes due 2026 were issued to certain other qualified new investors for cash (such transactions the “Exchange and Subscription Transactions”).

Holders of the 3.75% Convertible Notes due 2026 may convert their notes at any time on or after March 6, 2026 until the close of the business day immediately preceding the maturity date. Prior to June 6, 2026, holders of the 3.75% Convertible Notes due 2026 may convert their notes only under certain circumstances.

Upon conversion, the Company will have the right to pay cash, or deliver shares of common stock of the Company or a combination thereof, at the Company’s election. The initial conversion rate is 170.5611 shares of the Company’s common stock per $1,000 principal amount (which represents an initial conversion price of approximately $5.86 per share of the Company’s common stock). The conversion rate, and thus the conversion price, is subject to adjustment as further described below.

Holders of the 3.75% Convertible Notes due 2026 who convert their notes in connection with a “make-whole fundamental change,” as defined in the indenture, may be entitled to a make-whole premium in the form of an increase in the conversion rate. Additionally, in the event of a “fundamental change,” as defined in the indenture, holders of the 3.75% Convertible Notes due 2026 may require the Company to purchase all or a portion of their note at a fundamental change repurchase price equal to 100% of the principal amount of the 3.75% Convertible Notes due 2026, plus accrued and unpaid interest, if any, to, but not including, the fundamental change repurchase date. As of June 30, 2021, $100.0 million aggregate principal amount of 3.75% Convertible Notes due 2026 was outstanding.

The aggregate principal amount of $100.0 million, including $2.9 million which were issued to new qualified investors for cash in the 3.75% Convertible Notes due 2026, was allocated between liability component of $74.1 million and equity component of $25.9 million recognized as addition paid in capital, reduced by $0.7 million of 3.75% Convertible Notes due 2026 issuance cost allocated to additional paid in capital.

Prior Revolving Credit Facility

On June 14, 2017, the Company entered into a credit and security agreement with a lender (the “Prior Credit Agreement”). The Prior Credit Agreement provided the Company with a revolving credit facility in the initial amount of $52.0 million (the “Prior Revolving Credit Facility”). Availability for borrowings under the Prior Revolving Credit Facility was subject to a borrowing base that was calculated as a function of the value of the Company’s eligible accounts receivable and eligible inventory, and the Company was required to maintain a minimum drawn balance of at least 30% of such availability. Interest on the borrowings under the Prior Revolving Credit Facility was payable monthly in arrears at an annual interest rate of reserve-adjusted, 90-day LIBOR plus 4.50% and had initial maturity date of June 14, 2021.

In December 2017, concurrently with the Prior Term Loan Agreement (as defined below), the Company entered into an amendment to the Credit Agreement (the “Prior Amendment” and, collectively with the Prior Credit Agreement, the “Amended Prior Credit Agreement”). The Prior Amendment reduced the maximum borrowings under the Prior Revolving Credit Facility to $32.0 million and extended the maturity date of the Prior Revolving Credit Facility to December 15, 2022.

In May 2019, the Company amended the Amended Prior Credit Agreement to, among other things, decrease the interest rate from 90-day LIBOR plus 4.50% to 90-day LIBOR plus 3.50% and extend the maturity date to May 30, 2024 and update the calculation of the deferred revolving loan origination fee such that it is based on the amount of time elapsed from the effective date of the May 2019 amendment. The Company accounted for the amendment as a modification of existing debt and deferred an insignificant amount of offering costs on the consolidated balance sheet as of June 30, 2019. The Amended Prior Credit Agreement was further amended in August 2019 to, among other things, revise or add financial covenants, including the fixed charge coverage ratio, minimum net revenue, minimum consolidated cash balance and minimum consolidated domestic cash balance tests. Other significant terms remained unchanged. The Company accounted for the amendment as a modification of existing debt and deferred an insignificant amount of offering costs on the consolidated balance sheet.

On May 6, 2021, the Company entered into an amendment to the Amended Prior Credit Agreement to amend the Prior Revolving Credit Facility to, among other things and subject to certain conditions, permit the Company to consummate the Exchange and Subscription Transactions and related agreements. On May 14, 2021, the initial borrowings under the New Credit Agreement (as defined below), plus available cash on hand, were used to repay all outstanding obligations and terminate all commitments under the Amended Prior Credit Agreement. The Prior Revolving Credit Facility was terminated on May 14, 2021. The Company incurred a loss on the extinguishment of debt as a result of repaying all amounts outstanding on the Prior Revolving Credit Facility. The loss on the extinguishment of debt of $1.4 million was primarily comprised of the write-off of deferred costs associated with the Prior Credit Facilities.

Prior Term Loan

In December 2017, the Company entered into a credit and security agreement with a lender (the “Prior Term Loan Agreement”). The Prior Term Loan Agreement provided for an initial term loan of $40.0 million with an additional tranche of $20.0 million undrawn and available through December 31, 2018, if specified conditions were met (the “Prior Term Loan”). In connection with the Prior Amendment, the Company used a portion of the net proceeds from the initial advance to repay a portion of the outstanding borrowings under the Prior Revolving Credit Facility. Interest on the Prior Term Loan was payable monthly in arrears at an annual interest rate of 6.75% plus 90-day LIBOR. The Prior Term Loan Agreement matures December 15, 2022 and, if prepaid, had fees equal to 3%, 2%, and 1% of the prepayment amount if such termination occurred within the first year, the second year, and the third year of funding, respectively. The term of the loan was 60 months with interest only for the first 24 months followed by straight-line amortization of principal for the remaining months. In addition, the Company paid an annual administrative fee of 0.25% and a final payment of 4.0% of the Prior Term Loan amount.

In December 2018, the Company drew an additional $5.0 million under the Prior Term Loan Agreement and in connection therewith entered into the second amendment to the Prior Term Loan Agreement (“Prior Amendment 2”) which, among other things, (i) extended the term loan tranche 2 commitment termination date for the remaining $15.0 million unfunded commitment from December 31, 2018 to June 30, 2019; (ii) provided that term loan tranche 2 may be drawn in two separate advances; and (iii) updated the calculation of the prepayment fee such that it is based on the amount of time elapsed from the effective date of Prior Amendment 2.

In May 2019, the Company amended the Prior Term Loan Agreement to, among other things, increase the loan tranche 2 commitment by $0.5 million, extend the maturity date to May 30, 2024, decrease the annual interest rate from 6.75% plus 90-day LIBOR to 5.50% plus 90-day LIBOR, and modify the calculation prepayment fee such that it is based on the amount of time elapsed from the effective date of the May 2019 amendment. The Company accounted for the amendment as a modification of existing debt and recorded approximately $1.5 million of debt discount costs associated with the amendment against long-term debt on the consolidated balance sheets as of June 30, 2019.

In August 2019, the Company amended the Prior Term Loan Agreement to, among other things, increase the loan commitment by $25 million in the form of a new tranche (“Tranche 3”), increase the annual interest rate from 5.50% plus 90-day LIBOR to 6.75% plus 90-day LIBOR, and revise or add financial covenants, including the fixed charge coverage ratio, minimum net revenue, minimum consolidated cash balance and minimum consolidated domestic cash balance tests. Other significant terms remain unchanged. The Company borrowed in full Tranche 3, or $25 million, on the date of the amendment. The Company accounted for the amendment as a modification of existing debt, at the same time, the Company recorded approximately $1.6 million of debt discount costs associated with the amendment against long-term debt.

On May 6, 2021, the Company entered into an amendment to the Prior Term Loan Agreement to amend the Prior Term Loan Facility to, among other things and subject to certain conditions, permit the Company to consummate the Exchange and Subscription Transactions and related agreements. On May 14, 2021, the initial borrowings under the New Credit Agreement (as defined below), plus available cash on hand, were used to repay all outstanding obligations and terminate all commitments under the Prior Term Loan Agreement. The Prior Term Loan Facility was terminated on May 14, 2021. The Company incurred a loss on the extinguishment of debt as a result of repaying all amounts outstanding on the Prior Term Loan Facility. The loss on the extinguishment of debt of $4.3 million was primarily comprised of the write-off of deferred costs associated with the Prior Credit Facilities.

New Credit Facilities

On May 6, 2021, the Company entered into a senior secured credit agreement (the “New Credit Agreement”) with Silicon Valley Bank, individually as a lender and agent (“Agent”), and the other lenders from time to time parties thereto (together with Silicon Valley Bank as a lender, the “Lenders”), which provides for a new five-year $80 million term loan (the “New Term Loan Facility”) and a $40 million revolving credit facility (the “New Revolving Credit Facility” and, together with the New Term Loan Facility, the “New Credit Facilities”). The initial borrowings under the New Credit Agreement, including $25 million under the New Revolving Credit Facility, were funded on May 14, 2021.

Interest on the borrowings under the New Credit Facilities is payable in arrears on the applicable interest payment date at an annual interest rate of reserve-adjusted, 90-day LIBOR (subject to a 0.50% floor) plus, initially, 3.00% and after the Agent receives copies of the consolidated financial statements of the Company for the fiscal quarter ending June 30, 2021: 3.25% if the Consolidated Senior Net Leverage Ratio (as defined in the New Credit Agreement) is greater than or equal to 3.00:1.00; 3.00% if the Consolidated Senior Net Leverage Ratio is greater than or equal to 2.00:1.00 but less than 3.00:1.00; 2.75% if the Consolidated Senior Net Leverage Ratio is greater than or equal to 1.00:1.00 but less than 2.00:1.00; and 2.50% if the Consolidated Senior Net Leverage Ratio is less than 1.00:1.00. The New Credit Agreement requires the Company to pay the Lenders an unused commitment fee equal to, initially, 0.35% per annum of the average unused portion of the New Revolving Credit Facility and after the Agent receives copies of the consolidated financial statements of the Company for the fiscal quarter ending June 30, 2021: 0.40% per annum of the average unused portion of the Revolving Credit Facility if the Consolidated Senior Net Leverage Ratio is greater than or equal to 3.00:1.00; 0.35% per annum of the average unused portion of the New Revolving Credit Facility if the Consolidated Senior Net Leverage Ratio is greater than or equal to 2.00:1.00 but less than 3.00:1.00; 0.30% per annum of the average unused portion of the New Revolving Credit Facility if the Consolidated Senior Net Leverage Ratio is greater than or equal to 1.00:1.00 but less than 2.00:1.00; and 0.25% per annum of the average unused portion of the New Revolving Credit Facility if the Consolidated Senior Net Leverage Ratio is less than 1.00:1.00. If all or a portion of the loans under the New Term Loan Facility are prepaid, then the Company will be required to pay a fee equal to 1% of the of the aggregate amount of the loans so prepaid, subject to certain exceptions.

The New Credit Agreement contains restrictions and covenants applicable to the Company and its subsidiaries. Among other requirements, the Company may not permit the Fixed Charge Coverage Ratio (as defined in the New Credit Agreement) to be less than a certain specified ratio for each fiscal quarter during the term of the New Credit Agreement or the Consolidated Senior Net Leverage Ratio to be greater than a certain specified ratio for each fiscal quarter during the term of the New Credit Agreement.

The New Credit Agreement also contains customary covenants that limit, among other things, the ability of the Company and its subsidiaries to (i) incur indebtedness, (ii) incur liens on their property, (iii) pay dividends or make

other distributions, (iv) sell their assets, (v) make certain loans or investments, (vi) merge or consolidate, (vii) voluntarily repay or prepay certain indebtedness and (viii) enter into transactions with affiliates, in each case subject to certain exceptions. The New Credit Agreement contains customary representations and warranties and events of default.

As of June 30, 2021, $20.0 million of aggregate principal amount was outstanding under the New Revolving Credit Facility, $80 million aggregate principal amount was outstanding under the New Term Loan Facility and $1.3 million of associated unamortized debt costs.

The following table presents the carrying value of the New Credit Facilities and the Notes (in thousands):

	Revolving Credit Facility		3.75% Convertible Notes due 2022			3.75% Convertible Notes due 2026			Term Loan Facility			Total
Carrying amount of equity conversion component	$	—	$	134		$	25,944		$	—		$	26,078
Principal amount	$	20,000	$	2,865		$	100,000		$	80,000		$	202,865
Unamortized debt costs		—		(34	)		(2,175	)		(1,303	)		(3,512	)
Unamortized debt discount		—		(119	)		(25,437	)		—			(25,556	)
Net carrying amount	$	20,000	$	2,712		$	72,388		$	78,697		$	173,797
Reported as:
Short-term debt												$	3,790
Long-term debt													170,007
Total debt												$	173,797

A summary of interest expense on the New Credit Facilities and the Notes is as follows (in thousands):

	Year ended June 30,
	2021		2020		2019
Interest expense related to contractual interest coupon	$	10,590	$	12,373	$	10,185
Interest expense related to amortization of debt discount		4,887		4,168		3,370
Interest expense related to amortization of debt issuance costs		1,356		1,350		1,529
Interest expense related to extinguishment of debt		9,948		—		—
Total	$	26,781	$	17,891	$	15,084

Shareholders' Equity

12 Months Ended

Jun. 30, 2021

Stockholders Equity Note [Abstract]

Shareholders' Equity

Note 11. Shareholders’ Equity

At June 30, 2021, the Company had 10.2 million shares of common stock reserved for issuance under the stock incentive plans and the employee stock purchase plan.

Share Repurchase

On May 5, 2021, the Board of Directors authorized a repurchase of an aggregate amount of the Company common stock not to exceed $18 million. On May 7, 2021, the Company completed a repurchase of 3,108,369 shares of its common stock for an aggregate amount of $14.1 million. Repurchased shares are reclassified as authorized and issued shares of common stock. The Company’s common stock is reduced by an amount equal to the number of shares being repurchased multiplied by the par value of such shares. The excess amount that is repurchased over its par value is first allocated as a reduction to additional paid-in capital based on the initial public offering price of the Company’s common stock.

Stock Incentive Plan and Employee Stock Purchase Plan

12 Months Ended

Jun. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Incentive Plan and Employee Stock Purchase Plan

Note 12. Stock Incentive Plan and Employee Stock Purchase Plan

As of June 30, 2021, the Company had three outstanding stock incentive plans: the 2016 Equity Incentive Plan, or the 2016 Plan; the 2007 Incentive Award Plan, or the 2007 Plan; and the 1998 Stock Incentive Plan, or the 1998 Plan. The 2016 Plan permits the granting of stock options, stock appreciation rights, restricted stock awards, performance shares, performance units, and restricted stock units, or RSUs. The vesting of RSUs granted under the 2016 Plan are primarily service‑based (over the requisite service period) while the vesting of performance units granted under the 2016 Plan are primarily performance‑based, or PSUs, or market‑based, or MSUs. Only employees of the Company are eligible to receive incentive stock options. Non‑employees may be granted non‑qualified stock options.

Stock options granted under the 2016 Plan have an exercise price of at least 100% of the fair market value of the underlying stock on the grant date. The stock options have 10 year contractual terms and generally become exercisable for 25% of the option shares one year from the date of grant and then ratably over the following 36 months. Service‑based RSUs granted under the equity plans generally vest 25% of the share units covered by the grant on each of the first through fourth anniversaries of the date of the grant, subject to the continued service of the grantee through each such date. However, certain of the outstanding RSUs under our equity plans vest 50% upon the first anniversary year of the grant date, and 50% upon the second anniversary year of the grant date. The Board of Directors has the discretion to use different vesting schedules.

As of June 30, 2021, the 2007 Plan and the 1998 Plan each continued to remain in effect; however, the Company can no longer grant equity awards under such plans.

The following table summarizes the share‑based compensation charges included in the Company’s consolidated statements of operations and comprehensive income (loss) (in thousands):

	Years ended June 30,
	2021		2020		2019
Cost of revenue	$	1,296	$	1,244	$	1,666
Research and development		1,348		1,457		1,773
Selling and marketing		1,457		1,159		2,081
General and administrative		5,231		4,292		5,081
Total	$	9,332	$	8,152	$	10,601

The amount of capitalized share‑based compensation costs as components of inventory was insignificant at June 30, 2021, 2020 and 2019.

Stock Options

The fair value of each option is estimated at the date of grant using the Black‑Scholes option pricing formula with the following assumptions:

	Years Ended June 30,
	2021			2020			2019
Risk–free interest rate	0.59% - 1.27%			1.14% - 1.53%			1.94% - 2.81%
Dividend yield		—	%		—	%		—	%
Expected term	6.72 - 6.88			5.63 - 5.64			5.31 - 5.51
Expected volatility	54.7% - 55.6%			47.3% - 48.9%			47.0% - 47.1%

Determining Fair Value of Stock Options

The fair value of each grant of stock options was determined by the Company using the methods and assumptions discussed below. Each of these inputs is subjective and generally requires significant judgment to determine.

Valuation and Amortization Method—The Company estimates the fair value of its stock options using the Black‑Scholes option‑pricing model. This fair value is then amortized over the requisite service periods of the awards.

Expected Term—The Company estimates the expected term of stock option by taking the average of the vesting term and the contractual term of the option, as illustrated by the simplified method.

Expected Volatility—The expected volatility is derived from the Company’s historical stock volatility over a period approximately equal to the expected term of the options.

Risk‑Free Interest Rate—The risk‑free interest rate is based on the U.S. Treasury yield curve on the date of grant.

Dividend Yield—The dividend yield assumption is based on the Company’s history and expectation of no dividend payouts.

A summary of option activity under the Company’s incentive plan during the fiscal years is presented below (in thousands except per share and term amounts):

	Options Outstanding			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (In Years)		Aggregate Intrinsic Value
Balance at June 30, 2018		2,684		$	5.26		6.16	$	60
Options granted		3,359			4.09
Options exercised		(115	)		4.26
Options forfeited/expired		(708	)		5.51
Balance at June 30, 2019		5,220			4.50		7.97	$	11
Options granted		2,305			2.64
Options exercised		—			—
Options forfeited/expired		(1,569	)		4.36
Balance at June 30, 2020		5,956			3.82		8.04	$	—
Options granted		1,526			4.48
Options exercised		(209	)		4.09
Options forfeited/expired		(243	)		4.40
Balance at June 30, 2021		7,030			3.93		7.66	$	5,036
Vested or Expected to vest at June 30, 2021		6,455			3.94		7.55
Exercisable at June 30, 2021		3,417		$	4.09		6.63	$	2,359

The aggregate intrinsic value in the table above represents the total pre‑tax intrinsic value (the difference between the fair value of the Company’s common stock on June 30, 2021 of $4.52 and the exercise price of the options that would have been received by option holders if all options exercisable had been exercised on June 30, 2021). The total intrinsic value of options exercised in the years ended June 30, 2021, 2020 and 2019 was approximately $0.2 million, $0 million and $0.1 million, respectively.

During the years ended June 30, 2021, 2020 and 2019, the Company recognized $2.4 million, $2.0 million and $1.4 million, respectively, of share‑based compensation expense for stock options granted to employees.

Tax benefits from tax deductions for exercised options and disqualifying dispositions in excess of the deferred tax asset attributable to stock compensation costs for such options are credited to additional paid‑in capital. The benefits are recognized against income taxes. Realized excess tax benefits related to stock options exercises was zero for each of the years ended June 30, 2021, 2020 and 2019.

As of June 30, 2021, there was approximately $7.2 million of unrecognized compensation cost net of estimated forfeitures, related to unvested stock options, which is expected to be recognized over a weighted average period of 2.57 years.

The following table summarizes information about outstanding and exercisable options at June 30, 2021 (in thousands, except years and exercise price):

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Outstanding		Weighted Average Exercise Price
$2.60 – 2.60		1,729		8.34	$	2.60		720	$	2.60
$2.96 – 4.01		654		7.08		3.55		434		3.77
$4.10 – 4.10		2,393		7.42		4.10		1,546		4.10
$4.23 – 4.52		1,432		9.49		4.47		2		4.23
$4.64 – 7.7		822		4.18		5.62		715		5.75
Total Outstanding		7,030		7.66		3.93		3,417	$	4.09

Restricted Stock

The following table summarizes the activity of RSUs, PSUs and MSUs (in thousands, except fair value per share):

Unvested Restricted Stock	Restricted Stock Units			Performance Stock Units			Market Stock Units			Total Number of Shares Underlying Stock Awards			Weighted Average Grant Date Fair Value Per Share
Unvested at June 30, 2018		3,700			63			1,397			5,160		$	5.03
Granted		1,386			—			—			1,386			3.68
Vested		(1,481	)		(10	)		—			(1,491	)		5.44
Cancelled/Forfeited		(521	)		(53	)		(756	)		(1,330	)		5.10
Unvested at June 30, 2019		3,084			—			641			3,725			4.34
Granted		2,009			419			—			2,428			2.74
Vested		(1,579	)		—			—			(1,579	)		4.62
Cancelled/Forfeited		(343	)					(470	)		(813	)		3.96
Unvested at June 30, 2020		3,171			419			171			3,761			3.26
Granted		1,738			280			—			2,018			4.16
Vested		(1,452	)		—			—			(1,452	)		3.52
Cancelled/Forfeited		(539	)		(419	)		(171	)		(1,129	)		3.20
Unvested at June 30, 2021		2,918			280			-			3,198		$	3.73

As of June 30, 2021, there was approximately $8.7 million of unrecognized compensation cost, net of estimated forfeitures, related to restricted stock, which is expected to be recognized over a weighted average period of 2.02 years.

Restricted Stock Units

The Company recognized $5.4 million, $4.9 million and $7.2 million of share‑based compensation expense, net of estimated forfeitures, related to RSUs during the years ended June 30, 2021, 2020 and 2019. The weighted average grant date fair value per share of RSUs was $4.16, $2.74 and $3.68 for the years ended June 30, 2021, 2020

and 2019, respectively. The aggregate fair market value of RSUs that vested during the year ended June 30, 2021 was $5.8 million.

Performance Stock Units

The Compensation Committee approved the grant of 280,000, 419,000 and zero PSUs to select employees of the Company in the years ended June 30, 2021, 2020 and 2019, respectively. Of these PSUs, 10,000 were vested in the year ended June 30, 2019 due to the achievement of the requisite performance targets. No PSUs vested in the years ended June 30, 2021 and June 30, 2020. During the years ended June 30, 2021, 2020 and 2019, 419,000, zero and 53,000 PSUs were cancelled, respectively.

The Company recognized $0 expense or benefit and an expense of $0.1 million, of share‑based compensation expense, net of estimated forfeitures, related to PSUs during the years ended June 30, 2021, 2020, and 2019, respectively.

Market Stock Units

The Compensation Committee approved the performance equity program, referred to as the market stock unit program, or MSU program, in October 2012. The Company’s MSU Program uses the Russell 2000 index as a performance benchmark and requires that the Company’s total stockholder return match or exceed that of the Russell 2000. Based on a sliding scale of how much the Company’s total stockholder return outperforms the Russell 2000 benchmark, the participating executives can earn up to a maximum of 150% of the target number of shares over two measurement periods. The Company uses a Monte Carlo simulation to calculate the fair value of the award on the grant date. The Compensation Committee approved the grant of 0.6 million MSUs to select employees of the Company in the year ended June 30, 2019 and none were granted for the years ended June 30, 2021 and 2020. Of these MSUs, no shares vested in the years ending June 30, 2021, 2020 and 2019, respectively, due to the non-achievement of the requisite performance target against the Russell 2000 index while 0.2 million, 0.5 million and 0.8 million MSUs were cancelled in the years ended June 30, 2021, 2020 and 2019, respectively.

The Company recognized $0.1 million, $0.2 million and $1.0 million of share‑based compensation expense, net of estimated forfeitures, related to MSUs during the years ended June 30, 2021, 2020 and 2019, respectively. There were no MSUs granted during the years ended June 30, 2021, 2020 and 2019. As of June 30, 2021, there was no unrecognized compensation cost related to MSUs.

Employee Stock Purchase Plan

Under the Company’s Amended and Restated 2007 Employee Stock Purchase Plan, or ESPP, qualified employees are permitted to purchase the Company’s common stock at 85% of the lower of the fair market value of the common stock on the commencement date of each offering period or the fair market value on the specified purchase date. Employees’ payroll deductions may not exceed 10% of their salaries. Employees may purchase up to 2,500 shares per period provided that the value of the shares purchased in any calendar year may not exceed $25,000, as calculated pursuant to the purchase plan.

The Company estimates the fair value of ESPP shares at the date of grant using the Black‑Scholes option pricing model. The weighted average assumptions were as follows:

	Years Ended June 30,
	2021	2020	2019
Risk–free interest rate	0.04% - 0.1%	0.17% - 1.60%	2.11% - 2.72%
Dividend yield	—%	—%	—%
Expected term	0.5 - 1.0	0.5 - 1.0	0.5 - 1.0
Expected volatility	36.10% - 65.58%	45.46% - 75.21%	30.9% - 60.0%

The risk‑free rate for the expected term of the ESPP option was based on the U.S. Treasury Constant Maturity rate for each offering period; expected volatility was based on the historical volatility of the Company’s common stock; and the expected term was based upon the offering period of the ESPP. For the years ended June 30, 2021, 2020 and 2019, the Company recognized $1.4 million, $1.1 million and $1.1 million, respectively, of compensation expense related to its ESPP.

The Company issued 1.2 million, 1.1 million and 0.9 million shares under the ESPP during fiscal 2021, 2020 and 2019, respectively, at a weighted average price per share of $1.9, $2.16 and $3.31, respectively. As of June 30, 2021, total unrecognized compensation cost related to the ESPP plan was $0.7 million, which the Company expects to recognize over a weighted average period of 0.5 years.

Joint Venture

12 Months Ended

Jun. 30, 2021

Equity Method Investments And Joint Ventures [Abstract]

Joint Venture

Note 13. Joint Venture

In January 2019, the Company’s wholly-owned subsidiary, Accuray Asia Limited (“Accuray Asia”), entered into an agreement with CNNC High Energy Equipment (Tianjin) Co., Ltd. (the “CIRC Subsidiary”), a wholly-owned subsidiary of China Isotope & Radiation Corporation, to form a joint venture, CNNC Accuray (Tianjin) Medical Technology Co. Ltd. (the “JV”), to manufacture and sell radiation oncology systems in China.

In exchange for the 49% equity interest in the JV, the Company, through Accuray Asia, made in-kind capital contributions consisting of two full radiation oncology systems from the Company’s inventory in the quarter ended December 31, 2019. The investment is reported as an Investment in joint venture on the Company’s consolidated balance sheets. The Company recognized a gain of $13.0 million related to the value of the capital contribution to the JV. This gain was recorded as non-operating, other income in the year ended June 30, 2020.

The Company applies the equity method of accounting to its ownership interest in the JV as the Company has the ability to exercise significant influence over the JV but lacks controlling financial interest and is not the primary beneficiary. The Company recognizes the 49% proportionate share of the JV income or loss on a one-quarter lag due to the timing of the availability of the JV’s financial records The Company recognizes revenue on sales to the JV in the current period, eliminating a portion of profit to the extent goods sold have not been sold through by the JV to an end customer at the end of such reporting period. The Company deferred $2.1 million and $1.8 million of intra-entity profit margin as of June 30, 2021 and June 30, 2020, respectively. During the year ended June 30, 2021, the Company recognized $1.8 million of previously deferred intra-entity profit margin from sales and recorded intra-entity profit margin deferral of $2.1 million from sales executed during the period. The Company’s consolidated accumulated deficit includes $0.9 million of accumulated income related to the Company’s equity method investment.

As of June 30, 2021, the Company had a carrying value of $15.9 million in the JV and owned a 49% interest in the entity. The Company’s proportional share of the underlying equity in net assets of the JV was approximately $13.7 million. The difference of $2.2 million increased by $2.1 million eliminated intra-entity profit constitutes equity method goodwill of $4.4 million at June 30, 2021 including $0.1 million impact of foreign currency exchange and is subject to impairment analysis. No impairment was identified as of June 30, 2021.

Summarized financial information of the JV is based one-quarter lag due to the timing of the availability of the JV’s financial records is as follows (in thousands):

	Twelve Months Ended March 31, 2021		Six Months Ended March 31, 2020
Statement of Operations Data:
Revenue	$	33,054	$	13,764
Gross Profit	$	10,578	$	2,960
Net income (loss)	$	1,785	$	(306	)
Net income (loss) attributable to the Company	$	872	$	(149	)

	As of March 31, 2021		As of March 31, 2020
Summarized Balance Sheet Data:
Assets
Current assets	$	24,703	$	16,776
Non current assets		23,089		16,125
	$	47,792	$	32,901
Liabilities and Stockholders' Equity
Current liabilities	$	16,854	$	9,064
Non current liabilities		1,467		1,412
Stockholder's equity		29,471		22,425
	$	47,792	$	32,901

Income Taxes

12 Months Ended

Jun. 30, 2021

Income Tax Disclosure [Abstract]

Income Taxes

Note 14. Income Taxes

Income (loss) before provision for income taxes on the accompanying statements of operations and comprehensive loss included the following components (in thousands):

	Years Ended June 30,
	2021			2020			2019
Domestic	$	(8,448	)	$	(1,811	)	$	(23,799	)
Foreign		3,889			7,501			9,455
Total worldwide	$	(4,559	)	$	5,690		$	(14,344	)

The provision for income taxes consisted of the following (in thousands):

	Years Ended June 30,
	2021			2020		2019
Current:
Federal	$	—		$	—	$	—
State		17			15		32
Foreign		1,849			1,495		2,140
Total current	$	1,866		$	1,510	$	2,172
Deferred:
Federal		—			—		—
State		—			—		—
Foreign		(114	)		353		(86	)
Total deferred		(114	)		353		(86	)
Total provision for income taxes	$	1,752		$	1,863	$	2,086

A reconciliation of income taxes at the statutory federal income tax rate to the provision for income taxes included in the accompanying consolidated statements of operations and comprehensive loss is as follows (in thousands):

	Years Ended June 30,
	2021			2020			2019
U.S. federal taxes (benefit):
At federal statutory rate	$	(958	)	$	1,195		$	(3,012	)
State tax, net of federal benefit		17			15			32
Share-based compensation expense		879			810			1,128
Debt extinguishment		898			—			—
Other non-deductible permanent items		155			418			486
R&D credits		(1,278	)		(635	)		(877	)
Foreign taxes		918			273			(38	)
Other		(57	)		(69	)		58
Global Intangible Low-Taxed Income		243			1,185			1,924
Change in valuation allowance		935			(1,329	)		2,385
Total	$	1,752		$	1,863		$	2,086

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s net deferred tax assets were as follows (in thousands):

	June 30,
	2021			2020
Deferred tax assets:
Federal and state net operating losses	$	75,033		$	75,615
Accrued expenses and reserves		6,597			4,972
Lease liability		4,258			5,366
Deferred revenue		5,093			5,038
R&D Credits		24,340			22,843
Share-based compensation expense		1,096			1,337
Capitalized research and development		2,088			2,683
Unicap		1,827			2,105
Fixed assets/intangibles		1,055			1,199
Section 163(j) interest		1,817			1,823
Other		1,082			1,290
Total deferred tax assets		124,286			124,271
Deferred tax liabilities:
Contract acquisition costs		(1,174	)		(977	)
Right of use assets		(3,533	)		(4,508	)
Debt		(5,612	)		—
Total deferred tax liabilities		(10,319	)		(5,485	)
Valuation allowance		(113,476	)		(118,300	)
Net deferred tax assets	$	491		$	486

As of June 30, 2021, the Company had approximately $321.3 million and $132.2 million in federal and state net operating loss carryforwards, respectively. The federal and state carryforwards expire in varying amounts beginning in 2025 for federal and 2022 for state purposes.

In addition, as of June 30, 2021, the Company had federal and state research and development tax credits of approximately $24.6 million and $21.0 million, respectively. If not utilized, the federal research credits will begin to expire in 2022, the California research credits have no expiration date, and the other state research credits will begin to expire in 2022.

Under the Internal Revenue Code (“IRC”) Sections 382 and 383, annual use of our net operating loss and research tax credit carryforwards to offset taxable income may be limited based on cumulative changes in ownership. Although ownership changes have occurred in the past, the carryovers should be available for utilization by the Company before they expire, provided the Company generates sufficient future taxable income. There were no equity financings in the current fiscal year that would result in an ownership change under Section 382. The Company will continue to monitor the changes in equity that would affect the tax attributes as reported.

Based on the available objective evidence and history of losses, the Company has established a 100% valuation allowance against its combined domestic net assets because of uncertainty surrounding the realization of such deferred tax assets.

In March 2020, the Coronavirus Aid, Relief and Economic Security Act (the "CARES Act") was signed into law in the United States. The provisions of the CARES Act did not have a material impact on the Company’s effective tax rate and consolidated financial statements given the Company's full valuation allowance against its net U.S. deferred tax assets.

Beginning fiscal year 2019, for U.S. federal tax purposes certain income earned by controlled foreign corporations (“CFCs”) must be included currently in the gross income of the CFC’s U.S. shareholder. The income required to be included in gross income is referred to as global intangible low tax income (“GILTI”) and is defined under IRC Section 951A as the excess of the shareholder’s net CFC tested income over the net deemed tangible income return. The GILTI inclusion amount has been absorbed by net operating losses. The Company has made a policy decision to record GILTI tax as a current-period expense when incurred.

The Tax Act also enacted the Base Erosion and Anti-Abuse Tax (“BEAT”). The BEAT minimum tax under IRC Section 59A is applicable to the extent that the BEAT tax amount is greater than the regular corporate tax for a given year. This tax is applicable to companies with prior 3-year average annual gross receipts exceeding $500 million. The Company does not currently meet this threshold since its current average annual gross receipts is less than $500 million.

The Company continues to permanently re-invest its $46.3 million undistributed earnings of its foreign subsidiaries outside the U.S. Future repatriation of the Company's foreign earnings are subject to income tax withholdings. Any potential deferred tax liability would net with the Company’s valuation allowance.

The aggregate changes in the balance of gross unrecognized tax benefits were as follows (in thousands):

	Years Ended June 30,
	2021			2020			2019
Balance at beginning of year	$	16,996		$	16,280		$	15,299
Tax positions related to current year:
Additions		1,433			954			934
Tax positions related to prior years:
Additions		786			286			580
Reductions		(450	)		(524	)		(533	)
Balance at end of year	$	18,765		$	16,996		$	16,280

The calculation of unrecognized tax benefits involves dealing with uncertainties in the application of complex global tax regulations. Management regularly assesses the Company’s tax positions with respect to legislative, bilateral tax treaty, regulatory and judicial developments in the countries in which the Company does business. The reduction in prior year’s tax positions primarily relates to lapses of applicable statutes of limitations. The Company anticipates that except for $0.02 million in uncertain tax positions that may be reduced related to the lapse of various statutes of limitation, there will be no material changes in uncertain tax positions in the next 12 months. As of June 30, 2021, the amount of gross unrecognized tax benefits was $18.8 million of which $18.6 million would not affect income tax expense before consideration of any valuation allowance.

The Company’s practice is to recognize interest and/or penalties related to income tax matters in income tax expense. As of June 30, 2021 and 2020, the Company had approximately $0.05 million and $0.04 million, respectively, of cumulative accrued interest and penalties related to uncertain tax positions.

The Company files income tax returns in the United States federal, various states and foreign jurisdictions. Due to tax attributes being carried forward and utilized during open years, the statute of limitations remains open for the U.S. federal jurisdiction and domestic states for tax years from 2001 and forward. The statutes of limitation with respect to the foreign jurisdictions where the Company files income tax returns vary from jurisdiction to jurisdiction and range from 3 to 10 years, and the material foreign jurisdictions are France, Switzerland, and Japan.

The Company is also subject to examination of its income tax returns by the Internal Revenue Service (IRS) and other foreign tax authorities, and in some cases the Company has received additional tax assessments which have not been significant.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plan

12 Months Ended

Jun. 30, 2021

Employee Benefit Plan

Note 15. Employee Benefit Plan

The Company’s employee savings and retirement plan is qualified under Section 401(k) of the United States Internal Revenue Code. Employees may make voluntary, tax‑deferred contributions to the 401(k) Plan up to the statutorily prescribed annual limit. The Company makes discretionary matching contributions to the 401(k) Plan on behalf of employees up to the limit determined by the Board of Directors. The Company contributed $1.1 million, $2.0 million and $2.1 million to the 401(k) Plan during the years ended June 30, 2021, 2020 and 2019, respectively.

The entire disclosure for retirement benefits.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Defined Benefit Pension Obligation Disclosure [Abstract]

Defined Benefit Pension Obligation

12 Months Ended

Jun. 30, 2021

Defined Benefit Pension Obligation

Note 16. Defined Benefit Pension Obligation

The Company has established a defined benefit pension plan for its employees in its Switzerland subsidiary. The plan provides benefits to employees upon retirement, death or disability. The Company uses June 30 as the year‑end measurement date for this plan. The unfunded liability of $4.3 million was recognized in long‑term other liabilities in the accompanying balance sheet as of June 30, 2021. Actuarial gain of $0.8 million was recognized in other comprehensive loss in fiscal 2021.

Obligations and Funded Status

The following table presents the funded status of the defined benefit pension plan (in thousands):

	June 30,
	2021			2020
Change in benefit obligation:
Benefit obligation—beginning of fiscal year	$	18,426		$	17,577
Service cost		1,766			2,003
Interest cost		38			62
Plan participants’ contributions		1,676			2,886
Plan amendment		25			975
Actuarial (gain)/loss		(807	)		(615	)
Foreign currency changes		281			545
Benefit and expense payments		(2,700	)		(5,007	)
Benefit obligation—end of fiscal year	$	18,705		$	18,426
Change in plan assets:
Plan assets—beginning of fiscal year	$	13,958		$	14,228
Employer contributions		1,117			1,327
Actual return on plan assets		199			112
Plan participants’ contributions		1,676			2,885
Foreign currency changes		169			413
Benefit and expense payments		(2,700	)		(5,007	)
Plan assets—end of fiscal year	$	14,419		$	13,958
Funded status	$	(4,286	)	$	(4,468	)
Amounts recognized within the consolidated balance sheets:
Assets	$	—		$	—
Long-term other liabilities		(4,286	)		(4,468	)
Net amount recognized	$	(4,286	)	$	(4,468	)

The following table presents the amounts recognized in accumulated other comprehensive loss (before tax) for the defined benefit pension plan (in thousands):

	June 30,
	2021			2020
Net loss	$	(1,236	)	$	(1,000	)
Total recognized in other comprehensive income (loss)		872			(236	)
Accumulated other comprehensive loss	$	(364	)	$	(1,236	)

The following table presents the projected benefit obligation, accumulated benefit obligation and fair value of plan assets for this defined benefit pension plan where accumulated benefit obligation exceeded the fair value of plan assets (in thousands):

	June 30,
	2021		2020
Projected benefit obligation	$	18,705	$	18,426
Accumulated benefit obligation	$	16,891	$	16,175
Fair value of plan assets	$	14,419	$	13,958

Components of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Loss

The following table shows the components of the Company’s net periodic benefit costs and the other amounts recognized in other comprehensive loss, before tax, related to the Company’s defined benefit pension plan (in thousands):

	Year ended June 30,
	2021			2020			2019
Net Periodic Benefit Costs:
Service cost	$	1,766		$	2,003		$	1,865
Interest cost		38			62			128
Expected returns on assets		(142	)		(151	)		(170	)
Amortization of prior service cost		54			(2	)		(55	)
Amortization of net loss		—			—			—
Settlement charges		—			178			—
Net periodic benefit costs		1,716			2,090			1,768
Other Amounts Recognized in Other Comprehensive Loss:
Net (gain) loss arising during the year		(850	)		(593	)		801
Prior service cost		(54	)		2			—
Amortization of prior service cost		24			1,005			55
Amortization of net gain		—			—			—
Effect of settlement		8			(178	)		—
Total recognized in other comprehensive (gain) loss		(872	)		236			856
Total recognized in net periodic benefit costs and other comprehensive loss	$	844		$	2,326		$	2,624

The amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost during fiscal year 2021 related to the Company’s defined benefit pension plan are as follows (in thousands):

	2022
Net loss	$	(188	)
Prior service credit		479
Accumulated other comprehensive loss	$	291

Assumptions

The assumptions used to determine net periodic benefit cost and to compute the expected long‑term return on assets for the Company’s defined benefit pension plan were as follows:

	Fiscal Years
	2021			2020			2019
Net Periodic Benefit Costs:
Discount rate		0.40	%		0.25	%		0.45	%
Rate of compensation increase		1.50	%		1.50	%		1.50	%
Expected long-term return on assets		1.00	%		1.00	%		1.20	%

The assumptions used to measure the benefit obligation for the Company’s defined benefit pension plan were as follows:

	June 30,
	2021			2020
Benefit Obligation:
Discount rate		0.40	%		0.25	%
Rate of compensation increase		1.50	%		1.50	%

Estimated Contributions and Future Benefit Payments

The Company made contributions of approximately $1.1 million, $1.3 million and $1.4 million to the defined benefit pension plan during fiscal years 2021, 2020 and 2019 respectively. The Company expects total contributions to the defined benefit pension plan for fiscal year 2022 will be approximately $1.1 million.

Estimated future benefit payments expected to be paid by the defined benefit pension plan at June 30, 2021 are as follows (in thousands):

Year Ending June 30,	Future Benefits
2022	$	891
2023		891
2024		889
2025		1,062
2026		903
Thereafter		6,280
Total	$	10,916

Plan Assets

The plan assets are invested in insurance contracts with Copré Collective Foundation based in Lausanne, Switzerland at the end of fiscal years 2021 and 2020, respectively. In fiscal 2021, the risks of death and disability are reinsured with Zurich Life Insurance. The Copré Foundation for Occupational Benefits defines and is responsible for the asset strategy and invests the plan assets for the Company. In fiscal 2021 and 2020 the guaranteed interest rate for mandatory retirement savings was 1.00% for both years. The technical administration and management of the savings account are guaranteed by the Copré Foundation for Occupational Benefits. Insurance benefits due are paid directly to the entitled persons by the Copré Foundation for Occupational Benefits. Accuray International Sàrl has committed itself to pay the annual contributions and costs due under the pension fund regulations.

The contract of affiliation between the Company and the Copré Collective Foundation can be terminated by either side. In the event of a termination, recipients of retirement and survivors’ benefits would remain with the collective foundation. The Company commits itself to transfer its active insured members and recipients of disability benefits to the new employee benefits institution, thus releasing the Copré Collective Foundation from all obligations.

Segment Disclosure

12 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Segment Disclosure

Note 17. Segment Disclosure

The Company has one operating and reporting segment (oncology systems group), which develops, manufactures and markets proprietary medical devices used in radiation therapy for the treatment of cancer patients. The Company’s Chief Executive Officer, its Chief Operating Decision Maker, reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance. The Company does not assess the performance of its individual product lines on measures of profit or loss, or asset based metrics. Therefore, the information below is presented only for revenues and long‑lived tangible assets by geographic areas.

Revenues attributed to a country or region is based on the shipping addresses of the Company’s customers. The following summarizes revenue by geographic region (in thousands):

	Years ended June 30,
	2021		2020		2019
Americas	$	105,878	$	128,562	$	135,683
Europe, Middle East, India and Africa		121,568		119,989		149,095
Asia Pacific, excluding Japan and China		26,425		31,297		44,136
Japan		62,636		72,688		70,214
China		79,782		30,392		19,657
Total	$	396,289	$	382,928	$	418,785

Revenues attributed to a country or region is based on the shipping addresses of the Company’s customers. The following summarizes revenue by geographic region (in thousands):

Information regarding geographic areas in which the Company has long‑lived tangible assets is as follows (in thousands):

	June 30, 2021		June 30, 2020
Americas	$	10,588	$	12,807
Europe, Middle East, India and Africa		265		373
Asia Pacific, excluding Japan and China		170		126
Japan		701		1,183
China		608		860
Total	$	12,332	$	15,349

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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Restructuring And Related Activities [Abstract]

Restructuring Charges

12 Months Ended

Jun. 30, 2021

Restructuring Charges

Note 18. Restructuring Charges

The Company incurred no restructuring charges for the year ended June 30, 2021.

On May 27, 2020, the Company informed affected employees of a cost saving initiative designed to reduce operating costs through the elimination of approximately 3 percent of its global workforce. These restructuring charges of $1.1 million were recorded in cost of goods sold and operating expenses in the consolidated statements of operations, of which $0.5 million was paid during fiscal 2020 and $0.6 million is accrued in the consolidated balance sheet as of June 30, 2020.

In October 2018, the Company informed affected employees of a cost savings initiative designed to reduce operating costs through the elimination of approximately 5 percent of its global workforce. These restructuring charges of $1.5 million were recorded in cost of goods sold and operating expenses in the consolidated statements of operations, of which $1.0 million was paid during fiscal 2019 and $0.5 million is accrued in the consolidated balance sheet as of June 30, 2019, the remainder was paid in fiscal year 2020.

Subsequent Events

12 Months Ended

Jun. 30, 2021

Subsequent Events [Abstract]

Subsequent Events

Note 19. Subsequent Events

The Company has evaluated subsequent events through the filing of this Annual Report on Form 10-K and determined that there have been no events that have occurred that would require adjustments to our disclosures in the consolidated financial statements.

Quarterly Financial Data (unaudited)

12 Months Ended

Jun. 30, 2021

Quarterly Financial Data [Abstract]

Quarterly Financial Data (unaudited)

Note 20. Quarterly Financial Data (unaudited)

The following table provides the selected quarterly financial data for fiscal 2021 and 2020 (in thousands, except net income (loss) per share amounts:

	Quarters ended
	September 30, 2020		December 31, 2020		March 31, 2021			June 30, 2021
Net revenue	$	85,332	$	97,456	$	102,562		$	110,936
Gross profit	$	35,403	$	40,831	$	39,542		$	43,731
Net Income (loss)	$	402	$	4,769	$	(390	)	$	(11,092	)
Net income (loss) per share - basic	$	0.00	$	0.05	$	(0.00	)	$	(0.12	)
Net income (loss) per share - diluted	$	0.00	$	0.05	$	(0.00	)	$	(0.12	)
Weighted average common shares used in computing net income (loss) per share:
Basic		91,194		92,025		93,123			91,613
Diluted		91,681		93,353		93,123			91,613

	Quarters ended
	September 30, 2019			December 31, 2019		March 31, 2020		June 30, 2020
Net revenue	$	89,577		$	98,826	$	99,548	$	94,977
Gross profit	$	32,943		$	37,900	$	39,133	$	39,745
Net income loss	$	(9,356	)	$	10,710	$	2,625	$	(152	)
Net loss per share—basic and diluted	$	(0.11	)	$	0.12	$	0.03	$	(0.00	)
Weighted average common shares used in computing net income (loss) per share:
Basic		88,772			89,517		90,476		90,748
Diluted		88,772			90,279		90,855		90,748

The Company and its Significant Accounting Policies (Policies)

12 Months Ended

Jun. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Basis of Presentation and Principles of Consolidation

Risks and Uncertainties

Use of Estimates

Foreign Currency

Fair Value Measurements

Cash and Cash Equivalents

Concentration of Credit Risk and Other Risks and Uncertainties

Customer Advances

Customer advances represent payments made by customers in advance of product shipment. In general, customer advances are required for a contract to be recognized in our backlog.

Property and Equipment

Software Capitalization Costs

Impairment of Long-Lived Assets

Impairment of Long‑Lived Assets

Goodwill and Purchased Intangible Assets

Shipping and Handling

Advertising Expenses

Research and Development Costs

Share-Based Compensation

Share‑Based Compensation

Loss Contingencies

Net Income (Loss) Per Common Share

A reconciliation of the numerator and denominator used in the calculation of basic and diluted net income (loss) per share attributable to stockholders follows (in thousands):

	Years Ended June 30,
	2021			2020		2019
Numerator:
Net income (loss) used to compute basic and diluted loss per share	$	(6,311	)	$	3,827	$	(16,430	)
Denominator:
Weighted average shares used to compute basic income (loss) per share		92,031			89,874		87,465
Weighted average shares used to compute diluted income (loss) per share		92,031			90,623		87,465

The following table sets forth all potentially dilutive securities excluded from the computation in the table above when their effect would have been anti‑dilutive (in thousands):

	As of June 30,
	2021		2020		2019
Stock options		7,030		5,956		5,220
RSUs, PSUs and MSUs		3,198		3,761		3,725
		10,228		9,717		8,945

Outstanding Convertible Notes—Diluted Share Impact

Leases

Equity Method Investment

Income Taxes

Accumulated Other Comprehensive Income (Loss)

Recent Accounting Pronouncements (Policies)

12 Months Ended

Jun. 30, 2021

Accounting Pronouncement Recently Adopted

Accounting Pronouncements

Accounting Pronouncement Recently Adopted

Accounting Pronouncements Not Yet Effective

Accounting Pronouncements

Accounting Pronouncements Not Yet Effective

Upon adoption of ASU 2020-06, the Company expects the following significant accounting changes:

ii.

The Company currently estimates the adoption of ASU 2020-06 will impact the opening consolidated balance sheet as follows (in thousands):


Consolidated Balance Sheet	June 30, 2021			Effect of Adoption ASU 2020-06			July 1, 2021 As Adjusted
Convertible senior notes, net		75,100			24,784			99,884
Additional paid-in-capital		554,680			(25,634	)		529,046
Accumulated deficit		(488,024	)		850			(487,174	)

The Company and its Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of reconciliation of the numerator and denominator used in the calculation of basic and diluted net income (loss) per common share

A reconciliation of the numerator and denominator used in the calculation of basic and diluted net income (loss) per share attributable to stockholders follows (in thousands):

	Years Ended June 30,
	2021			2020		2019
Numerator:
Net income (loss) used to compute basic and diluted loss per share	$	(6,311	)	$	3,827	$	(16,430	)
Denominator:
Weighted average shares used to compute basic income (loss) per share		92,031			89,874		87,465
Weighted average shares used to compute diluted income (loss) per share		92,031			90,623		87,465

Schedule of all potentially dilutive securities excluded from the computation of basic and diluted net income (loss) per common share

The following table sets forth all potentially dilutive securities excluded from the computation in the table above when their effect would have been anti‑dilutive (in thousands):

	As of June 30,
	2021		2020		2019
Stock options		7,030		5,956		5,220
RSUs, PSUs and MSUs		3,198		3,761		3,725
		10,228		9,717		8,945

Recent Accounting Pronouncements (Tables)

12 Months Ended

Jun. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Estimated Impact on Opening Consolidated Balance Sheets Due to Adoption of ASU 2020-06

The Company currently estimates the adoption of ASU 2020-06 will impact the opening consolidated balance sheet as follows (in thousands):


Consolidated Balance Sheet	June 30, 2021			Effect of Adoption ASU 2020-06			July 1, 2021 As Adjusted
Convertible senior notes, net		75,100			24,784			99,884
Additional paid-in-capital		554,680			(25,634	)		529,046
Accumulated deficit		(488,024	)		850			(487,174	)

Revenue (Tables)

12 Months Ended

Jun. 30, 2021

Revenue From Contract With Customer [Abstract]

Summary of Contract with Customer, Asset and Liability

Changes in the contract assets and contract liabilities are as follows:

	June 30, 2021		June 30, 2020		Change
(Dollars in thousands)	Amount		Amount		$			%
Assets:
Unbilled accounts receivable – current (1)	$	12,354	$	11,739		615			5
Interest receivable – current (2)		512		493		19			4
Long-term accounts receivable (3)		4,970		3,810		1,160			30
Interest receivable – non-current (3)		1,083		1,342		(259	)		(19	)
Liabilities:
Customer advances		24,937		22,571		2,366			10
Deferred revenue – current		81,660		83,207		(1,547	)		(2	)
Deferred revenue – non-current		23,685		24,125		(440	)		(2	)

(1)	Included in accounts receivable on consolidated balance sheets

(2)	Included in prepaid expenses and other current assets on consolidated balance sheets

(3)	Included in other assets on consolidated balance sheets

Schedule of Remaining Performance Obligations related to Warranty

	Fiscal years of revenue recognition
(Dollars in thousands)	2022		2023		2024		Thereafter
Long-term warranty and service	$	33,479	$	23,042	$	10,135	$	9,665

Supplemental Financial Information (Tables)

12 Months Ended

Jun. 30, 2021

Supplemental Financial Information Disclosure [Abstract]

Schedule of accounts receivable, net

Accounts receivable, net consisted of the following (in thousands):

	June 30, 2021			June 30, 2020
Accounts receivable	$	74,054		$	80,128
Unbilled fees and services		12,354			11,739
		86,408			91,867
Less: Allowance for credit losses		(1,048	)		(1,268	)
Accounts receivable, net	$	85,360		$	90,599

Schedule of financing receivables

A summary of the Company’s financing receivables is presented as follows (in thousands):

	June 30, 2021			June 30, 2020
Financing receivable	$	7,102		$	11,245
Allowance for credit losses		(943	)		(4,369	)
Total, net	$	6,159		$	6,876
Reported as:
Current	$	2,772		$	3,084
Non-current		3,387			3,792
Total, net	$	6,159		$	6,876

Schedule of inventories, net

Inventories consisted of the following (in thousands):

	June 30, 2021		June 30, 2020
Raw materials	$	45,301	$	48,037
Work-in-process		22,014		17,798
Finished goods		58,614		68,539
Inventories, net	$	125,929	$	134,374

Schedule of property and equipment, net

Property and equipment consisted of the following (in thousands):

	June 30, 2021			June 30, 2020
Furniture and fixtures	$	1,636		$	1,961
Computer and office equipment		8,972			10,896
Software		7,477			11,606
Leasehold improvements		26,102			26,206
Machinery and equipment		45,265			48,830
Construction in progress		1,055			623
		90,507			100,122
Less: Accumulated depreciation		(78,175	)		(84,773	)
Property and equipment, net	$	12,332		$	15,349

Schedule of components of accumulated other comprehensive income (loss)

The following table summarizes the changes in accumulated other comprehensive income (loss) by component (in thousands):

	Foreign Currency Items			Change in Defined Pension Benefit Obligation			Total
Balance at June 30, 2019	$	990		$	(1,000	)	$	(10	)
Other comprehensive loss		(238	)		(236	)		(474	)
Balance at June 30, 2020	$	752		$	(1,236	)	$	(484	)
Other comprehensive loss		1,705			872			2,577
Balance at June 30, 2021	$	2,457		$	(364	)	$	2,093

Schedule of consolidated statement of operations

Other expense, net consisted of the following (in thousands):

	Years Ended June 30,
(in thousands)	2021			2020			2019
Interest expense	$	(16,893	)	$	(18,080	)		(15,084	)
Foreign currency transaction loss		(1,953	)		(2,343	)		(665	)
Gain on contribution to joint venture		—			12,964			—
Loss on Debt Extinguishment		(9,948	)		—			—
Other expense, net		1,128			759			822
Total other expense, net	$	(27,666	)	$	(6,700	)	$	(14,927	)

Leases (Tables)

12 Months Ended

Jun. 30, 2021

Leases [Abstract]

Schedule of Operating Lease Right-of-use Assets and Operating Lease Obligation

Operating lease right-of-use assets and operating lease obligation are represented in the table below (in thousands):

	June 30, 2021			June 30, 2020
Beginning balance operating lease right-of-use asset (1)	$	28,647		$	30,578
Lease asset added		1,069			5,244
Amortization for the year		(7,194	)		(7,175	)
Ending balance operating lease right-of-use asset	$	22,522		$	28,647

Beginning balance operating lease obligation (1)	$	32,397		$	34,465
Lease liability added		1,069			5,244
Repayment and interest accretion		(7,857	)		(7,312	)
Ending balance operating lease obligation	$	25,609		$	32,397

Current portion of operating lease obligation	$	8,169		$	8,224
Noncurrent portion of operating lease obligation	$	17,441		$	24,173

(1)

June 30, 2020 beginning balance represents ASU 842 date of adoption as of July 1, 2019.

Schedule of Maturities of Operating Lease Liabilities

Maturities of operating lease liabilities as of June 30, 2021 are presented in the table below (in thousands):

Year Ending June 30,	Amount
2022	$	9,564
2023		8,906
2024		6,148
2025		3,163
2026		5
Total operating lease payments		27,786
Less: imputed interest		(2,177	)
Present value of operating lease liabilities	$	25,609

Goodwill and Purchased Intangible Assets (Tables)

12 Months Ended

Jun. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of goodwill and changes in the carrying amount of goodwill

Goodwill as of June 30, 2021 and 2020 and changes in the carrying amount of goodwill for the respective periods are as follows (in thousands):

	As of June 30,
	2021		2020
Balance at the beginning of the period	$	57,717	$	57,770
Currency translation adjustment		243		(53	)
Balance at the end of the period	$	57,960	$	57,717

Schedule of intangible assets associated with purchased patent license

The Company’s intangible assets associated with purchased patent license are as follows (in thousands):

		As of June 30, 2021							As of June 30, 2020
	Useful Lives	Gross Carrying Amount		Accumulated Amortization			Net Amount		Gross Carrying Amount		Accumulated Amortization			Net Amount
	(in years)
Patent license	2 - 7	$	1,170	$	(735	)	$	435	$	1,170	$	(507	)	$	663

Schedule of estimated future amortization expense of purchased intangible assets

The estimated future amortization expense of purchased intangible assets as of June 30, 2021 is as follows (in thousands):

Year Ending June 30,	Amount
2022	$	185
2023		143
2024		107
2025		—
	$	435

Derivative Financial Instruments (Tables)

12 Months Ended

Jun. 30, 2021

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Summary of outstanding forward currency exchange contracts

As of June 30, 2021 and 2020, the Company had the following outstanding forward currency exchange contracts (in notional amount):

	As of June 30,
(In thousands and U.S. dollars)	2021		2020
Canadian Dollar	$	527	$	—
Swiss Franc		8,891		—
Chinese Yuan		1,927		—
Euro		19,037		—
British Pound		3,191		—
Indian Rupee		7,825		—
Japanese Yen		12,803		—
	$	54,201	$	—

Schedule of gain (loss) associated with the Company's derivative financial instruments

	Years ended June 30,
	2021			2020			2019
Foreign currency exchange gain (loss) on forward contracts	$	(2,349	)	$	744		$	17
Foreign currency transactions gain (loss)		396			(3,087	)		(682	)

Fair Value Measurements (Tables)

12 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Summary of carrying values and estimated fair values of short-term and long-term debt

The following table summarizes the carrying value and estimated fair value of the New Credit Facilities and Notes (in thousands):

	June 30, 2021				June 30, 2020
	Carrying Value		Fair Value		Carrying Value		Fair Value
3.75% Convertible Notes Due 2022	$	2,712	$	3,164	$	76,398	$	65,272
3.75% Convertible Notes Due 2026		72,388		108,163		—		—
New Term Loan Facility		78,697		78,697		84,908		84,908
New Revolving Credit Facility		20,000		20,000		28,001		28,001
Total	$	173,797	$	210,024	$	189,307	$	178,181

Commitments and Contingencies (Tables)

12 Months Ended

Jun. 30, 2021

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Long-term Principal and Interest on Notes and New Credit Facilities

Future minimum long‑term principal and interest on the Notes and New Credit Facilities as of June 30, 2021 are as follows (in thousands):

Year Ending June 30,	Long-Term Debt (1)
2022	$	11,424
2023		16,018
2024		12,944
2025		14,696
2026		181,712
Total	$	236,794

(1)

Debt (Tables)

12 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of carrying values of all Debt

The following table presents the carrying value of the New Credit Facilities and the Notes (in thousands):

	Revolving Credit Facility		3.75% Convertible Notes due 2022			3.75% Convertible Notes due 2026			Term Loan Facility			Total
Carrying amount of equity conversion component	$	—	$	134		$	25,944		$	—		$	26,078
Principal amount	$	20,000	$	2,865		$	100,000		$	80,000		$	202,865
Unamortized debt costs		—		(34	)		(2,175	)		(1,303	)		(3,512	)
Unamortized debt discount		—		(119	)		(25,437	)		—			(25,556	)
Net carrying amount	$	20,000	$	2,712		$	72,388		$	78,697		$	173,797
Reported as:
Short-term debt												$	3,790
Long-term debt													170,007
Total debt												$	173,797

Summary of interest expense on New Credit Facilities and Convertible Notes

A summary of interest expense on the New Credit Facilities and the Notes is as follows (in thousands):

	Year ended June 30,
	2021		2020		2019
Interest expense related to contractual interest coupon	$	10,590	$	12,373	$	10,185
Interest expense related to amortization of debt discount		4,887		4,168		3,370
Interest expense related to amortization of debt issuance costs		1,356		1,350		1,529
Interest expense related to extinguishment of debt		9,948		—		—
Total	$	26,781	$	17,891	$	15,084

Stock Incentive Plan and Employee Stock Purchase Plan (Tables)

12 Months Ended

Jun. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of share-based compensation charges included in the Company's consolidated statements of operations and comprehensive income (loss)

The following table summarizes the share‑based compensation charges included in the Company’s consolidated statements of operations and comprehensive income (loss) (in thousands):

	Years ended June 30,
	2021		2020		2019
Cost of revenue	$	1,296	$	1,244	$	1,666
Research and development		1,348		1,457		1,773
Selling and marketing		1,457		1,159		2,081
General and administrative		5,231		4,292		5,081
Total	$	9,332	$	8,152	$	10,601

Schedule of assumptions used for determining fair value of stock options

The fair value of each option is estimated at the date of grant using the Black‑Scholes option pricing formula with the following assumptions:

	Years Ended June 30,
	2021			2020			2019
Risk–free interest rate	0.59% - 1.27%			1.14% - 1.53%			1.94% - 2.81%
Dividend yield		—	%		—	%		—	%
Expected term	6.72 - 6.88			5.63 - 5.64			5.31 - 5.51
Expected volatility	54.7% - 55.6%			47.3% - 48.9%			47.0% - 47.1%

Schedule of option activity under the Company's Incentive Plan

A summary of option activity under the Company’s incentive plan during the fiscal years is presented below (in thousands except per share and term amounts):

	Options Outstanding			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (In Years)		Aggregate Intrinsic Value
Balance at June 30, 2018		2,684		$	5.26		6.16	$	60
Options granted		3,359			4.09
Options exercised		(115	)		4.26
Options forfeited/expired		(708	)		5.51
Balance at June 30, 2019		5,220			4.50		7.97	$	11
Options granted		2,305			2.64
Options exercised		—			—
Options forfeited/expired		(1,569	)		4.36
Balance at June 30, 2020		5,956			3.82		8.04	$	—
Options granted		1,526			4.48
Options exercised		(209	)		4.09
Options forfeited/expired		(243	)		4.40
Balance at June 30, 2021		7,030			3.93		7.66	$	5,036
Vested or Expected to vest at June 30, 2021		6,455			3.94		7.55
Exercisable at June 30, 2021		3,417		$	4.09		6.63	$	2,359

Summary of information about outstanding and exercisable options

The following table summarizes information about outstanding and exercisable options at June 30, 2021 (in thousands, except years and exercise price):

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Outstanding		Weighted Average Exercise Price
$2.60 – 2.60		1,729		8.34	$	2.60		720	$	2.60
$2.96 – 4.01		654		7.08		3.55		434		3.77
$4.10 – 4.10		2,393		7.42		4.10		1,546		4.10
$4.23 – 4.52		1,432		9.49		4.47		2		4.23
$4.64 – 7.7		822		4.18		5.62		715		5.75
Total Outstanding		7,030		7.66		3.93		3,417	$	4.09

Summary of activity of RSUs, PSUs and MSUs

The following table summarizes the activity of RSUs, PSUs and MSUs (in thousands, except fair value per share):

Unvested Restricted Stock	Restricted Stock Units			Performance Stock Units			Market Stock Units			Total Number of Shares Underlying Stock Awards			Weighted Average Grant Date Fair Value Per Share
Unvested at June 30, 2018		3,700			63			1,397			5,160		$	5.03
Granted		1,386			—			—			1,386			3.68
Vested		(1,481	)		(10	)		—			(1,491	)		5.44
Cancelled/Forfeited		(521	)		(53	)		(756	)		(1,330	)		5.10
Unvested at June 30, 2019		3,084			—			641			3,725			4.34
Granted		2,009			419			—			2,428			2.74
Vested		(1,579	)		—			—			(1,579	)		4.62
Cancelled/Forfeited		(343	)					(470	)		(813	)		3.96
Unvested at June 30, 2020		3,171			419			171			3,761			3.26
Granted		1,738			280			—			2,018			4.16
Vested		(1,452	)		—			—			(1,452	)		3.52
Cancelled/Forfeited		(539	)		(419	)		(171	)		(1,129	)		3.20
Unvested at June 30, 2021		2,918			280			-			3,198		$	3.73

Schedule of weighted average assumptions used for determining fair value of ESPP shares

The Company estimates the fair value of ESPP shares at the date of grant using the Black‑Scholes option pricing model. The weighted average assumptions were as follows:

	Years Ended June 30,
	2021	2020	2019
Risk–free interest rate	0.04% - 0.1%	0.17% - 1.60%	2.11% - 2.72%
Dividend yield	—%	—%	—%
Expected term	0.5 - 1.0	0.5 - 1.0	0.5 - 1.0
Expected volatility	36.10% - 65.58%	45.46% - 75.21%	30.9% - 60.0%

Joint Venture (Tables)

12 Months Ended

Jun. 30, 2021

Equity Method Investments And Joint Ventures [Abstract]

Summary of Financial Information of Joint Ventures (Operations Data)

Summarized financial information of the JV is based one-quarter lag due to the timing of the availability of the JV’s financial records is as follows (in thousands):

	Twelve Months Ended March 31, 2021		Six Months Ended March 31, 2020
Statement of Operations Data:
Revenue	$	33,054	$	13,764
Gross Profit	$	10,578	$	2,960
Net income (loss)	$	1,785	$	(306	)
Net income (loss) attributable to the Company	$	872	$	(149	)

Summary of Financial Information of Joint Ventures (Balance Sheet Data)

	As of March 31, 2021		As of March 31, 2020
Summarized Balance Sheet Data:
Assets
Current assets	$	24,703	$	16,776
Non current assets		23,089		16,125
	$	47,792	$	32,901
Liabilities and Stockholders' Equity
Current liabilities	$	16,854	$	9,064
Non current liabilities		1,467		1,412
Stockholder's equity		29,471		22,425
	$	47,792	$	32,901

Income Taxes (Tables)

12 Months Ended

Jun. 30, 2021

Income Tax Disclosure [Abstract]

Schedule of components of income (loss) before provision for income taxes on the accompanying statements of operations and comprehensive loss

Income (loss) before provision for income taxes on the accompanying statements of operations and comprehensive loss included the following components (in thousands):

	Years Ended June 30,
	2021			2020			2019
Domestic	$	(8,448	)	$	(1,811	)	$	(23,799	)
Foreign		3,889			7,501			9,455
Total worldwide	$	(4,559	)	$	5,690		$	(14,344	)

Schedule of provision for income taxes

The provision for income taxes consisted of the following (in thousands):

	Years Ended June 30,
	2021			2020		2019
Current:
Federal	$	—		$	—	$	—
State		17			15		32
Foreign		1,849			1,495		2,140
Total current	$	1,866		$	1,510	$	2,172
Deferred:
Federal		—			—		—
State		—			—		—
Foreign		(114	)		353		(86	)
Total deferred		(114	)		353		(86	)
Total provision for income taxes	$	1,752		$	1,863	$	2,086

Schedule of reconciliation of income taxes at the statutory federal income tax rate to the provision for income taxes included in the accompanying consolidated statements of operations and comprehensive loss

	Years Ended June 30,
	2021			2020			2019
U.S. federal taxes (benefit):
At federal statutory rate	$	(958	)	$	1,195		$	(3,012	)
State tax, net of federal benefit		17			15			32
Share-based compensation expense		879			810			1,128
Debt extinguishment		898			—			—
Other non-deductible permanent items		155			418			486
R&D credits		(1,278	)		(635	)		(877	)
Foreign taxes		918			273			(38	)
Other		(57	)		(69	)		58
Global Intangible Low-Taxed Income		243			1,185			1,924
Change in valuation allowance		935			(1,329	)		2,385
Total	$	1,752		$	1,863		$	2,086

Schedule of significant components of net deferred tax assets

	June 30,
	2021			2020
Deferred tax assets:
Federal and state net operating losses	$	75,033		$	75,615
Accrued expenses and reserves		6,597			4,972
Lease liability		4,258			5,366
Deferred revenue		5,093			5,038
R&D Credits		24,340			22,843
Share-based compensation expense		1,096			1,337
Capitalized research and development		2,088			2,683
Unicap		1,827			2,105
Fixed assets/intangibles		1,055			1,199
Section 163(j) interest		1,817			1,823
Other		1,082			1,290
Total deferred tax assets		124,286			124,271
Deferred tax liabilities:
Contract acquisition costs		(1,174	)		(977	)
Right of use assets		(3,533	)		(4,508	)
Debt		(5,612	)		—
Total deferred tax liabilities		(10,319	)		(5,485	)
Valuation allowance		(113,476	)		(118,300	)
Net deferred tax assets	$	491		$	486

Schedule of aggregate changes in the balance of gross unrecognized tax benefits

The aggregate changes in the balance of gross unrecognized tax benefits were as follows (in thousands):

	Years Ended June 30,
	2021			2020			2019
Balance at beginning of year	$	16,996		$	16,280		$	15,299
Tax positions related to current year:
Additions		1,433			954			934
Tax positions related to prior years:
Additions		786			286			580
Reductions		(450	)		(524	)		(533	)
Balance at end of year	$	18,765		$	16,996		$	16,280

Defined Benefit Pension Obligation (Tables)

12 Months Ended

Jun. 30, 2021

Defined Benefit Pension Obligation Disclosure [Abstract]

Schedule of funded status

The following table presents the funded status of the defined benefit pension plan (in thousands):

	June 30,
	2021			2020
Change in benefit obligation:
Benefit obligation—beginning of fiscal year	$	18,426		$	17,577
Service cost		1,766			2,003
Interest cost		38			62
Plan participants’ contributions		1,676			2,886
Plan amendment		25			975
Actuarial (gain)/loss		(807	)		(615	)
Foreign currency changes		281			545
Benefit and expense payments		(2,700	)		(5,007	)
Benefit obligation—end of fiscal year	$	18,705		$	18,426
Change in plan assets:
Plan assets—beginning of fiscal year	$	13,958		$	14,228
Employer contributions		1,117			1,327
Actual return on plan assets		199			112
Plan participants’ contributions		1,676			2,885
Foreign currency changes		169			413
Benefit and expense payments		(2,700	)		(5,007	)
Plan assets—end of fiscal year	$	14,419		$	13,958
Funded status	$	(4,286	)	$	(4,468	)
Amounts recognized within the consolidated balance sheets:
Assets	$	—		$	—
Long-term other liabilities		(4,286	)		(4,468	)
Net amount recognized	$	(4,286	)	$	(4,468	)

Schedule of amounts recognized in accumulated other comprehensive loss (before tax)

The following table presents the amounts recognized in accumulated other comprehensive loss (before tax) for the defined benefit pension plan (in thousands):

	June 30,
	2021			2020
Net loss	$	(1,236	)	$	(1,000	)
Total recognized in other comprehensive income (loss)		872			(236	)
Accumulated other comprehensive loss	$	(364	)	$	(1,236	)

Schedule of projected benefit obligations, accumulated benefit obligation and fair value of plan assets where accumulated benefit obligation exceeded fair value of plan assets

	June 30,
	2021		2020
Projected benefit obligation	$	18,705	$	18,426
Accumulated benefit obligation	$	16,891	$	16,175
Fair value of plan assets	$	14,419	$	13,958

Schedule Of Net Benefit Costs And Other Amounts Recognized In Other Comprehensive Income Loss Table Text Block

	Year ended June 30,
	2021			2020			2019
Net Periodic Benefit Costs:
Service cost	$	1,766		$	2,003		$	1,865
Interest cost		38			62			128
Expected returns on assets		(142	)		(151	)		(170	)
Amortization of prior service cost		54			(2	)		(55	)
Amortization of net loss		—			—			—
Settlement charges		—			178			—
Net periodic benefit costs		1,716			2,090			1,768
Other Amounts Recognized in Other Comprehensive Loss:
Net (gain) loss arising during the year		(850	)		(593	)		801
Prior service cost		(54	)		2			—
Amortization of prior service cost		24			1,005			55
Amortization of net gain		—			—			—
Effect of settlement		8			(178	)		—
Total recognized in other comprehensive (gain) loss		(872	)		236			856
Total recognized in net periodic benefit costs and other comprehensive loss	$	844		$	2,326		$	2,624

Schedule of amounts in accumulated other comprehensive loss that are expected to be recognized

	2022
Net loss	$	(188	)
Prior service credit		479
Accumulated other comprehensive loss	$	291

Schedule of assumptions used to determine net periodic benefit cost and benefit obligation

The assumptions used to determine net periodic benefit cost and to compute the expected long‑term return on assets for the Company’s defined benefit pension plan were as follows:

	Fiscal Years
	2021			2020			2019
Net Periodic Benefit Costs:
Discount rate		0.40	%		0.25	%		0.45	%
Rate of compensation increase		1.50	%		1.50	%		1.50	%
Expected long-term return on assets		1.00	%		1.00	%		1.20	%

The assumptions used to measure the benefit obligation for the Company’s defined benefit pension plan were as follows:

	June 30,
	2021			2020
Benefit Obligation:
Discount rate		0.40	%		0.25	%
Rate of compensation increase		1.50	%		1.50	%

Schedule of estimated future benefit payments

Estimated future benefit payments expected to be paid by the defined benefit pension plan at June 30, 2021 are as follows (in thousands):

Year Ending June 30,	Future Benefits
2022	$	891
2023		891
2024		889
2025		1,062
2026		903
Thereafter		6,280
Total	$	10,916

Segment Disclosure (Tables)

12 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Summary of Revenue by Geographic Region

Revenues attributed to a country or region is based on the shipping addresses of the Company’s customers. The following summarizes revenue by geographic region (in thousands):

	Years ended June 30,
	2021		2020		2019
Americas	$	105,878	$	128,562	$	135,683
Europe, Middle East, India and Africa		121,568		119,989		149,095
Asia Pacific, excluding Japan and China		26,425		31,297		44,136
Japan		62,636		72,688		70,214
China		79,782		30,392		19,657
Total	$	396,289	$	382,928	$	418,785

Revenues attributed to a country or region is based on the shipping addresses of the Company’s customers. The following summarizes revenue by geographic region (in thousands):

Schedule of Geographic Areas in Which the Company has Long Lived Tangible Assets

Information regarding geographic areas in which the Company has long‑lived tangible assets is as follows (in thousands):

	June 30, 2021		June 30, 2020
Americas	$	10,588	$	12,807
Europe, Middle East, India and Africa		265		373
Asia Pacific, excluding Japan and China		170		126
Japan		701		1,183
China		608		860
Total	$	12,332	$	15,349

Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Jun. 30, 2021

Quarterly Financial Data [Abstract]

Schedule of selected quarterly financial data (unaudited)

The following table provides the selected quarterly financial data for fiscal 2021 and 2020 (in thousands, except net income (loss) per share amounts:

	Quarters ended
	September 30, 2020		December 31, 2020		March 31, 2021			June 30, 2021
Net revenue	$	85,332	$	97,456	$	102,562		$	110,936
Gross profit	$	35,403	$	40,831	$	39,542		$	43,731
Net Income (loss)	$	402	$	4,769	$	(390	)	$	(11,092	)
Net income (loss) per share - basic	$	0.00	$	0.05	$	(0.00	)	$	(0.12	)
Net income (loss) per share - diluted	$	0.00	$	0.05	$	(0.00	)	$	(0.12	)
Weighted average common shares used in computing net income (loss) per share:
Basic		91,194		92,025		93,123			91,613
Diluted		91,681		93,353		93,123			91,613

	Quarters ended
	September 30, 2019			December 31, 2019		March 31, 2020		June 30, 2020
Net revenue	$	89,577		$	98,826	$	99,548	$	94,977
Gross profit	$	32,943		$	37,900	$	39,133	$	39,745
Net income loss	$	(9,356	)	$	10,710	$	2,625	$	(152	)
Net loss per share—basic and diluted	$	(0.11	)	$	0.12	$	0.03	$	(0.00	)
Weighted average common shares used in computing net income (loss) per share:
Basic		88,772			89,517		90,476		90,748
Diluted		88,772			90,279		90,855		90,748

The Company and its Significant Accounting Policies - Additional Information (Details) shares in Millions	12 Months Ended
	Jun. 30, 2021 USD ($) Customer segment shares	Jun. 30, 2020 USD ($) Customer shares	Jun. 30, 2019 USD ($) Customer shares
Concentration Risk [Line Items]
Capitalized development of software costs	$ 0
Number of operating segments \| segment	1
Number of reporting units \| segment	1
Impairment of goodwill	$ 0	$ 0	$ 0
Advertising expenses	200,000	$ 200,000	$ 500,000
Reduction in uncertain tax position due to lapse of various statutes of limitation	$ 20,000.00
Subsequent period within which no material changes in unrecognized tax benefits are expected	12 months
Stock options
Concentration Risk [Line Items]
Expiration period	10 years
Machinery and equipment
Concentration Risk [Line Items]
Period over which property and equipment are depreciated	5 years
Furniture and fixtures
Concentration Risk [Line Items]
Period over which property and equipment are depreciated	4 years
Computer and office equipment
Concentration Risk [Line Items]
Period over which property and equipment are depreciated	3 years
Computer Software
Concentration Risk [Line Items]
Period over which property and equipment are depreciated	3 years
Maximum
Concentration Risk [Line Items]
Estimated useful lives of purchased intangible assets	7 years
Minimum
Concentration Risk [Line Items]
Estimated useful lives of purchased intangible assets	1 year
Total net revenue \| Customer concentration risk
Concentration Risk [Line Items]
Percentage of concentration risk	10.00%	10.00%	10.00%
Total net revenue \| Customer concentration risk \| Minimum
Concentration Risk [Line Items]
Number of significant customers \| Customer	1	0	0
Total accounts receivable \| Credit concentration risk
Concentration Risk [Line Items]
Number of significant customers \| Customer	2	1
Total accounts receivable \| Credit concentration risk \| Minimum
Concentration Risk [Line Items]
Percentage of concentration risk	10.00%	10.00%
3.75% Convertible Notes Due July 2022
Concentration Risk [Line Items]
Interest rate (as a percent)	3.75%	3.75%	3.75%
Convertible debt maturity period	2022-07
Common stock not included in the calculation of potentially diluted shares \| shares	0.5	14.9	14.9
3.75% Convertible Notes Due June 2026
Concentration Risk [Line Items]
Interest rate (as a percent)	3.75%
Convertible debt maturity period	2026-06
Common stock not included in the calculation of potentially diluted shares \| shares	17.1

The Company and its Significant Accounting Policies - Schedule of reconciliation of the numerator and denominator used in the calculation of basic and diluted net income (loss) per common share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net income (loss) used to compute basic and diluted loss per share	$ (11,092)	$ (390)	$ 4,769	$ 402	$ (152)	$ 2,625	$ 10,710	$ (9,356)	$ (6,311)	$ 3,827	$ (16,430)
Denominator:
Weighted average shares used to compute basic income (loss) per share	91,613	93,123	92,025	91,194	90,748	90,476	89,517	88,772	92,031	89,874	87,465
Weighted average shares used to compute diluted income (loss) per share	91,613	93,123	93,353	91,681	90,748	90,855	90,279	88,772	92,031	90,623	87,465

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Unbilled accounts receivable – current

The Company and its Significant Accounting Policies - Schedule of all potentially dilutive securities excluded from the computation of basic and diluted net income (loss) per common share (Details) - shares shares in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted net income (loss) per share (in shares)	10,228	9,717	8,945
Stock options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted net income (loss) per share (in shares)	7,030	5,956	5,220
RSUs, PSUs and MSUs
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted net income (loss) per share (in shares)	3,198	3,761	3,725

Recent Accounting Pronouncements - Estimated Impact on Opening Consolidated Balance Sheets Due to Adoption of ASU 2020-06 (Details) - USD ($) $ in Thousands	Jul. 01, 2021	Jun. 30, 2021	Jun. 30, 2020
Convertible senior notes, net		$ 75,100
Additional paid-in-capital		554,680	$ 545,741
Accumulated deficit		(488,024)	$ (481,713)
Cumulative Effect, Period of Adoption, Adjusted Balance \| Subsequent Event
Convertible senior notes, net	$ 99,884
Additional paid-in-capital	529,046
Accumulated deficit	$ (487,174)
ASU 2020-06 \| Cumulative Effect, Period of Adoption, Adjustment
Convertible senior notes, net		24,784
Additional paid-in-capital		(25,634)
Accumulated deficit		$ 850

Revenue -Summary of Contract with Customer, Asset and Liability (Details) - USD ($)
$ in Thousands

12 Months Ended

Jun. 30, 2021

Jun. 30, 2020

Assets:

^[1]

$ 12,354

$ 11,739

Interest receivable – current

^[2]

512

493

Long-term accounts receivable

^[3]

4,970

3,810

Interest receivable – non-current

^[3]

1,083

1,342

Liabilities:

Customer advances

24,937

22,571

Deferred revenue – current

81,660

83,207

Deferred revenue – non-current

23,685

$ 24,125

Change in assets, value:

Change in unbilled accounts receivable – current, value

^[1]

615

Change in interest receivable – current, value

^[2]

Change in long-term accounts receivable, value

^[3]

1,160

Change in Interest receivable – non-current, value

^[3]

(259)

Change in liabilities, value:

Change in customer advances, value

2,366

Change in deferred revenue – current, value

(1,547)

Change in deferred revenue – non-current, value

$ (440)

Change in assets, percentage:

Change in unbilled accounts receivable – current, percentage

^[1]

5.00%

Change in interest receivable – current, percentage

^[2]

4.00%

Change in long-term accounts receivable, percentage

^[3]

30.00%

Change in Interest receivable – non-current, percentage

^[3]

(19.00%)

Change in liabilities, percentage:

Change in customer advances, percentage

10.00%

Change in deferred revenue – current, percentage

(2.00%)

Change in deferred revenue – non-current, percentage

(2.00%)

[1]	Included in accounts receivable on consolidated balance sheets
[2]	Included in prepaid expenses and other current assets on consolidated balance sheets
[3]	Included in other assets on consolidated balance sheets

Revenue - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Recognition of deferred revenue	$ 107.3	$ 87.7
Remaining performance obligations amount	$ 1,085.7
Percentage of changes in operating results on entity's revenue	26.00%
Capitalized costs to obtain a contract	$ 8.9	7.9
Impairment loss	0.6	1.2
Capitalized contract cost, amortization	2.8	$ 1.9
Long-term Warranty and Service
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations amount	76.3
Performance Obligations Other Than Warrant
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations amount	$ 1,009.4

Revenue - Schedule of Remaining Performance Obligations related to Warranty (Details) - Long-term Warranty and Service $ in Thousands	Jun. 30, 2021 USD ($)
2022	$ 33,479
2023	23,042
2024	10,135
Thereafter	$ 9,665

Revenue - Additional Information (Details1) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-07-01	Jun. 30, 2021
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations recognized period	12 months
Minimum
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations percentage	20.00%
Maximum
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations percentage	27.00%

Supplemental Financial Information - Schedule of Accounts Receivable, Net (Details) - USD ($)
$ in Thousands

Jun. 30, 2021

Jun. 30, 2020

Accounts receivable, net

Accounts receivable

$ 74,054

$ 80,128

Unbilled fees and services

^[1]

12,354

11,739

Accounts and other receivable, gross

86,408

91,867

Less: Allowance for credit losses

(1,048)

(1,268)

Accounts receivable, net

^[2]

$ 85,360

$ 90,599

[1]	Included in accounts receivable on consolidated balance sheets
[2]	Included accounts receivable from the China joint venture of $8,822 and $3,039 at June 30, 2021 and June 30, 2020, respectively. See Note 13

Supplemental Financial Information - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Accounts receivable, net
Allowance for credit losses, payments and credits	$ 800	$ 400
Allowance for credit losses, additions	700	1,200
Allowance for credit losses, write-offs	200	100
Financing receivables
Accounts receivable with contractual maturities of more than one year	3,387	3,792
Adjustments to allowance for credit loss	3,400	800
Financing receivables, additions	200	800
Financing receivables, write-offs	3,600
Property and equipment, net
Depreciation expense	$ 6,200	$ 7,300	$ 8,100

Supplemental Financial Information - Summary of Financing Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Financing receivables
Financing receivable	$ 7,102	$ 11,245
Allowance for credit losses	(943)	(4,369)
Total, net	6,159	6,876
Current	2,772	3,084
Non-current	$ 3,387	$ 3,792

Supplemental Financial Information - Summary of Inventories, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Inventory Net [Abstract]
Raw materials	$ 45,301	$ 48,037
Work-in-process	22,014	17,798
Finished goods	58,614	68,539
Inventories, net	$ 125,929	$ 134,374

Supplemental Financial Information - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Property and equipment, net
Property and equipment, gross	$ 90,507	$ 100,122
Less: Accumulated depreciation	(78,175)	(84,773)
Property and equipment, net	12,332	15,349
Furniture and Fixtures
Property and equipment, net
Property and equipment, gross	1,636	1,961
Computer and Office Equipment
Property and equipment, net
Property and equipment, gross	8,972	10,896
Software
Property and equipment, net
Property and equipment, gross	7,477	11,606
Leasehold Improvements
Property and equipment, net
Property and equipment, gross	26,102	26,206
Machinery and Equipment
Property and equipment, net
Property and equipment, gross	45,265	48,830
Construction in Progress
Property and equipment, net
Property and equipment, gross	$ 1,055	$ 623

Supplemental Financial Information - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss)
Balance	$ 63,635	$ 49,871
Balance	68,840	63,635
Foreign Currency Items
Accumulated Other Comprehensive Income (Loss)
Balance	752	990
Other comprehensive loss	1,705	(238)
Balance	2,457	752
Change in Defined Pension Benefit Obligation
Accumulated Other Comprehensive Income (Loss)
Balance	(1,236)	(1,000)
Other comprehensive loss	872	(236)
Balance	(364)	(1,236)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)
Balance	(484)	(10)
Other comprehensive loss	2,577	(474)
Balance	$ 2,093	$ (484)

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

Long-term principal and interest on Convertible Notes

Supplemental Financial Information - Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Supplemental Financial Information Disclosure [Abstract]
Interest expense	$ (16,893)	$ (18,080)	$ (15,084)
Foreign currency transaction loss	(1,953)	(2,343)	(665)
Gain on contribution to equity method investment		12,964
Loss on Debt Extinguishment	(9,948)
Other expense, net	1,128	759	822
Total other expense, net	$ (27,666)	$ (6,700)	$ (14,927)

Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating lease costs	$ 9.1	$ 9.5
Short-term operating lease costs	0.2	0.5
Cash paid for amounts included in the measurement of operating lease liabilities	9.7	9.5
Operating lease liabilities arising from obtaining operating right of-use assets	$ 1.1	$ 5.2
Weighted average remaining lease term	3 years 1 month 2 days
Weighted average discount rate	5.39%

Leases - Schedule of Operating Lease Right-of-use Assets and Operating Lease Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Beginning balance operating lease right-of-use asset	$ 28,647	$ 30,578
Lease asset added	1,069	5,244
Amortization for the year	(7,194)	(7,175)
Ending balance operating lease right-of-use asset	22,522	28,647
Beginning balance operating lease obligation	32,397	34,465
Lease liability added	1,069	5,244
Repayment and interest accretion	(7,857)	(7,312)
Ending balance operating lease obligation	25,609	32,397
Operating lease liabilities, current	8,169	8,224
Operating lease liabilities, non-current	$ 17,441	$ 24,173

Leases - Schedule of Maturities of Operating Lease Liabilities (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Leases [Abstract]
2022	$ 9,564
2023	8,906
2024	6,148
2025	3,163
2026	5
Total operating lease payments	27,786
Less: imputed interest	(2,177)
Present value of operating lease liabilities	$ 25,609

Goodwill and Purchased Intangible Assets - Schedule of Goodwill and Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 57,717	$ 57,770
Currency translation adjustment	243	(53)
Balance at the end of the period	$ 57,960	$ 57,717

Goodwill and Purchased Intangible Assets - Additional Information (Details) - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2017
Finite Lived Intangible Assets [Line Items]
Impairment of goodwill	$ 0	$ 0	$ 0
Purchase of intangible assets		170,000
Amortization expense	$ 200,000	$ 200,000	$ 100,000
Patent license
Finite Lived Intangible Assets [Line Items]
Useful Lives		2 years		7 years
Purchase of intangible assets		$ 170,000

Goodwill and Purchased Intangible Assets - Schedule of Intangible Assets Associated with Purchased Patent License (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2017
Finite Lived Intangible Assets [Line Items]
Net Amount	$ 435	$ 663
Minimum
Finite Lived Intangible Assets [Line Items]
Useful Lives	1 year
Maximum
Finite Lived Intangible Assets [Line Items]
Useful Lives	7 years
Patent license
Finite Lived Intangible Assets [Line Items]
Useful Lives		2 years	7 years
Gross Carrying Amount	$ 1,170	$ 1,170
Accumulated Amortization	(735)	(507)
Net Amount	$ 435	$ 663
Patent license \| Minimum
Finite Lived Intangible Assets [Line Items]
Useful Lives	2 years
Patent license \| Maximum
Finite Lived Intangible Assets [Line Items]
Useful Lives	7 years

Goodwill and Purchased Intangible Assets - Schedule of Estimated Future Amortization Expense of Purchased Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Estimated future amortization expense of purchased intangible assets
2022	$ 185
2023	143
2024	107
Net Amount	$ 435	$ 663

Derivative Financial Instruments - Additional Information (Details)	12 Months Ended
	Jun. 30, 2021
Maximum
Length of forward contracts	three months

Derivative Financial Instruments - Summary of Outstanding Forward Currency Exchange Contracts (Details) - Forward Currency Exchange Contracts	Jun. 30, 2021 USD ($)
Outstanding forward currency exchange contracts	$ 54,201,000
Canadian Dollar
Outstanding forward currency exchange contracts	527,000
Swiss Franc
Outstanding forward currency exchange contracts	8,891,000
Chinese Yuan
Outstanding forward currency exchange contracts	1,927,000
Euro
Outstanding forward currency exchange contracts	19,037,000
British Pound
Outstanding forward currency exchange contracts	3,191,000
Indian Rupee
Outstanding forward currency exchange contracts	7,825,000
Japanese Yen
Outstanding forward currency exchange contracts	$ 12,803,000

Derivative Financial Instruments - Schedule of Gain (Loss) Associated with the Company's Derivative Financial Instruments (Details) - Other expense, net - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Foreign currency exchange gain (loss) on forward contracts	$ 396	$ (3,087)	$ (682)
Forward contracts
Foreign currency exchange gain (loss) on forward contracts	$ (2,349)	$ 744	$ 17

Fair Value Measurements - Additional Information (Details) - Forward Currency Exchange Contracts	Jun. 30, 2021 USD ($)
Financial assets
Outstanding forward currency exchange contracts	$ 54,201,000
Level 2
Financial assets
Fair value of currency contract based on exchange rate	$ 54,200,000

Fair Value Measurements - Summary of Carrying Value and Estimated Fair Value of all Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Carrying Value
Fair value measurement
Long term debt	$ 173,797	$ 189,307
Fair Value
Fair value measurement
Long term debt	210,024	178,181
Non-recurring basis \| Carrying Value \| Level 2 \| 3.75% Convertible Notes Due 2022
Fair value measurement
Long term debt	2,712	76,398
Non-recurring basis \| Carrying Value \| Level 2 \| 3.75% Convertible Notes Due 2026
Fair value measurement
Long term debt	72,388
Non-recurring basis \| Fair Value \| Level 2 \| 3.75% Convertible Notes Due 2022
Fair value measurement
Long term debt	3,164	65,272
Non-recurring basis \| Fair Value \| Level 2 \| 3.75% Convertible Notes Due 2026
Fair value measurement
Long term debt	108,163
New Term Loan Facility \| Non-recurring basis \| Carrying Value \| Level 2
Fair value measurement
Long term debt	78,697	84,908
New Term Loan Facility \| Non-recurring basis \| Fair Value \| Level 2
Fair value measurement
Long term debt	78,697	84,908
New Revolving Credit Facility \| Non-recurring basis \| Carrying Value \| Level 2
Fair value measurement
Long term debt	20,000	28,001
New Revolving Credit Facility \| Non-recurring basis \| Fair Value \| Level 2
Fair value measurement
Long term debt	$ 20,000	$ 28,001

Fair Value Measurements - Summary of Carrying Value and Estimated Fair Value of all Debt (Parenthetical) (Details)	Jun. 30, 2021	May 31, 2021	Jun. 30, 2020	Aug. 31, 2017
3.75% Convertible Notes Due 2022
Fair value measurement
Interest rate (as a percent)	3.75%	3.75%	3.75%	3.75%
3.75% Convertible Notes Due 2026
Fair value measurement
Interest rate (as a percent)	3.75%	3.75%	3.75%	3.75%

Commitments and Contingencies - Additional Information (Details) - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
License agreement \| WARF (Wisconsin Alumni Research Foundation)
Loss Contingencies [Line Items]
License agreement expiration date	Aug. 06, 2019
Royalty costs	$ 1,900,000	$ 2,500,000	$ 3,800,000
Royalty amount accrued	2,300,000	2,600,000
Financial Guarantee \| Various Customers
Loss Contingencies [Line Items]
Bank guarantees	$ 1,200,000
Financial Guarantee \| Three Customers
Loss Contingencies [Line Items]
Bank guarantees		$ 1,000,000.0
3.75% Convertible Notes due 2022
Loss Contingencies [Line Items]
Interest rate (as a percent)	3.75%
3.75% Convertible Notes Due 2026
Loss Contingencies [Line Items]
Interest rate (as a percent)	3.75%

Commitments and Contingencies - Schedule of Future Minimum Long-term Principal and Interest on Notes and New Credit Facilities (Details)
$ in Thousands

Jun. 30, 2021

USD ($)

^[1]

$ 11,424

16,018

12,944

14,696

181,712

$ 236,794

[1]

Debt - Additional Information (Details)				1 Months Ended							3 Months Ended	12 Months Ended
Debt - Additional Information (Details)	May 14, 2021 USD ($)	May 06, 2021 USD ($)	Jun. 14, 2017 USD ($)	May 31, 2021 USD ($)	Aug. 31, 2019 USD ($)	Jul. 31, 2019	May 31, 2019 USD ($)	Apr. 30, 2019	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2021 USD ($) $ / shares	Jun. 30, 2021 USD ($) $ / shares	Jun. 30, 2020 USD ($) $ / shares	Aug. 31, 2017 USD ($)	Apr. 30, 2014	Feb. 28, 2013
Debt Instrument [Line Items]
Loss on extinguishment of debt												$ 9,948,000
Debt discount costs											$ 25,556,000	25,556,000
Principal amount of the Notes											202,865,000	202,865,000
Unamortized debt costs											3,512,000	3,512,000
Revolving Credit Facility
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 1,400,000
Initial borrowing capacity			$ 52,000,000.0
Minimum drawn balance (as a percent)			30.00%
Principal amount of the Notes											20,000,000	20,000,000
Term loan
Debt Instrument [Line Items]
Principal amount of the Notes											80,000,000	80,000,000
New Revolving Credit Facility
Debt Instrument [Line Items]
Initial borrowings	25,000,000
Principal amount of the Notes											20,000,000.0	20,000,000.0
Unamortized debt costs											1,300,000	$ 1,300,000
90-day LIBOR \| Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate determination basis												90-day LIBOR
Variable rate (as a percent)			4.50%				3.50%	4.50%
3.75% Convertible Notes Due 2022
Debt Instrument [Line Items]
Aggregate principal amount of debt issued											$ 82,100,000	$ 82,100,000		$ 85,000,000.0
Interest rate (as a percent)				3.75%							3.75%	3.75%	3.75%	3.75%
Conversion rate, number of shares to be issued per $1000 of principal amount (in shares)												170.5611	174.8252
Principal amount used for debt instrument conversion ratio											$ 1,000	$ 1,000	$ 1,000
Conversion price (in dollars per share) \| $ / shares											$ 5.86	$ 5.86	$ 5.72
Repurchase price, as a percentage of the principal amount, in the event of a fundamental change, as defined in Indenture													100.00%
Convertible notes exchanged				$ 82,100,000
Convertible notes, aggregate principal amount outstanding											$ 2,900,000	$ 2,900,000
Loss on extinguishment of debt												4,300,000
Extinguishment of equity component												14,500,000
Settlement consideration paid												96,000,000.0
Debt instrument, fair value of liability component											81,500,000	81,500,000
Debt discount costs											119,000	119,000
Principal amount of the Notes											2,865,000	2,865,000
Unamortized debt costs											$ 34,000	$ 34,000
3.50% Convertible Notes Due 2018
Debt Instrument [Line Items]
Interest rate (as a percent)																3.50%
3.50% Series A Convertible Senior Notes Due 2018
Debt Instrument [Line Items]
Interest rate (as a percent)															3.50%
3.75% Convertible Notes Due 2026
Debt Instrument [Line Items]
Aggregate principal amount of debt issued				$ 100,000,000.0
Interest rate (as a percent)				3.75%							3.75%	3.75%	3.75%	3.75%
Repurchase price, as a percentage of the principal amount, in the event of a fundamental change, as defined in Indenture												100.00%
Convertible notes exchanged				$ 97,100,000
Convertible notes, aggregate principal amount outstanding											$ 100,000,000.0	$ 100,000,000.0
Convertible notes, aggregate principal amount issued for cash				$ 2,900,000
Debt discount costs											25,437,000	25,437,000
Principal amount of the Notes											100,000,000	100,000,000
Unamortized debt costs											$ 2,175,000	$ 2,175,000
3.75% Convertible Notes Due 2026 \| New Qualified Investors
Debt Instrument [Line Items]
Interest rate (as a percent)											3.75%	3.75%
Extinguishment of equity component												$ 25,900,000
Debt instrument, fair value of liability component											$ 74,100,000	74,100,000
Convertible notes, aggregate principal amount issued for cash												2,900,000
Reduction in debt issuance cost allocated to additional paid in capital												$ 700,000
Exchange \| 3.75% Convertible Notes Due 2022
Debt Instrument [Line Items]
Aggregate principal amount of debt issued														$ 53,000,000.0
Exchange \| 3.50% Convertible Notes due 2018 and 3.5% Series A Senior Notes due 2018
Debt Instrument [Line Items]
Aggregate principal amount of debt issued														47,000,000.0
Repurchase
Debt Instrument [Line Items]
Repurchase/Retirement of existing notes														28,000,000.0
Repurchase \| 3.75% Convertible Notes Due 2022
Debt Instrument [Line Items]
Aggregate principal amount of debt issued														$ 32,000,000.0
Prior Revolving Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Reduced borrowing capacity										$ 32,000,000.0
Prior Term Loan
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 4,300,000
Prior Term Loan \| Term loan
Debt Instrument [Line Items]
Initial term loan borrowing capacity										40,000,000.0
Additional term loan borrowing capacity										$ 20,000,000.0
Loan prepayment fees for first year (percentage)										3.00%
Loan prepayment fees for second year (percentage)										2.00%
Loan prepayment fees for third year (percentage)										1.00%
Term of loan										60 months
Term of interest payable (in months)										24 months
Administrative fee payable on term loan as a percentage										0.25%
Final payment of administrative fee payable on term loan as a percentage										4.00%
Debt instrument amount withdrawn									$ 5,000,000.0
Debt instrument scheduled commitment extended termination date									Jun. 30, 2019
Debt instrument remaining unfunded commitment amount									$ 15,000,000.0
Debt instrument increased commitment amount					$ 25,000,000		$ 500,000
Debt discount costs					$ 1,600,000		$ 1,500,000
Prior Term Loan \| 90-day LIBOR \| Term loan
Debt Instrument [Line Items]
Interest rate determination basis												90-day LIBOR
Variable rate (as a percent)					6.75%	5.50%	5.50%	6.75%		6.75%
Senior Secured Credit Agreement \| Consolidated Senior Net Leverage Ratio is Greater Than or Equal to 3.00:1.00
Debt Instrument [Line Items]
Variable rate (as a percent)		3.25%
Senior Secured Credit Agreement \| Consolidated Senior Net Leverage Ratio is Greater Than or Equal to 2.00:1.00 But Less Than 3.00:1.00
Debt Instrument [Line Items]
Variable rate (as a percent)		3.00%
Senior Secured Credit Agreement \| Consolidated Senior Net Leverage Ratio is Greater Than or Equal to 1.00:1.00 But Less Than 2.00:1.00
Debt Instrument [Line Items]
Variable rate (as a percent)		2.75%
Senior Secured Credit Agreement \| Consolidated Senior Net Leverage Ratio is Less Than 1.00:1.00
Debt Instrument [Line Items]
Variable rate (as a percent)		2.50%
Senior Secured Credit Agreement \| Term loan
Debt Instrument [Line Items]
Term of loan		5 years
Credit facility borrowing capacity		$ 80,000,000
Senior Secured Credit Agreement \| New Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility borrowing capacity		$ 40,000,000
Senior Secured Credit Agreement \| New Credit Agreement
Debt Instrument [Line Items]
Unused commitment fee percentage per annum of average unused portion of the New Revolving Credit Facility											0.35%
Senior Secured Credit Agreement \| New Credit Agreement \| Consolidated Senior Net Leverage Ratio is Greater Than or Equal to 3.00:1.00
Debt Instrument [Line Items]
Unused commitment fee percentage per annum of average unused portion of the New Revolving Credit Facility		0.40%
Senior Secured Credit Agreement \| New Credit Agreement \| Consolidated Senior Net Leverage Ratio is Greater Than or Equal to 2.00:1.00 But Less Than 3.00:1.00
Debt Instrument [Line Items]
Unused commitment fee percentage per annum of average unused portion of the New Revolving Credit Facility		0.35%
Senior Secured Credit Agreement \| New Credit Agreement \| Consolidated Senior Net Leverage Ratio is Greater Than or Equal to 1.00:1.00 But Less Than 2.00:1.00
Debt Instrument [Line Items]
Unused commitment fee percentage per annum of average unused portion of the New Revolving Credit Facility		0.30%
Senior Secured Credit Agreement \| New Credit Agreement \| Consolidated Senior Net Leverage Ratio is Less Than 1.00:1.00
Debt Instrument [Line Items]
Unused commitment fee percentage per annum of average unused portion of the New Revolving Credit Facility		0.25%
Senior Secured Credit Agreement \| New Credit Agreement \| If all or Portion of Loans Under New Term Loan Facility are Prepaid
Debt Instrument [Line Items]
Unused commitment fee percentage per annum of average unused portion of the New Revolving Credit Facility		1.00%
Senior Secured Credit Agreement \| 90-day LIBOR
Debt Instrument [Line Items]
Interest rate determination basis												90-day LIBOR
Variable rate (as a percent)											3.00%
Senior Secured Credit Agreement \| 90-day LIBOR \| Floor Rate
Debt Instrument [Line Items]
Variable rate (as a percent)		0.50%

Debt - Schedule of Carrying Values of All Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Debt Instrument [Line Items]
Carrying amount of equity conversion component	$ 26,078
Principal amount	202,865
Unamortized debt costs	(3,512)
Unamortized debt discount	(25,556)
Net carrying amount	173,797
Reported as:
Short-term debt	3,790
Long-term debt	170,007	$ 189,307
Net carrying amount	173,797
Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	20,000
Net carrying amount	20,000
Reported as:
Net carrying amount	20,000
3.75% Convertible Notes Due 2022
Debt Instrument [Line Items]
Carrying amount of equity conversion component	134
Principal amount	2,865
Unamortized debt costs	(34)
Unamortized debt discount	(119)
Net carrying amount	2,712
Reported as:
Net carrying amount	2,712
3.75% Convertible Notes Due 2026
Debt Instrument [Line Items]
Carrying amount of equity conversion component	25,944
Principal amount	100,000
Unamortized debt costs	(2,175)
Unamortized debt discount	(25,437)
Net carrying amount	72,388
Reported as:
Net carrying amount	72,388
Term Loan Facility due December 2022
Debt Instrument [Line Items]
Principal amount	80,000
Unamortized debt costs	(1,303)
Net carrying amount	78,697
Reported as:
Net carrying amount	$ 78,697

Debt - Summary of interest expense on New Credit Facilities and Convertible Notes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Debt Disclosure [Abstract]
Interest expense related to contractual interest coupon	$ 10,590	$ 12,373	$ 10,185
Interest expense related to amortization of debt discount	4,887	4,168	3,370
Interest expense related to amortization of debt issuance costs	1,356	1,350	1,529
Interest expense related to extinguishment of debt	9,948
Total	$ 26,781	$ 17,891	$ 15,084

Shareholders' Equity - Additional Information (Details) - USD ($) $ in Thousands		12 Months Ended
	May 07, 2021	Jun. 30, 2021	May 05, 2021
Class of Stock [Line Items]
Number of shares of common stock reserved for issuance under stock incentive plans and employee stock purchase plan		10,200,000
Repurchased common stock	3,108,369
Aggregate amount of shares repurchased	$ 14,100	$ 14,081
Maximum
Class of Stock [Line Items]
Authorized repurchase of common stock			18,000,000

Stock Incentive Plan and Employee Stock Purchase Plan - Additional Information (Details)	12 Months Ended
	Jun. 30, 2021 USD ($) Plan Item $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2019 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of stock incentive plans \| Plan	3
Fair value of common stock (in dollars per share) \| $ / shares	$ 4.52
Share-based compensation expense	$ 9,332,000	$ 8,152,000	$ 10,601,000
ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 1,400,000	$ 1,100,000	$ 1,100,000
Weighted average period for recognition of compensation costs	6 months
Unrecognized compensation cost	$ 700,000
Purchase price expressed as percentage of fair market value of common stock	85.00%
Shares issued under the ESPP \| shares	1,200,000	1,100,000	900,000
Weighted average fair value (in dollars per share) \| $ / shares	$ 1.9	$ 2.16	$ 3.31
Maximum \| ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Payroll deductions as percentage of salaries	10.00%
Number of shares per period up to which employees may purchase \| shares	2,500
Value of shares up to which employees may purchase in any calendar year	$ 25,000
Stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total intrinsic value of options exercised	200,000	$ 0	$ 100,000
Share-based compensation expense	2,400,000	2,000,000.0	1,400,000
Realized excess tax benefits related to stock options exercises	0	0	0
Unrecognized compensation cost related to unvested stock options, net of estimated forfeitures	$ 7,200,000
Weighted average period for recognition of compensation costs	2 years 6 months 25 days
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 5,400,000	$ 4,900,000	$ 7,200,000
Weighted average period for recognition of compensation costs	2 years 7 days
Unrecognized compensation cost	$ 8,700,000
Weighted average grant date fair value (in dollars per share) \| $ / shares	$ 4.16	$ 2.74	$ 3.68
Aggregate fair market value of units vested	$ 5,800,000
Granted (in shares) \| shares	1,738,000	2,009,000	1,386,000
Vested (in shares) \| shares	1,452,000	1,579,000	1,481,000
Cancelled/Forfeited (in shares) \| shares	539,000	343,000	521,000
Performance Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted (in shares) \| shares	280,000	419,000	0
Vested (in shares) \| shares	0	0	10,000
Cancelled (in shares) \| shares	419,000	0	53,000
Share-based compensation expense (benefit)	$ 0	$ 0	$ 100,000
Cancelled/Forfeited (in shares) \| shares	419,000		53,000
Market Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 100,000	$ 200,000	$ 1,000,000.0
Unrecognized compensation cost	$ 0
Granted (in shares) \| shares	0	0	0
Vested (in shares) \| shares	0	0	0
Cancelled/Forfeited (in shares) \| shares	171,000	470,000	756,000
2007 Amended and Restated Plan \| Stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Contractual term	10 years
Percentage of the award vesting at first anniversary	25.00%
Vesting period for first 25% vesting rights	1 year
Remainder vesting period	36 months
2007 Amended and Restated Plan \| Stock options \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price of stock options as a percentage of fair market value on the grant date	100.00%
2007 Amended and Restated Plan \| Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of the award vesting at first anniversary	50.00%
Percentage of the award vesting at second anniversary	50.00%
2007 Amended and Restated Plan \| Time-based RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Annual vesting percentage	25.00%
MSU Program \| Market Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 0	$ 0	$ 600,000
Number of measurement periods \| Item	2
MSU Program \| Market Stock Units \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target number of shares that participating executives may earn (as a percent)	150.00%

Stock Incentive Plan and Employee Stock Purchase Plan - Summary of Share-based Compensation Charges Included in the Company's Consolidated Statements of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Share-based compensation expenses
Share-based compensation expense	$ 9,332	$ 8,152	$ 10,601
Cost of revenue
Share-based compensation expenses
Share-based compensation expense	1,296	1,244	1,666
Research and development
Share-based compensation expenses
Share-based compensation expense	1,348	1,457	1,773
Selling and marketing
Share-based compensation expenses
Share-based compensation expense	1,457	1,159	2,081
General and administrative
Share-based compensation expenses
Share-based compensation expense	$ 5,231	$ 4,292	$ 5,081

Stock Incentive Plan and Employee Stock Purchase Plan - Schedule of Assumptions Used for Determining Fair Value of Stock Options (Details) - Stock options	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Weighted average assumptions used for determining fair value of options
Risk-free interest rate, Minimum (as a percent)	0.59%	1.14%	1.94%
Risk-free interest rate, Maximum (as a percent)	1.27%	1.53%	2.81%
Expected volatility, Minimum (as a percent)	54.70%	47.30%	47.00%
Expected volatility, Maximum (as a percent)	55.60%	48.90%	47.10%
Minimum
Weighted average assumptions used for determining fair value of options
Expected term (in years)	6 years 8 months 19 days	5 years 7 months 17 days	5 years 3 months 21 days
Maximum
Weighted average assumptions used for determining fair value of options
Expected term (in years)	6 years 10 months 17 days	5 years 7 months 20 days	5 years 6 months 3 days

Stock Incentive Plan and Employee Stock Purchase Plan - Schedule of Option Activity Under the Company's Incentive Plan (Details) - Stock options - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Options Outstanding
Balance at the beginning of the year (in shares)	5,956	5,220	2,684
Options granted (in shares)	1,526	2,305	3,359
Options exercised (in shares)	(209)		(115)
Options forfeited/expired (in shares)	(243)	(1,569)	(708)
Balance at the end of the year (in shares)	7,030	5,956	5,220	2,684
Vested or Expected to vest at the end of the year (in shares)	6,455
Exercisable at the end of the year (in shares)	3,417
Weighted Average Exercise Price
Balance at the beginning of the year (in dollars per share)	$ 3.82	$ 4.50	$ 5.26
Options granted (in dollars per share)	4.48	2.64	4.09
Options exercised (in dollars per share)	4.09		4.26
Options forfeited/expired (in dollars per share)	4.40	4.36	5.51
Balance at the end of the year (in dollars per share)	3.93	$ 3.82	$ 4.50	$ 5.26
Vested or Expected to vest at the end of the year (in dollars per share)	3.94
Exercisable at the end of the year (in dollars per share)	$ 4.09
Weighted Average Remaining Contractual Life (In Years)
Balance	7 years 7 months 28 days	8 years 14 days	7 years 11 months 19 days	6 years 1 month 28 days
Vested or Expected to vest at the end of the year	7 years 6 months 18 days
Exercisable at the end of the year	6 years 7 months 17 days
Aggregate Intrinsic Value (in thousands)
Balance at the beginning of the year	$ 5,036		$ 11	$ 60
Exercisable at the end of the year	$ 2,359

Stock Incentive Plan and Employee Stock Purchase Plan - Summary of Information about Outstanding and Exercisable Options (Details) - Stock options shares in Thousands	12 Months Ended
	Jun. 30, 2021 $ / shares shares
Options Outstanding
Number Outstanding \| shares	7,030
Weighted-Average Remaining Contractual Life (Years)	7 years 7 months 28 days
Weighted-Average Exercise Price (in dollars per share)	$ 3.93
Options Exercisable
Number Outstanding \| shares	3,417
Weighted-Average Exercise Price (in dollars per share)	$ 4.09
$2.60 – 2.60
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	2.60
Exercise price, high end of range (in dollars per share)	$ 2.60
Options Outstanding
Number Outstanding \| shares	1,729
Weighted-Average Remaining Contractual Life (Years)	8 years 4 months 2 days
Weighted-Average Exercise Price (in dollars per share)	$ 2.60
Options Exercisable
Number Outstanding \| shares	720
Weighted-Average Exercise Price (in dollars per share)	$ 2.60
$2.96 – 4.01
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	2.96
Exercise price, high end of range (in dollars per share)	$ 4.01
Options Outstanding
Number Outstanding \| shares	654
Weighted-Average Remaining Contractual Life (Years)	7 years 29 days
Weighted-Average Exercise Price (in dollars per share)	$ 3.55
Options Exercisable
Number Outstanding \| shares	434
Weighted-Average Exercise Price (in dollars per share)	$ 3.77
$4.10 – 4.10
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	4.10
Exercise price, high end of range (in dollars per share)	$ 4.10
Options Outstanding
Number Outstanding \| shares	2,393
Weighted-Average Remaining Contractual Life (Years)	7 years 5 months 1 day
Weighted-Average Exercise Price (in dollars per share)	$ 4.10
Options Exercisable
Number Outstanding \| shares	1,546
Weighted-Average Exercise Price (in dollars per share)	$ 4.10
$4.23 – 4.52
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	4.23
Exercise price, high end of range (in dollars per share)	$ 4.52
Options Outstanding
Number Outstanding \| shares	1,432
Weighted-Average Remaining Contractual Life (Years)	9 years 5 months 26 days
Weighted-Average Exercise Price (in dollars per share)	$ 4.47
Options Exercisable
Number Outstanding \| shares	2
Weighted-Average Exercise Price (in dollars per share)	$ 4.23
$4.64 – 7.7
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	4.64
Exercise price, high end of range (in dollars per share)	$ 7.7
Options Outstanding
Number Outstanding \| shares	822
Weighted-Average Remaining Contractual Life (Years)	4 years 2 months 4 days
Weighted-Average Exercise Price (in dollars per share)	$ 5.62
Options Exercisable
Number Outstanding \| shares	715
Weighted-Average Exercise Price (in dollars per share)	$ 5.75

Stock Incentive Plan and Employee Stock Purchase Plan - Summary of Activity of RSUs, PSUs and MSUs (Details) - $ / shares	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Restricted Stock Units
Total Number of Shares Underlying
Unvested at the beginning of the year (in shares)	3,171,000	3,084,000	3,700,000
Granted (in shares)	1,738,000	2,009,000	1,386,000
Vested (in shares)	(1,452,000)	(1,579,000)	(1,481,000)
Cancelled/Forfeited (in shares)	(539,000)	(343,000)	(521,000)
Unvested at the end of the year (in shares)	2,918,000	3,171,000	3,084,000
Weighted Average Grant Date Fair Value Per Share
Granted (in dollars per share)	$ 4.16	$ 2.74	$ 3.68
Performance Stock Units
Total Number of Shares Underlying
Unvested at the beginning of the year (in shares)	419,000		63,000
Granted (in shares)	280,000	419,000	0
Vested (in shares)	0	0	(10,000)
Cancelled/Forfeited (in shares)	(419,000)		(53,000)
Unvested at the end of the year (in shares)	280,000	419,000
Market Stock Units
Total Number of Shares Underlying
Unvested at the beginning of the year (in shares)	171,000	641,000	1,397,000
Granted (in shares)	0	0	0
Vested (in shares)	0	0	0
Cancelled/Forfeited (in shares)	(171,000)	(470,000)	(756,000)
Unvested at the end of the year (in shares)		171,000	641,000
Restricted Stock Units, Performance Stock Units and Market Stock Units
Total Number of Shares Underlying
Unvested at the beginning of the year (in shares)	3,761,000	3,725,000	5,160,000
Granted (in shares)	2,018,000	2,428,000	1,386,000
Vested (in shares)	(1,452,000)	(1,579,000)	(1,491,000)
Cancelled/Forfeited (in shares)	(1,129,000)	(813,000)	(1,330,000)
Unvested at the end of the year (in shares)	3,198,000	3,761,000	3,725,000
Weighted Average Grant Date Fair Value Per Share
Unvested at the beginning of the year (in dollars per share)	$ 3.26	$ 4.34	$ 5.03
Granted (in dollars per share)	4.16	2.74	3.68
Vested (in dollars per share)	3.52	4.62	5.44
Cancelled/Forfeited (in dollars per share)	3.20	3.96	5.10
Unvested at the end of the year (in dollars per share)	$ 3.73	$ 3.26	$ 4.34

Stock Incentive Plan and Employee Stock Purchase Plan - ESPP (Details) - ESPP	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Weighted average assumptions used for determining fair value of options
Risk-free interest rate, Minimum (as a percent)	0.04%	0.17%	2.11%
Risk-free interest rate, Maximum (as a percent)	0.10%	1.60%	2.72%
Expected volatility, Minimum (as a percent)	36.10%	45.46%	30.90%
Expected volatility, Maximum (as a percent)	65.58%	75.21%	60.00%
Minimum
Weighted average assumptions used for determining fair value of options
Expected term (in years)	6 months	6 months	6 months
Maximum
Weighted average assumptions used for determining fair value of options
Expected term (in years)	1 year	1 year	1 year

Joint Venture - Additional Information (Details) - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jan. 31, 2019
Schedule Of Equity Method Investments [Line Items]
Gain on contribution to joint venture		$ 12,964,000
Accumulated deficit	$ (488,024,000)	(481,713,000)
Goodwill	57,960,000	57,717,000	$ 57,770,000
Impairment of goodwill	$ 0	0	$ 0
Accuray Asia
Schedule Of Equity Method Investments [Line Items]
Percentage of ownership interest in joint venture	49.00%			49.00%
Gain on contribution to joint venture		13,000,000.0
Percentage of ownership interest in joint venture	49.00%
Accumulated deficit	$ 900,000
Deferred of intra-entity profit margin	2,100,000	$ 1,800,000
Previously deferred intra-entity margin from system sales	1,800,000
Deferral of intra entity margin from system sales	2,100,000
Equity method investment	15,900,000
Proportional share of underlying equity in net assets	13,700,000
Proportional share of underlying equity in net assets, difference amount	2,200,000
Elimination of equity method investment intra-entity profit on sales	2,100,000
Goodwill	4,400,000
Impairment of foreign currency exchange	100,000
Impairment of goodwill	$ 0

Joint Venture - Summary of Financial Information of Joint Ventures (Operations Data) (Details) - USD ($) $ in Thousands	3 Months Ended								6 Months Ended	12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Mar. 31, 2020	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2019
Schedule Of Equity Method Investments [Line Items]
Total net revenue	$ 110,936	$ 102,562	$ 97,456	$ 85,332	$ 94,977	$ 99,548	$ 98,826	$ 89,577		$ 396,289		$ 382,928	$ 418,785
Gross Profit	43,731	39,542	40,831	35,403	39,745	39,133	37,900	32,943		159,507		149,721	162,651
Net income (loss)	$ (11,092)	$ (390)	$ 4,769	$ 402	$ (152)	$ 2,625	$ 10,710	$ (9,356)		$ (6,311)		$ 3,827	$ (16,430)
CNNC Accuray (Tianjin) Medical Technology Co. Ltd.
Schedule Of Equity Method Investments [Line Items]
Total net revenue									$ 13,764		$ 33,054
Gross Profit									2,960		10,578
Net income (loss)									(306)		1,785
Net income (loss) attributable to the Company									$ (149)		$ 872

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Joint Venture - Summary of Financial Information of Joint Ventures (Balance Sheet Data) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2018
Schedule Of Equity Method Investments [Line Items]
Current assets	$ 352,773		$ 357,486
Total assets	480,098		490,927
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities	192,359		182,271
Stockholder's equity	68,840		63,635		$ 49,871	$ 48,632
Total liabilities and stockholders’ equity	$ 480,098		$ 490,927
CNNC Accuray (Tianjin) Medical Technology Co. Ltd.
Schedule Of Equity Method Investments [Line Items]
Current assets		$ 24,703		$ 16,776
Non current assets		23,089		16,125
Total assets		47,792		32,901
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities		16,854		9,064
Non current liabilities		1,467		1,412
Stockholder's equity		29,471		22,425
Total liabilities and stockholders’ equity		$ 47,792		$ 32,901

Income Taxes - Schedule of Components of Income (Loss) Before Provision for Income Taxes on the Accompanying Statements of Operations and Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Components of income (loss) before provision for income taxes
Domestic	$ (8,448)	$ (1,811)	$ (23,799)
Foreign	3,889	7,501	9,455
Income (loss) before provision for income taxes	$ (4,559)	$ 5,690	$ (14,344)

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Income Taxes - Schedule of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Current:
State	$ 17	$ 15	$ 32
Foreign	1,849	1,495	2,140
Total current	1,866	1,510	2,172
Deferred:
Foreign	(114)	353	(86)
Total deferred	(114)	353	(86)
Total provision for income taxes	$ 1,752	$ 1,863	$ 2,086

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Income Taxes - Schedule of Reconciliation of Income Taxes at the Statutory Federal Income Tax Rate to the Provision for Income Taxes Included in the Accompanying Consolidated Statements of Operations and Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
U.S. federal taxes (benefit):
At federal statutory rate	$ (958)	$ 1,195	$ (3,012)
State tax, net of federal benefit	17	15	32
Share-based compensation expense	879	810	1,128
Debt extinguishment	898
Other non-deductible permanent items	155	418	486
R&D credits	(1,278)	(635)	(877)
Foreign taxes	918	273	(38)
Other	(57)	(69)	58
Global Intangible Low-Taxed Income	243	1,185	1,924
Change in valuation allowance	935	(1,329)	2,385
Total provision for income taxes	$ 1,752	$ 1,863	$ 2,086

Income Taxes - Schedule of Significant Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Deferred tax assets:
Federal and state net operating losses	$ 75,033	$ 75,615
Accrued expenses and reserves	6,597	4,972
Lease liability	4,258	5,366
Deferred revenue	5,093	5,038
R&D Credits	24,340	22,843
Share-based compensation expense	1,096	1,337
Capitalized research and development	2,088	2,683
Unicap	1,827	2,105
Fixed assets/intangibles	1,055	1,199
Section 163(j) interest	1,817	1,823
Other	1,082	1,290
Total deferred tax assets	124,286	124,271
Deferred tax liabilities:
Contract acquisition costs	(1,174)	(977)
Right of use assets	(3,533)	(4,508)
Debt	(5,612)
Total deferred tax liabilities	(10,319)	(5,485)
Valuation allowance	(113,476)	(118,300)
Net deferred tax assets	$ 491	$ 486

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Income Taxes [Line Items]
Valuation allowance percentage established for domestic and foreign net assets	100.00%
Undistributed earnings of foreign subsidiaries	$ 46,300
Reduction in uncertain tax position due to lapse of various statutes of limitation	$ 20
Subsequent period within which no material changes in unrecognized tax benefits are expected	12 months
Gross unrecognized tax benefits	$ 18,765	$ 16,996	$ 16,280	$ 15,299
Uncertain tax benefits that, if realized, would affect the effective tax rate	18,600
Accrued interest and penalties related to uncertain tax positions	50	$ 40
Minimum
Income Taxes [Line Items]
Average annual prior gross receipts treshhold amount for exemption from base erosion and anti abuse tax	$ 500,000
Statutes of limitations with respect to jurisdictions (in years)	3 years
Maximum
Income Taxes [Line Items]
Statutes of limitations with respect to jurisdictions (in years)	10 years
Federal
Income Taxes [Line Items]
Net operating loss carryforwards	$ 321,300
Federal \| Research and development
Income Taxes [Line Items]
Tax credits	24,600
State
Income Taxes [Line Items]
Net operating loss carryforwards	132,200
State \| Research and development
Income Taxes [Line Items]
Tax credits	$ 21,000

Income Taxes - Schedule of Aggregate Changes in the Balance of Gross Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Aggregate changes in the balance of gross unrecognized tax benefits
Balance at beginning of year	$ 16,996	$ 16,280	$ 15,299
Tax positions related to current year: Additions	1,433	954	934
Tax positions related to prior years: Additions	786	286	580
Tax positions related to prior years: Reductions	(450)	(524)	(533)
Balance at end of year	$ 18,765	$ 16,996	$ 16,280

Employee Benefit Plan - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Compensation And Retirement Disclosure [Abstract]
Employer's contribution to the 401(k) Plan	$ 1.1	$ 2.0	$ 2.1

Defined Benefit Pension Obligation - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Defined Benefit Pension Obligation
Actuarial gain	$ 800
Defined benefit pension plan
Defined Benefit Pension Obligation
Actuarial gain	807	$ 615
Employer contributions	1,117	$ 1,327	$ 1,400
Expected total contributions to defined benefit pension plan for fiscal year 2022	$ 1,100
Defined benefit pension plan \| BVG
Plan Assets
Guaranteed interest rate for mandatory retirement savings (as a percent)	1.00%	1.00%
Long-term other liabilities
Defined Benefit Pension Obligation
Unfunded liability	$ 4,300

Defined Benefit Pension Obligation - Obligations and Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Change in benefit obligation:
Actuarial (gain)/loss	$ (800)
Amounts recognized within the consolidated balance sheets:
Assets	480,098	$ 490,927
Defined benefit pension plan
Change in benefit obligation:
Benefit obligation—beginning of fiscal year	18,426	17,577
Service cost	1,766	2,003	$ 1,865
Interest cost	38	62	128
Plan participants’ contributions	1,676	2,886
Plan amendment	25	975
Actuarial (gain)/loss	(807)	(615)
Foreign currency changes	281	545
Benefit and expense payments	(2,700)	(5,007)
Benefit obligation—end of fiscal year	18,705	18,426	17,577
Change in plan assets:
Plan assets—beginning of fiscal year	13,958	14,228
Employer contributions	1,117	1,327	1,400
Actual return on plan assets	199	112
Plan participants’ contributions	1,676	2,885
Foreign currency changes	169	413
Benefit and expense payments	(2,700)	(5,007)
Plan assets—end of fiscal year	14,419	13,958	$ 14,228
Funded status	(4,286)	(4,468)
Amounts recognized within the consolidated balance sheets:
Long-term other liabilities	4,286	4,468
Net amount recognized	$ 4,286	$ 4,468

Defined Benefit Pension Obligation - Amounts Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Amounts recognized within the consolidated balance sheets:
Assets	$ 480,098	$ 490,927
Defined benefit pension plan
Amounts recognized within the consolidated balance sheets:
Long-term other liabilities	(4,286)	(4,468)
Net amount recognized	(4,286)	(4,468)
Amounts recognized in accumulated other comprehensive loss (before tax)
Net loss	(1,236)	(1,000)
Total recognized in other comprehensive income (loss)	872	(236)	$ (856)
Accumulated other comprehensive loss	(364)	(1,236)
Accumulated benefit obligations in excess of fair value of plan assets:
Projected benefit obligation	18,705	18,426
Accumulated benefit obligation	16,891	16,175
Fair value of plan assets	$ 14,419	$ 13,958

Defined Benefit Pension Obligation - Components of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Loss (Details) - Defined benefit pension plan - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2022
Net Periodic Benefit Costs:
Service cost	$ 1,766	$ 2,003	$ 1,865
Interest cost	38	62	128
Expected returns on assets	(142)	(151)	(170)
Amortization of prior service cost	54	(2)	(55)
Settlement charges		178
Net periodic benefit costs	1,716	2,090	1,768
Other Amounts Recognized in Other Comprehensive Loss:
Net (gain) loss arising during the year	(850)	(593)	801
Prior service cost	(54)	2
Amortization of prior service cost	24	1,005	55
Effect of settlement	8	(178)
Total recognized in other comprehensive (gain) loss	(872)	236	856
Total recognized in net periodic benefit costs and other comprehensive loss	$ 844	$ 2,326	$ 2,624
Scenario Forecast
Amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost during fiscal year 2021
Net loss				$ (188)
Prior service credit				479
Accumulated other comprehensive loss				$ 291

Defined Benefit Pension Obligation - Assumptions (Details) - Defined benefit pension plan	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Net Periodic Benefit Costs:
Discount rate (as a percent)	0.40%	0.25%	0.45%
Rate of compensation increase (as a percent)	1.50%	1.50%	1.50%
Expected long-term return on assets (as a percent)	1.00%	1.00%	1.20%
Benefit Obligation:
Discount rate (as a percent)	0.40%	0.25%
Rate of compensation increase (as a percent)	1.50%	1.50%

Defined Benefit Pension Obligation - Estimated Contributions and Future Benefit Payments (Details) - Defined benefit pension plan $ in Thousands	Jun. 30, 2021 USD ($)
Future Benefit Payments
2022	$ 891
2023	891
2024	889
2025	1,062
2026	903
Thereafter	6,280
Total	$ 10,916

Segment Disclosure - Additional Information (Details)	12 Months Ended
Segment Disclosure - Additional Information (Details)	Jun. 30, 2021 segment
Segment Reporting [Abstract]
Number of operating segments	1
Number of reportable segments	1

Segment Disclosure - Summary of Revenue by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Segment Information
Total net revenue	$ 110,936	$ 102,562	$ 97,456	$ 85,332	$ 94,977	$ 99,548	$ 98,826	$ 89,577	$ 396,289	$ 382,928	$ 418,785
Americas
Segment Information
Total net revenue									105,878	128,562	135,683
Europe, Middle East, India and Africa
Segment Information
Total net revenue									121,568	119,989	149,095
Asia Pacific, excluding Japan and China
Segment Information
Total net revenue									26,425	31,297	44,136
Japan
Segment Information
Total net revenue									62,636	72,688	70,214
China
Segment Information
Total net revenue									$ 79,782	$ 30,392	$ 19,657