0001047469-16-015108 | 10-K | XBRL Viewer

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Jun. 30, 2016	Aug. 15, 2016	Dec. 31, 2015
Document and Entity Information
Entity Registrant Name	ACCURAY INC
Entity Central Index Key	0001138723
Document Type	10-K
Document Period End Date	Jun. 30, 2016
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 545,639,436
Entity Common Stock, Shares Outstanding		81,574,692
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Current assets:
Cash and cash equivalents	$ 119,771	$ 79,551
Short-term investments	47,239	64,306
Restricted cash	891	3,734
Accounts receivable, net of allowance for doubtful accounts of $826 and $709, respectively	56,810	77,727
Inventories	115,987	106,151
Prepaid expenses and other current assets	16,098	15,991
Deferred cost of revenue	4,884	6,869
Total current assets	361,680	354,329
Property and equipment, net	27,878	31,829
Goodwill	57,848	58,054
Intangible assets, net	7,611	15,564
Deferred cost of revenue	1,996	1,500
Other assets	12,020	5,497
Total assets	469,033	466,773
Current liabilities:
Accounts payable	15,229	13,096
Accrued compensation	18,725	21,934
Other accrued liabilities	22,184	18,720
Short-term debt	39,900
Customer advances	22,123	19,385
Deferred revenue	92,051	96,780
Total current liabilities	210,212	169,915
Long-term liabilities:
Long-term other liabilities	10,984	10,934
Deferred revenue	17,665	10,489
Long-term debt	170,512	199,655
Total liabilities	409,373	390,993
Commitments and contingencies (Note 7)
Stockholders' Equity:
Preferred stock, $0.001 par value; authorized: 5,000,000 shares; no shares issued and outstanding
Common stock, $0.001 par value; authorized: 200,000,000 shares as of June 30, 2016 and 2015 respectively; issued and outstanding: 81,378,208 and 79,477,838 shares at June 30, 2016 and 2015, respectively	81	79
Additional paid-in capital	481,346	471,430
Accumulated other comprehensive loss	(960)	(426)
Accumulated deficit	(420,807)	(395,303)
Total stockholders' equity	59,660	75,780
Total liabilities and stockholders' equity	$ 469,033	$ 466,773

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Consolidated Balance Sheets
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 826	$ 709
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, authorized shares	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized shares	200,000,000	200,000,000
Common stock, issued shares	81,378,208	79,477,838
Common stock, outstanding shares	81,378,208	79,477,838

Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Net revenue:
Products	$ 193,299	$ 178,710	$ 173,607
Services	205,501	201,091	195,812
Total net revenue	398,800	379,801	369,419
Cost of revenue:
Cost of products	108,671	104,549	97,592
Cost of services	131,416	129,850	129,027
Total cost of revenue	240,087	234,399	226,619
Gross profit	158,713	145,402	142,800
Operating expenses:
Research and development	56,652	55,752	53,724
Selling and marketing	56,812	62,440	61,885
General and administrative	50,122	46,379	45,335
Total operating expenses	163,586	164,571	160,944
Loss from operations	(4,873)	(19,169)	(18,144)
Other expense, net	(18,295)	(18,621)	(14,216)
Loss before provision for income taxes	(23,168)	(37,790)	(32,360)
Provision for income taxes	2,336	2,419	3,088
Net loss	$ (25,504)	$ (40,209)	$ (35,448)
Loss per share attributable to stockholders
Net loss-basic and diluted (in dollars per share)	$ (0.32)	$ (0.51)	$ (0.47)
Weighted average shares used in computing loss per share Basic and Diluted	80,509	78,277	75,804
Net loss	$ (25,504)	$ (40,209)	$ (35,448)
Foreign currency translation adjustments	(48)	(1,196)	25
Unrealized gain (loss) on investments	63	(95)	475
Change in defined benefit pension obligation	(549)	(950)	(567)
Comprehensive loss	$ (26,038)	$ (42,450)	$ (35,515)

Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total Stockholders' Equity	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Balance at Jun. 30, 2013	$ 106,835	$ 75	$ 424,524	$ 1,882	$ (319,646)
Balance (in shares) at Jun. 30, 2013		74,587,231
Increase (Decrease) in Stockholders' Equity
Exercise of stock options, net	5,312	$ 1	5,311
Exercise of stock options, net (in shares)		1,061,513
Issuance of restricted stock	1	$ 1
Issuance of restricted stock (in shares)		913,070
Issuance of common stock under employee stock purchase plan	3,536		3,536
Issuance of common stock under employee stock purchase plan (in shares)		650,315
Share-based compensation	11,038		11,038
Embedded conversion feature on Convertible Note (Note 11)	7,844		7,844			$ 7,844
Unamortized Convertible Senior Note issuance costs reclassified to equity	(243)		(243)
Tax withholding upon vesting of restricted stock units	(260)		(260)
Tax withholding upon vesting of restricted stock units (in shares)		(33,764)
Net loss	(35,448)				(35,448)	(35,448)
Cumulative translation adjustment	25			25		25
Unrealized gain (loss) on investments, net of tax	475			475		475
Change in defined benefit pension obligation	(567)			(567)		(567)
Balance at Jun. 30, 2014	98,548	$ 77	451,750	1,815	(355,094)
Balance (in shares) at Jun. 30, 2014		77,178,365
Increase (Decrease) in Stockholders' Equity
Exercise of stock options, net	2,563		2,563
Exercise of stock options, net (in shares)		529,331
Issuance of restricted stock		$ 1	(1)
Issuance of restricted stock (in shares)		1,174,531
Issuance of common stock under employee stock purchase plan	4,033	$ 1	4,032
Issuance of common stock under employee stock purchase plan (in shares)		719,279
Share-based compensation	13,746		13,746
Tax withholding upon vesting of restricted stock units	(660)		(660)
Tax withholding upon vesting of restricted stock units (in shares)		(123,668)
Net loss	(40,209)				(40,209)	(40,209)
Cumulative translation adjustment	(1,196)			(1,196)		(1,196)
Unrealized gain (loss) on investments, net of tax	(95)			(95)		(95)
Change in defined benefit pension obligation	(950)			(950)		(950)
Balance at Jun. 30, 2015	75,780	$ 79	471,430	(426)	(395,303)	$ 75,780
Balance (in shares) at Jun. 30, 2015		79,477,838				79,477,838
Increase (Decrease) in Stockholders' Equity
Exercise of stock options, net	285		285
Exercise of stock options, net (in shares)		58,279
Issuance of restricted stock		$ 2	(2)
Issuance of restricted stock (in shares)		1,570,577
Issuance of common stock under employee stock purchase plan	3,588		3,588
Issuance of common stock under employee stock purchase plan (in shares)		729,259
Share-based compensation	12,396		12,396
Unamortized Convertible Senior Note issuance costs reclassified to equity	(3,519)		(3,519)
Tax withholding upon vesting of restricted stock units	(2,832)		(2,832)
Tax withholding upon vesting of restricted stock units (in shares)		(457,745)
Net loss	(25,504)				(25,504)	$ (25,504)
Cumulative translation adjustment	(48)			(48)		(48)
Unrealized gain (loss) on investments, net of tax	63			63		63
Change in defined benefit pension obligation	(549)			(549)		(549)
Balance at Jun. 30, 2016	$ 59,660	$ 81	$ 481,346	$ (960)	$ (420,807)	$ 59,660
Balance (in shares) at Jun. 30, 2016		81,378,208				81,378,208

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Cash Flows From Operating Activities
Net loss	$ (25,504)	$ (40,209)	$ (35,448)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	18,296	19,493	20,564
Share-based compensation	12,638	13,930	11,313
Amortization of debt issuance costs	1,728	1,503	1,408
Amortization and accretion of investment premiums/discounts	801	1,018	1,584
Accretion of interest on long term debt	6,321	7,241	5,105
Provision for bad debt	127	(14)	(707)
Provision for write-down of inventories	2,444	1,507	2,836
Loss on disposal of property and equipment	153	62	666
Loss on extinguishment of debt	965
Provision (benefit) for deferred income taxes	(404)	664	92
Changes in assets and liabilities:
Restricted cash	2,660	(2,353)	(163)
Accounts receivable	22,951	(8,331)	(14,786)
Inventories	(10,502)	(21,094)	(8,341)
Prepaid expenses and other assets	(5,988)	2,271	(5,241)
Deferred cost of revenue	1,452	7,776	(4,875)
Accounts payable	2,404	(1,822)	(1,057)
Accrued liabilities	(1,944)	(8,614)	21,696
Customer advances	2,578	577	1,744
Deferred revenue	2,362	9,662	3,956
Net cash provided by (used in) operating activities	33,538	(16,733)	346
Cash Flows From Investing Activities
Purchases of property and equipment, net	(8,066)	(10,445)	(11,931)
Purchases of investments	(64,356)	(107,162)	(44,155)
Sales and maturities of investments	80,684	121,296	64,578
Net cash provided by investing activities	8,262	3,689	8,492
Cash Flows From Financing Activities
Proceeds from issuance of common stock	3,849	6,555	9,054
Repayments of debt	(66,406)		(417)
Proceeds from debt, net of costs	64,632
Taxes paid related to net share settlement of equity awards	(2,832)	(660)	(260)
Net cash provided by (used in) financing activities	(757)	5,895	8,377
Effect of exchange rate changes on cash and cash equivalents	(823)	(5,646)	1,818
Net increase (decrease) in cash and cash equivalent	40,220	(12,795)	19,033
Cash and cash equivalents at beginning of period	79,551	92,346	73,313
Cash and cash equivalents at end of period	119,771	79,551	92,346
Supplemental Disclosure of Cash Flow Information
Cash paid for income taxes	1,026	3,184	2,499
Cash paid for interest	10,340	7,207	8,208
Non-cash financing activity:
Exchange of Convertible Notes (Note 13)			7,844
Purchases of property and equipment recorded in accounts payable and accrued liabilities	218	$ 638	$ 1,142
Transfers of equipment to inventory	$ 1,660

Description of Business	12 Months Ended
Description of Business	Jun. 30, 2016
Description of Business
Description of Business	1. Description of Business Organization Accuray Incorporated (together with its subsidiaries, the "Company" or "Accuray") is incorporated in Delaware. The Company designs, develops and sells advanced radiosurgery and radiation therapy systems for the treatment of tumors throughout the body. The Company conducts its business worldwide. The Company has its headquarters in Sunnyvale, California, with additional locations worldwide.

Summary of Significant Accounting Policies

12 Months Ended

Jun. 30, 2016

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Basis of Presentation and Principles of Consolidation

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

Balance Sheet Reclassification

Debt issuance costs of $3.2 million were reclassified from other assets to long-term debt in the prior year's consolidated balance sheet to conform to the current year presentation upon the adoption of Accounting Standard Update (ASU) No. 2015-03 as discussed below in Accounting Standard Update Recently Adopted.

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. Key estimates and assumptions made by the Company relate to revenue recognition, business combinations and assessment of recoverability of goodwill and intangible assets, 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 income (expense), net, in the Company's consolidated statements of operations and comprehensive 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 5, Financial Instruments, 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.

Investments

The Company classifies all its investments as available-for-sale at the time of purchase since it is management's intent that these investments be available for current operations, and as such, includes these investments as short-term investments on its balance sheets. These investments primarily consist of commercial paper, U.S. treasury securities, and U.S. government agency and corporate debt securities. Short-term investments classified as available-for-sale are recorded at fair market value with the related unrealized gains and losses included in accumulated other comprehensive income (loss), as a separate component of stockholders' equity. Realized gains and losses on the sale of securities are determined by specific identification of each security's cost basis. The Company regularly reviews its investment portfolio to determine if any security is other-than-temporarily impaired, which would require it to record an impairment charge in the period any such determination is made. In making this judgment, management evaluates, among other things, the duration and extent to which the fair value of a security is less than its cost, the financial condition of the issuer and any changes thereto, and management's intent to sell, or whether it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. Other expense, net, includes interest, dividends, amortization of purchase premiums and discounts, realized gains and losses on sales of securities and other-than-temporary declines in the fair value of securities, if any.

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 has placed its investments with high-credit quality issuers. The Company does not invest an amount exceeding 5% of its combined cash, cash equivalents and investments in the securities of any one obligor or maker, except for obligations of the United States government, obligations of United States government agencies and money market accounts.

One customer represented more than 10% of total net revenue for the year ended June 30, 2016 and no customer represented 10% or more of total net revenue for the years ended June 30, 2015 and 2014. One customer accounted for 18% of accounts receivable at June 30, 2016 and 2015.

Accounts receivable are typically not collateralized. 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 doubtful accounts 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 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 market 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 is primarily derived from sales of CyberKnife and TomoTherapy Systems and services, which include post-contract customer support or PCS, installation services, training and other professional services. The Company records its revenues net of any value added or sales tax. In all sales arrangements, the Company recognizes revenues when there is persuasive evidence of an arrangement, the fee is fixed or determinable, collection of the fee is reasonably assured and delivery has occurred. Payments received in advance of system shipment are recorded as customer advances and are recognized as revenue or deferred revenue upon product shipment or installation. The Company assesses the probability of collection based on a number of factors, including past transaction history with the customer and credit-worthiness of the customer. The Company generally does not request collateral from its customers. If the Company determines that collection is not reasonably assured, the Company will defer the fee and recognize revenue upon receipt of cash.

The Company frequently enters into sales arrangements that contain multiple elements or deliverables. For sale arrangements that contain multiple elements, the Company allocates the arrangement consideration to each element based on the relative selling price method, whereby the relative selling price of each deliverable is determined using vendor specific objective evidence (VSOE) of fair value, if it exists. VSOE of fair value for each element is based on the Company's standard rates charged for the product or service when such product or service is sold separately or based upon the price established by the Company's pricing committee when that product or service is not yet being sold separately. When the Company is not able to establish VSOE for all deliverables in an arrangement with multiple elements, which may be due to the Company infrequently selling each element separately, not pricing products within a narrow range, or only having a limited sales history, the Company attempts to determine the selling price of each element based on third-party evidence of selling price (TPE), as determined based on competitors' prices for similar deliverables when sold separately. When the Company is not able to establish selling price using VSOE or TPE, the Company uses its best estimate of selling price (BESP), in its allocation of arrangement consideration. The objective of BESP is to determine the price at which the Company would transact a sale if the product or service were sold on a stand-alone basis. The Company determines BESP for a product or service by considering multiple factors including, but not limited to, pricing practices, internal costs, geographies and gross margin. The determination of BESP is made through annual analysis of the Company's pricing practices and adjusted if necessary.

The Company has a limited number of software offerings which are not required to deliver its systems' essential functionality and can be sold separately. The Company accounts for the separate sale of its software products in accordance with the applicable guidance for software revenue recognition. The Company's multiple-element arrangements may also include software deliverables that are subject to the software revenue recognition guidance; and in these cases, the revenue for these multiple-element arrangements is allocated to the software deliverable and the non-software deliverables based on the relative selling prices of all of the deliverables in the arrangement using VSOE, TPE or BESP.

The Company regularly reviews VSOE, TPE and BESP for all of its products and services. As the Company's go-to-market strategies and other factors change, the Company may modify its pricing practices in the future, which may impact the selling prices of systems and services as well as VSOE, TPE and BESP of systems and services. As a result, the Company's future revenue recognition for multiple element arrangements could differ materially from that recorded in the current period.

Product Revenue

The majority of product revenue is generated from sales of CyberKnife and TomoTherapy systems. If the Company is responsible for installation, the Company recognizes revenue after installation and acceptance of the system. Otherwise, revenue is generally recognized upon delivery, assuming all other revenue recognition criteria are met.

The Company could sell its systems with PCS contracts, installation services, training, and at times, professional services. PCS contracts provide planned and corrective maintenance services, software updates, bug fixes, as well as call-center support.

The Company records revenues from sales of systems, product upgrades and accessories to distributors depending on the terms of the distribution agreement as well as terms and conditions executed for each sale, and once all revenue recognition criteria have been met.

The Company's agreements with customers and distributors for system sales generally do not contain product return rights. Certain distributor agreements include parts inventory buy-back provisions upon distributorship termination. The Company accrues an inventory buy-back liability when and if such distributorship termination is expected and the liability can be estimated.

Service Revenue

Service revenue is generated primarily from PCS (warranty period services and post warranty services), installation services, training, and professional services. PCS revenue is deferred and recognized over the service period. Installation service revenue is recognized concurrent with system revenue. Training revenues are recognized when services are performed, and professional service revenues that are not deemed essential to the functionality of the systems are recognized as such services are performed.

Costs associated with service revenue are expensed when incurred, except when those costs are related to system upgrades where revenue recognition has been deferred. In those cases, the incremental costs are deferred and are recognized over the period of revenue recognition.

Deferred Revenue and Deferred Cost of Revenue

Deferred revenue consists of deferred product revenue and deferred service revenue. Deferred product revenue arises from timing differences between the shipment of product and satisfaction of all revenue recognition criteria consistent with the Company's revenue recognition policy. Deferred service revenue results from the advance payment for services to be delivered over a period of time, usually one year. Deferred cost of revenue consists of the direct costs associated with the manufacturing of units and direct service costs for which the revenue has been deferred in accordance with the Company's revenue recognition policies. Deferred revenue and associated deferred cost of revenue expected to be realized within one year are classified as current liabilities and current assets, respectively.

Customer Advances

Customer advances represent payments made by customers in advance of product shipment.

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

The Company capitalizes certain costs associated with obtaining or developing internal use software, including external direct costs of material and services. Software development costs relating to assets to be sold in the normal course of business are included in research and development and are expensed as incurred until technological feasibility is established. After technological feasibility is established, material software development costs are capitalized. The capitalized cost is then amortized on a straight-line basis over the estimated product life, or on the ratio of current revenues to total projected product revenue, whichever is greater. To date, the period between achieving technological feasibility, which the Company has defined as the establishment of a working model which typically occurs when the beta testing commences, and the general availability of such software has been short and software development costs qualifying for capitalization have been insignificant.

Capitalized software costs are included in property, plant and equipment and amortized beginning when the software project is complete and the assets are ready for their intended use.

Impairment of Long-Lived Assets

The Company reviews long-lived assets, including intangible assets, 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 implied 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. There was no impairment of goodwill identified in the fiscal years ended June 30, 2016, 2015 and 2014.

Purchased intangible assets other than goodwill, including developed technology and distributor license, 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 six years.

Acquisition-related expenses and restructuring costs are recognized separately from the business combination and are expensed as incurred.

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 $0.3 million, $0.5 million and $0.6 million for the years ended June 30, 2016, 2015 and 2014, respectively.

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 salaries, 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 stock units (PSUs), market stock units (MSUs) and employee stock purchase plan (ESPP) awards (collectively, awards).

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 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 graded 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. 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. Stock options expire ten years from the date of grant.

Share-based compensation expense for stock options, RSUs, PSUs and the ESPP is based on awards ultimately expected to vest, and the expense is recorded net of estimated forfeitures. 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 Loss Per Common Share

Basic and diluted net loss per share is computed by dividing net loss attributable to stockholders by the weighted average number of common shares outstanding during the year.

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

	Years ended June 30,
(in thousands)	2016			2015			2014
Numerator:
Net loss used in computing net loss per share	$	(25,504	)	$	(40,209	)	$	(35,448	)


Denominator:
Weighted average shares used in computing basic and diluted net loss per share		80,509			78,277			75,804

The potentially dilutive shares of the Company's common stock resulting from the assumed exercise of outstanding stock options, the vesting of RSUs, MSUs and PSUs, and the purchase of shares under the ESPP, as determined under the treasury stock method, are excluded from the computation of diluted net loss per share because their effect would have been anti-dilutive. The 3.75% Convertible Senior Notes due August 1, 2016 (the "3.75% Convertible Notes"), the 3.50% Convertible Senior Notes due February 1, 2018 (the "3.50% Convertible Notes") and the 3.50% Series A Convertible Notes (the "3.50% Series A Convertible Notes") due February 1, 2018 are included in the calculation of diluted net income per share only if their inclusion is dilutive. For the years ended June 30, 2016, 2015 and 2014, the potentially dilutive shares under the Convertible Notes were excluded from the calculation of diluted net loss per share as their inclusion would have been anti-dilutive. The following table sets forth all potentially dilutive securities excluded from the computation in the table above because their effect would have been anti-dilutive:

	As of June 30,
(in thousands)	2016		2015		2014
Stock options		2,377		2,537		3,209
RSUs, PSUs and MSUs		5,467		4,483		3,947
3.75% Convertible Notes		—		—		—
3.50% Convertible Notes		8,378		8,378		8,378
3.50% Series A Convertible Notes		—		2,896		4,985

		16,222		18,294		20,519

Outstanding Convertibles Notes—Diluted Share Impact

The 3.75% Convertible Notes and 3.50% Series A Convertible Notes have an optional physical (share), cash or combination settlement feature and contain certain conditional conversion features. Due to the optional cash settlement feature and management's intent to settle the principal amount thereof in cash, the conversion shares underlying the outstanding principal amount of the 3.75% Convertible Notes and 3.50% Series A Convertible Notes, totaling approximately 3.9 million shares and 13.2 million shares, respectively, were not included in the potentially diluted share count table above. The Company's average stock price did not exceed the conversion price of the 3.75% Convertible Notes as of June 30, 2016, 2015 and 2014. The number of premium shares included in the Company's diluted share count will vary with fluctuations in the Company's share price. Higher actual share prices result in a greater number of premium shares.

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 Loss

The components of comprehensive loss consist of net loss, unrealized gains and losses on available-for-sale investments, changes in foreign currency exchange rate translation and net changes related to a defined benefit pension plan. The unrealized gains and losses on available-for-sale investments, 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. The resulting cumulative translation adjustments are recorded directly to the accumulated other comprehensive loss account in stockholders' equity. Revenues and expenses are translated at average exchange rates in effect during the period.

Recent Accounting Standard Updates Not Yet Effective

In June 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standard Update (ASU) No. 2016-13 (ASU 2016-13) Measurement of Credit Losses on Financial Instruments. ASU 2016-13 requires measurement and recognition of expected credit losses for financial assets held. This guidance will become effective for the Company beginning in the third quarter of fiscal year 2020 and must be adopted using a modified retrospective approach, with certain exceptions. Early adoption is permitted beginning in the third quarter of fiscal year 2019. The Company is evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures.

In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting (Topic 718) (ASU 2016-09). The new guidance simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The amendments in this standard are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted. The Company is currently evaluating the impact of the pending adoption of this guidance on its consolidated financial statements and related disclosures.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (ASU 2016-02). Under the new guidance, a lessee will be required to recognize assets and liabilities for all leases with lease terms of more than 12 months. Consistent with current U.S. GAAP, the recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its classification as a finance or operating lease. ASU 2016-02 requires additional disclosures. The standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. ASU 2016-02 requires adoption based upon a modified retrospective transition approach. Early adoption is permitted. The Company is currently evaluating the impact of the pending adoption of ASU 2016-02 on its consolidated financial statements and related disclosures.

In January 2016, the FASB issued ASU No. 2016-01 (ASU 2016-01) Recognition and Measurement of Financial Assets and Financial Liabilities. ASU 2016-01 changes accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. In addition, it clarified guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The guidance will become effective for the Company beginning in the third quarter of fiscal year 2018 and must be adopted using a modified retrospective approach, with certain exceptions. Early adoption is permitted for certain provisions. The Company is evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers: Topic 606 (ASU 2014-09), to supersede nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. ASU 2014-09 defines a five step process to achieve this core principle and, in doing so, it is possible more judgment and estimates may be required within the revenue recognition process than required under existing U.S. GAAP including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. ASU 2014-09 is required to be adopted, using either of two methods: (i) retrospective to each prior reporting period presented with the option to elect certain practical expedients as defined within ASU 2014-09; or (ii) retrospective with the cumulative effect of initially applying ASU 2014-09 recognized at the date of initial application and providing certain additional disclosures as defined per ASU 2014-09. On July 9, 2015, the FASB approved a one year deferral of the effective period of ASU 2014-09. The standard will be effective for the Company for fiscal year 2019, but entities will be permitted to early adopt the standard as of the original effective date. The FASB issued supplemental adoption guidance and clarification to ASU 2014-09 in March 2016, April 2016 and May 2016 within ASU 2016-08 Revenue From Contracts With Customers: Principal vs. Agent Considerations, ASU 2016-10 Revenue From Contracts with Customers: Identifying Performance Obligations and Licensing, and ASU 2016-12 Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients, respectively. The Company has not yet selected a transition method and is currently evaluating the impact of pending adoption of these standards on its consolidated financial statements and related disclosures.

Accounting Standard Update Recently Adopted

In November 2015, FASB issued ASU No. 2015-17 (Topic 740), Balance Sheet Classification of Deferred Taxes (ASU 2015-17). The Company adopted ASU 2015-17 in its fiscal fourth quarter, an amended standard that requires deferred tax liabilities and assets to be classified as noncurrent in the consolidated balance sheet. This ASU is effective for fiscal years beginning after December 2015, which would be effective the first quarter of fiscal 2017 for the Company. Early adoption is permitted for financial statements that have not been previously issued. ASU 2015-17 may be applied either prospectively to all deferred tax liabilities and assets or retrospectively to all periods presented. The Company has adopted this ASU on a retrospective basis to the comparable period presented at June 30, 2016 and it did not have a significant impact on the Company's financial statements.

In April 2015, FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs (ASU 2015-03). The Company adopted ASU 2015-03 in its fiscal third quarter, an amended standard simplifying the presentation of debt issuance costs as a direct deduction from the carrying value of the debt liability rather than showing the debt issuance costs as an asset. ASU 2015-17 is effective for fiscal years beginning after December 2015, which would be effective the first quarter of fiscal 2017 for the Company. Early adoption is permitted under ASU 2015-17. Accordingly, ASU 2015-03 was applied retrospectively to the comparable period presented and it did not have a significant impact on the Company's financial statements.

Balance Sheet Components

12 Months Ended

Jun. 30, 2016

Balance Sheet Components

Balance Sheet Components

3. Balance Sheet Components

Cash and Cash Equivalents

The following is a summary of cash and cash equivalents:

(in thousands)	June 30, 2016		June 30, 2015
Cash	$	95,906	$	73,444
Money market funds		13,362		6,107
Commercial paper		8,938		—
Municipal government securities		1,565		—

	$	119,771	$	79,551

Accounts receivable, net

Accounts receivable, net consisted of the following:

(in thousands)	June 30, 2016			June 30, 2015
Accounts receivable	$	54,974		$	75,631
Unbilled fees and services		2,662			2,805

		57,636			78,436
Less: Allowance for doubtful accounts		(826	)		(709	)

Accounts receivable, net	$	56,810		$	77,727

The Company received payment or had credits of $0.2 million, added $0.3 million and wrote off $0.01 million from the allowance for doubtful accounts in fiscal 2016. The Company received payment or had credits of $0.4 million, added $0.4 million and wrote off $0.2 million from the allowance for doubtful accounts in fiscal 2015.

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 and capital leases, totaled $7.6 million and $1.6 million at June 30, 2016 and 2015, respectively, and are included in Other Assets in the consolidated balance sheets. Of the $7.6 million in financing receivables at June 30, 2016, $3.5 million related to sales-type leases with customers while the remaining $4.1 million related to contractual maturities of more than one year. At June 30, 2015, the $1.6 million related to contractual maturities of more than one year with no capital leases. Due to the homogenous nature of the leasing transactions, the Company manages them on an aggregate basis when assessing and monitoring credit risk. The Company evaluates the credit quality of an obligor at lease 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 term of the lease and the inclusion of credit enhancements, such as guarantees, letters of credit or security deposits. Accounts rated as low risk typically have the equivalent of a Moody's rating of Baa3 or higher, while accounts rated as moderate risk generally have the equivalent of a Ba1 or lower. 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 payments. As of June 30, 2016, the sales-type lease portion of the financing receivables was rated at a moderate risk. The Company performed an assessment of the allowance for credit losses related to its financing receivables as of June 30, 2016. Based upon such assessment, the Company did not record an allowance for credit losses related to such financing receivables as of June 30, 2016 and 2015, respectively.

A summary of the Company's financing receivables is presented as follows:

June 30, 2016 (in thousands)	Lease Receivables			Financed Service Contracts and Other		Total
Gross	$	4,998		$	5,840	$	10,838
Residual value		—			—		—
Unearned income		(623	)		—		(623	)
Allowance for credit loss		—			—		—

Total, net	$	4,375		$	5,840		10,215


Reported as:
Current	$	840		$	1,778	$	2,618
Non-current		3,535			4,062		7,597

Total, net	$	4,375		$	5,840	$	10,215

June 30, 2015 (in thousands)	Lease Receivables		Financed Service Contracts and Other		Total
Gross	$	—	$	2,674	$	2,674
Residual value		—		—		—
Unearned income		—		—		—
Allowance for credit loss		—		—		—

Total, net	$	—	$	2,674		2,674


Reported as:
Current	$	—	$	1,032	$	1,032
Non-current		—		1,642		1,642

Total, net	$	—	$	2,674	$	2,674

Actual cash collections may differ from the contracted maturities due to early customer buyouts, refinancing, or defaults. Future minimum lease payments to be received as of June 30, 2016 are presented as follows:

Year Ending June 30, (in thousands)	Amount
2017	$	1,046
2018		930
2019		930
2020		930
2021		930
2022		232

Total	$	4,998

Inventories

Inventories consisted of the following:

(in thousands)	June 30, 2016		June 30, 2015
Raw materials	$	50,480	$	46,356
Work-in-process		20,190		15,445
Finished goods		45,317		44,350

Inventories	$	115,987	$	106,151

Property and Equipment, net

Property and equipment consisted of the following:

(in thousands)	June 30, 2016			June 30, 2015
Furniture and fixtures	$	4,527		$	4,674
Computer and office equipment		11,485			11,808
Software		11,104			10,992
Leasehold improvements		21,632			19,428
Machinery and equipment		47,171			47,031
Construction in progress		4,412			8,273

		100,331			102,206
Less: Accumulated depreciation		(72,453	)		(70,377	)

Property and equipment, net	$	27,878		$	31,829

Depreciation and amortization expense related to property and equipment for the years ended June 30, 2016, 2015 and 2014 was $10.3 million, $11.6 million and $12.2 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			Unrealized Gains and Losses on Available- for-Sale Securities			Change in Defined Benefit Pension Obligation			Total
Balance at June 30, 2014	$	2,364		$	18		$	(567	)	$	1,815
Other comprehensive income (loss) before reclassifications		(1,196	)		(99	)		(950	)		(2,245	)
Amounts reclassified from accumulated other comprehensive income		—			4			—			4

Net current period other comprehensive loss		(1,196	)		(95	)		(950	)		(2,241	)

Balance at June 30, 2015		1,168			(77	)		(1,517	)		(426	)
Other comprehensive income (loss) before reclassifications		(47	)		63			(549	)		(533	)
Amounts reclassified from accumulated other comprehensive income		—			(1	)		—			(1	)

Net current period other comprehensive income (loss)		(47	)		62			(549	)		(534	)

Balance at June 30, 2016	$	1,121		$	(15	)	$	(2,066	)	$	(960	)

Foreign Exchange Instruments

12 Months Ended

Jun. 30, 2016

Foreign Exchange Instruments

Foreign Exchange Instruments

4. Foreign Exchange Instruments

The Company utilizes foreign currency forward contracts with well-known financial institutions to manage its exposure of fluctuations in foreign currency exchange rates on certain intercompany balances and foreign currency denominated cash and customer receivables. 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. There were no outstanding foreign currency forward contracts at the end of fiscal years 2016 and 2015.

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)	2016			2015			2014
Foreign currency exchange gain (loss) on foreign contracts	$	(4,155	)	$	(1,355	)	$	(2,144	)
Foreign currency transactions gain (loss)		2,141			(1,196	)		2,053

- Definition

The entire disclosure for foreign currency transactions and translation. This may include description of foreign currency transactions, foreign currency gains and losses, explanation of change in cumulative translation adjustment, description of effect of subsequent foreign currency exchange rate change, cumulative translation adjustment movement, foreign currency translation adjustment by component movement, translation adjustment for net investment hedge movement, adjustment for long-term intercompany transactions, schedule of long-term intercompany balances and any other foreign currency transactions and translation related items.

+ References + Details

Financial Instruments

12 Months Ended

Jun. 30, 2016

Financial Instruments

Financial Instruments

5. Financial Instruments

The Company considers all highly liquid investments held with various financial institutions, certificates of deposit and other securities with original maturities of three months or less to be cash equivalents.

The Company classifies all of its investments as available-for-sale at the time of purchase because it is management's intent that these investments are available for current operations and includes these investments on its balance sheets as short-term investments. Investments with original maturities longer than three months include commercial paper and investment- grade agency and corporate debt securities. Investments classified as available-for-sale are recorded at fair market value with the related unrealized gains and losses included in accumulated other comprehensive income (loss), a component of stockholders' equity. Realized gains and losses are recorded based on specific identification of each security's cost basis.

The Company defines fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) 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 reflect 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.

The following tables summarize the amortized cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category for cash, cash equivalents and short-term investments:

	June 30, 2016
								Estimated Market Value
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Cash and Cash Equivalents		Short-term Investments
Cash	$	95,906	$	—	$	—		$	95,906	$	—

Level 1
Money market funds		13,362		—		—			13,362		—

		13,362		—		—			13,362		—

Level 2
Commercial paper		14,704		—		—			8,938		5,766
U.S. government agencies securities		28,000		7		(17	)		—		27,990
U.S. Treasury securities		3,997		1		—			—		3,998
Municipal debt securities		1,565		—		—			1,565		—
Corporate debt securities		9,491		—		(6	)		—		9,485

		57,757		8		(23	)		10,503		47,239

Total	$	167,025	$	8	$	(23	)	$	119,771	$	47,239

	June 30, 2015
								Estimated Market Value
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Cash and Cash Equivalents		Short-term Investments
Cash	$	73,444	$	—	$	—		$	73,444	$	—

Level 1
Money market funds		6,107		—		—			6,107		—

		6,107		—		—			6,107		—

Level 2
Commercial paper		11,989		—		—			—		11,989
U.S. government agencies securities		21,999		6		(14	)		—		21,991
Non-U.S. government securities		1,504		—		(3	)		—		1,501
Corporate debt securities		28,891		—		(66	)		—		28,825

		64,383		6		(83	)		—		64,306

Total	$	143,934	$	6	$	(83	)	$	79,551	$	64,306

The Company's Level 2 investments in the table above are classified as Level 2 items because quoted prices in an active market are not readily accessible for those specific financial assets, or the Company may have relied on alternative pricing methods that do not rely exclusively on quoted prices to determine the fair value of the investments.

Contractual maturities of available-for-sale securities at June 30, 2016 were as follows:

	June 30, 2016
(in thousands)	Amortized Cost		Fair Value
Due in 1 year or less	$	24,091	$	24,091
Due in 1 - 2 years		23,163		23,148
Due in 2 - 3 years		—		—

	$	47,254	$	47,239

The following table summarizes our available-for-sale debt securities that were in a continuous unrealized loss position, but were not deemed to be other-than-temporarily impaired:

	Less Than 12 Months					12 Months or Greater					Total
(in thousands)	Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value
June 30, 2016
Debt securities:
Corporate debt securities	$	(3	)	$	6,325	$	(3	)	$	3,160	$	(6	)	$	9,485
U.S. government agencies securities		—			—		(17	)		19,988		(17	)		19,988

Total	$	(3	)	$	6,325	$	(20	)	$	23,148	$	(23	)	$	29,473


June 30, 2015
Debt securities:
Corporate debt securities	$	(45	)	$	23,428	$	(21	)	$	5,397	$	(66	)	$	28,825
U.S. government agencies securities		(1	)		11,004		(13	)		10,987		(14	)		21,991
Non—U.S. government securities		(3	)		1,501		—			—		(3	)		1,501

Total	$	(49	)	$	35,933	$	(34	)	$	16,384	$	(83	)	$	52,317

The Company held a total of 11 positions as of June 30, 2016 and 23 positions as of June 30, 2015 that were in an unrealized loss position. Based on the Company's review of these securities, the Company believes it had no other-than-temporary impairments on these securities as of June 30, 2016 and 2015 because it does not intend to sell these securities and believes it is not more likely than not that it will be required to sell these securities before the recovery of their amortized cost basis. Gross realized gains and gross realized losses were insignificant for the years ended June 30, 2016, 2015 and 2014.

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

The Company's non-marketable equity investments and non-financial assets, such as goodwill, intangible assets, and property, plant, and equipment (measured at fair value if a write-down is recognized) are evaluated for impairment annually or when indicators of impairment exist. The fair value measurement of non-marketable equity investments is performed by a third-party analyst using Level 3 inputs. Non-financial assets such as identified intangible assets acquired in connection with an acquisition are measured at fair value using Level 3 inputs, which include discounted cash flow methodologies, or similar techniques, when there is limited market activity and the determination of fair value requires significant judgment and estimates. In addition, in evaluating the fair value of goodwill impairment, further corroboration is obtained using our market capitalization. The Company did not record any impairment charges for non-marketable equity investments and non-financial asset in the fiscal years ended June 30, 2016, 2015, and 2014.

The long-term 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 Convertible Notes is not readily available.

The following table summarizes the carrying values and estimated fair values of the Company's Convertible Notes:

	June 30, 2016				June 30, 2015
(in thousands)	Carrying Value		Fair Value		Carrying Value		Fair Value
3.75% Convertible Notes	$	36,400	$	36,487	$	92,863	$	102,645
3.50% Convertible Notes		43,195		51,450		42,332		65,230
3.50% Series A Convertible Notes		66,613		81,053		64,460		102,760
Secured Loan		64,204		64,204		—		—

Total	$	210,412	$	233,194	$	199,655	$	270,635

- Definition

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.

+ References + Details

Goodwill and Purchased Intangible Assets

12 Months Ended

Jun. 30, 2016

Goodwill and Purchased Intangible Assets

Goodwill and Purchased Intangible Assets

6. Goodwill and Purchased Intangible Assets

Goodwill

Goodwill as of June 30, 2016 and 2015 and changes in the carrying amount of goodwill for the respective periods are as follows:

(in thousands)	June 30, 2016			June 30, 2015
Balance at the beginning of the period	$	58,054		$	58,091
Currency translation		(206	)		(37	)

Balance at the end of the period	$	57,848		$	58,054

In fiscal 2016 the Company performed its annual goodwill impairment test. Based on this analysis, the Company 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 completed acquisitions are as follows:

			June 30, 2016							June 30, 2015
(in thousands)	Useful Lives		Gross Carrying Amount		Accumulated Amortization			Net Amount		Gross Carrying Amount		Accumulated Amortization			Net Amount
	(in years)
Developed technology		5 - 6	$	46,743	$	(39,132	)	$	7,611	$	46,700	$	(31,136	)	$	15,564

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, 2016 and 2015.

Amortization expense related to purchased intangible assets was $8.0 million, $7.9 million and $8.4 million for the years ended June 30, 2016, 2015 and 2014, respectively.

The estimated future amortization expense of purchased intangible assets as of June 30, 2016 is as follows:

Year Ending June 30, (in thousands)	Amount
2017	$	7,568
2018		43
2019 and thereafter		—

	$	7,611

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Commitments and Contingencies

12 Months Ended

Jun. 30, 2016

Commitments and Contingencies

Commitments and Contingencies

7. Commitments and Contingencies

Operating Lease Agreements and Long-term Debt

The Company leases office and manufacturing space under non-cancelable operating leases with various expiration dates through December 2023. Rent expense was $8.3 million, $8.0 million and $6.5 million for the years ended June 30, 2016, 2015 and 2014, respectively. The terms of some of the facility leases provide for rental payments on a graduated scale. For these leases the Company recognizes rent expense on a straight-line basis over the lease period, and has accrued for rent expense incurred but not paid.

The Company is also required to make semi-annual interest payments on the Convertible Notes. See Note 13, Debt, for details.

Future minimum lease payments under non-cancelable operating lease agreements and long-term principal and interest on the Convertible Notes as of June 30, 2016 are as follows:

Year Ending June 30, (in thousands)	Operating Leases		Long-term Debt(1)
2017	$	8,812	$	49,602
2018		8,330		125,923
2019		4,767		8,295
2020		4,128		8,015
2021		3,803		56,519
Thereafter		10,024		—

Total	$	39,864	$	248,354


(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 Convertible Notes would impact cash payments noted in the preceding table.

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, 2016.

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. WARF has the right to terminate the license agreement if the Company does not meet the minimum royalty obligation of $0.3 million per year, or if the Company commits any breach of the license agreement's covenants. The Company recorded royalty costs of $0.6 million, $0.6 million and $0.7 million for the years ended June 30, 2016, 2015 and 2014, respectively, which were recorded in cost of revenue or deferred cost of revenue. The Company had accrued liabilities of approximately $0.1 million and $0.2 million at June 30, 2016 and 2015, 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, 2016.

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 estimable losses related to any current legal proceedings and claims. Although occasional adverse decisions or settlements may occur, except as described in the matters below, 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. For certain legal proceedings, management believes that there is a reasonable possibility that material losses may be incurred; however, the Company is unable to reasonably estimate a range of reasonably possible losses with respect to these matters. 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.

Rotary Systems

On April 28, 2011, a former supplier to TomoTherapy, Rotary Systems Incorporated ("Rotary Systems"), filed suit in Minnesota state court, Tenth Judicial District, Anoka County, against TomoTherapy alleging misappropriation of trade secrets, as well as several other counts alleging various theories of injury. Rotary Systems alleges TomoTherapy misappropriated Rotary Systems' trade secrets pertaining to a component previously purchased from Rotary Systems, which TomoTherapy now purchases from a different supplier. The suit alleges TomoTherapy improperly supplied the alleged trade secrets to its present supplier, Dynamic Sealing Technologies Inc. (also a named defendant in the suit). Rotary Systems has made an unspecified claim for damages of greater than $50,000. TomoTherapy moved to dismiss the case and, on August 29, 2011, the court granted the motion to dismiss with respect to all counts other than the count alleging misappropriation of trade secrets. On May 21, 2012, the court gave Rotary Systems sixty days to identify the alleged trade secrets with specificity or face dismissal of its claim with prejudice. The court held a hearing on September 20, 2012 to review Rotary Systems' amended complaint. TomoTherapy filed a motion for summary judgment on the trade secret claim, the court ruled in favor of TomoTherapy on December 5, 2013, and Rotary Systems appealed. On December 22, 2014, the Minnesota Court of Appeals reversed the district court's dismissal of Rotary Systems' trade secrets claim and remanded it to the district court but affirmed the dismissal of Rotary Systems' other claims. In late October 2015, a final scheduling order was confirmed for the remanded claims and the parties are currently in the process of conducting discovery. On April 19, 2016, the parties entered into a written settlement agreement resolving the lawsuit. A stipulation of dismissal dismissing all claims by all parties with prejudice was filed with the court and the court entered an order on July 12, 2016 dismissing the case with prejudice.

Cowealth Medical

On February 27, 2014, Cowealth Medical Holding Co., Ltd. ("Cowealth"), Accuray's former distributor in China, submitted a request for binding arbitration with the International Chamber of Commerce International Court of Arbitration ("ICC") alleging, among other matters, that Accuray breached its distributor agreement with Cowealth by wrongfully terminating Cowealth as its distributor and misappropriated certain of Cowealth's confidential information. Cowealth was seeking damages of approximately $170.0 million and injunctive relief. Accuray filed counterclaims for damages of approximately $35.0 million. Accuray's answer and counterclaim were submitted to the ICC on May 12, 2014, and Cowealth served its reply on June 27, 2014. A hearing was held in Hong Kong between January 26, 2015 and February 6, 2015. The parties filed closing submissions and reply closing submissions in March 2015. On October 29, 2015, the ICC ruled that Accuray was liable for certain damages and awarded Cowealth approximately $3.4 million. On November 27, 2015, Cowealth applied for a correction to the award to revise the amount of damages upwards to approximately $5.5 million. On January 21, 2016, the arbitrator granted Cowealth's application for a correction on the grounds that the original award amount was a clerical error on the part of the arbitrator. Interest on the final award amount will accrue at a rate of 5% per annum starting 30 days after the date the corrected award was issued until payment. Accordingly, management recorded a charge of $3.4 million for the first fiscal quarter ending September 30, 2015, and an additional $2.1 million for the second fiscal quarter ending December 30, 2015. The parties filed cost submissions and reply cost submissions in December 2015. The ICC released the final award on February 12, 2016, which dealt with the parties' claims for costs of the arbitration. Under the final award, the arbitrator awarded costs to Cowealth at a net amount of $2.4 million and rejected all other claims and requests. Prior to the ruling of the ICC, no accrual was established in the Company's consolidated financial statements because management did not believe the likelihood of an award of damages or costs of arbitration to Cowealth were probable or estimable. In addition, the Company won several of its counterclaims including the right to be assigned the existing service contracts between Cowealth and Accuray customers, transfer to Accuray any regulatory clearances, licenses or permits obtained and held for the purposes of selling the CyberKnife System in China and deliver any consigned parts in their possession.

Stockholders' Equity	12 Months Ended
Stockholders' Equity	Jun. 30, 2016
Stockholders' Equity
Stockholders' Equity	8. Stockholders' Equity At June 30, 2016, the Company had 13.2 million shares of common stock reserved for future issuance to the holders of the 3.50% Convertible Senior Notes and had 8.8 million shares of common stock reserved for issuance under the stock incentive plans and the employee stock purchase plan.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

+ Details

Stock Incentive Plan and Employee Stock Purchase Plan

12 Months Ended

Jun. 30, 2016

Stock Incentive Plan and Employee Stock Purchase Plan

Stock Incentive Plan and Employee Stock Purchase Plan

9. Stock Incentive Plan and Employee Stock Purchase Plan

As of June 30, 2016, the Company had two outstanding stock incentive plans: the 2007 Stock Incentive Plan, or the 2007 Plan; and the 1998 Stock Incentive Plan, or the1998 Plan. The 2007 Plan permits the granting of stock options, restricted stock awards, or RSAs and restricted stock units, or RSUs. The vesting of RSUs under the 2007 Plan may be time-based (over the requisite service period), 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 2007 Plan have an exercise price of at least 100% of the fair market value of the underlying stock on the grant date and no less than 85% of the fair value for non-qualified stock options. 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. Time-based RSUs 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. However, certain of the outstanding RSUs 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, 2016, the 1998 Plan continued to remain in effect; however, the Company can no longer grant equity awards under the plan.

The following table summarizes the share-based compensation charges included in the Company's consolidated statements of operations and comprehensive loss:

	Years ended June 30,
(in thousands)	2016		2015		2014
Cost of revenue	$	1,677	$	1,874	$	1,912
Research and development		2,564		2,971		2,585
Selling and marketing		2,633		2,945		2,059
General and administrative		5,764		6,140		4,757

	$	12,638	$	13,930	$	11,313

The amount of capitalized share-based compensation costs as components of inventory for the years ended June 30, 2016 and 2015 was insignificant. For the year ended June 30, 2014, the Company capitalized share-based compensation costs of $0.5 million, as components of inventory.

Stock Options

The Company did not grant any stock options in the years ended June 30, 2016, 2015 and 2014.

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 (in thousands)
Balance at June 30, 2013		4,844		$	7.15		6.17	$	2,771
Options granted		—		$	—
Options exercised		(1,062	)	$	5.01
Options forfeited/expired		(573	)	$	9.49

Balance at June 30, 2014		3,209		$	7.44		5.38	$	8,251
Options granted		—		$	—
Options exercised		(529	)	$	4.84
Options forfeited/expired		(143	)	$	8.72

Balance at June 30, 2015		2,537		$	7.91		5.10	$	1,862
Options granted		—		$	—
Options exercised		(59	)	$	4.89
Options forfeited/expired		(101	)	$	7.53

Balance at June 30, 2016		2,377		$	8.00		3.97	$	452


Vested or Expected to vest at June 30, 2016		2,377		$	8.00		3.97	$	452


Exercisable at June 30, 2016		2,304		$	8.06		3.89	$	443

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, 2016 of $5.19 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, 2016. The total intrinsic value of options exercised in the years ended June 30, 2016, 2015 and 2014 was approximately $0.1 million, $1.4 million and $3.8 million, respectively.

During the years ended June 30, 2016, 2015 and 2014, the Company recognized $0.8 million, $1.1 million and $1.7 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. Realized excess tax benefits related to stock options exercises was zero for each of the years ended June 30, 2016, 2015 and 2014.

As of June 30, 2016, there was approximately $0.1 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 0.47 years.

The following table summarizes information about outstanding and exercisable options at June 30, 2016:

	Options Outstanding						Options Exercisable
(in thousands, except years and exercise prices) Exercise Prices	Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Outstanding		Weighted Average Exercise Price
$4.00 - 4.01		332,613		4.49		4.01		332,613		4.01
$4.23 - 5.68		356,621		4.13		5.37		341,581		5.40
$5.74 - 6.28		443,640		5.33		6.15		416,552		6.14
$6.32 - 6.63		343,271		3.52		6.51		339,041		6.51
$6.75 - 6.82		13,500		5.22		6.77		13,500		6.77
$6.96		340,845		5.83		6.96		313,793		6.96
$7.06 - 28.47		546,686		1.52		15.28		546,686		15.28

Total Outstanding		2,377,176		3.97	$	8.00		2,303,766	$	8.06

Restricted Stock

The following table summarizes the activity of RSUs, PSUs and MSUs:

(In thousands, except dollars) Unvested Restricted Stock	Restricted Stock Units (000's)			Performance Stock Units (000's)			Market Stock Units (000's)			Total Number of Shares Underlying Stock Awards (000's)			Weighted Average Grant Date Fair Value Per Share
Unvested at June 30, 2013		2,424			556			407			3,387		$	5.66
Granted		2,125			70			735			2,930			7.28
Vested		(888	)		(25	)		—			(913	)		8.70
Cancelled/Forfeited		(545	)		(576	)		(336	)		(1,457	)		5.44

Unvested at June 30, 2014		3,116			25			806			3,947			6.24
Granted		1,679			20			513			2,212			6.77
Vested		(1,150	)		(25	)		—			(1,175	)		6.73
Cancelled/Forfeited		(320	)		—			(181	)		(501	)		6.20

Unvested at June 30, 2015		3,325			20			1,138			4,483			6.86
Granted		2,563			—			585			3,148			6.12
Vested		(1,138	)		(20	)		(413	)		(1,571	)		6.81
Cancelled/Forfeited		(546	)		—			(148	)		(694	)		6.59

Unvested at June 30, 2016		4,204			—			1,162			5,366		$	6.48

As of June 30, 2016, there was approximately $20.4 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 2.28 years.

Restricted Stock Units

The Company recognized $7.6 million, $7.9 million and $6.4 million of share-based compensation expense, net of estimated forfeitures, related to RSUs during the years ended June 30, 2016, 2015 and 2014. The weighted average grant date fair value per share of RSUs was $6.01, $6.79 and $7.32 for the years ended June 30, 2016, 2015 and 2014, respectively. As of June 30, 2016, there was approximately $17.7 million of unrecognized compensation cost, net of estimated forfeitures, related to RSUs. The aggregate fair market value of RSUs that vested during the year ended June 30, 2016 was $7.6 million.

Performance Stock Units

During fiscal 2012, the Compensation Committee approved the grant of 1.0 million PSUs to certain employees of the Company. The PSUs were cancelled in fiscal 2014 as it was determined that the Company did not achieve the requisite performance targets. The Compensation Committee approved the grant of zero, 20,000 and 70,000 PSUs to select employees of the Company in the years ended June 30, 2016, 2015 and 2014, respectively. Of these PSUs, 20,000, 25,000 and 25,000 vested in the years ended June 30, 2016, 2015 and 2014, respectively, due to the achievement of the requisite performance targets while zero, zero and 38,000 were cancelled in the years ended June 30, 2016, 2015 and 2014, respectively.

The Company recognized $0.04 million, 0.2 million, and $0.1 million of share-based compensation expense, net of estimated forfeitures, related to PSUs during the years ended June 30, 2016, 2015, and 2014, 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, 0.5 million and 0.7 million MSUs to select employees of the Company in the years ended June 30, 2016, 2015 and 2014, respectively. Of these MSUs, 0.4 million, 0.5 million and zero vested in the years ending June 30, 2016, 2015 and 2014, respectively, due to the Company's total stockholder return performance against the Russell 2000 index while 0.1 million, 0.2 million and 0.3 million MSUs were cancelled in the years ended June 30, 2016, 2015 and 2014, respectively. Assuming 100% performance target will be achieved, 0.2 million and 0.3 million of MSUs will vest by the end of fiscal 2017 and 2018, respectively.

The Company recognized $3.0 million, $3.4 million and $1.8 million of share-based compensation expense, net of estimated forfeitures, related to MSUs during the years ended June 30, 2016, 2015 and 2014, respectively. The weighted average grant date fair value per share of MSUs was $6.61, $6.64 and $7.18 for the years ended June 30, 2016, 2015 and 2014, respectively. As of June 30, 2016, there was approximately $2.8 million of unrecognized compensation cost, net of estimated forfeitures, related to MSUs.

Employee Stock Purchase Plan

Under the Company's 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. The ESPP is deemed compensatory and compensation costs are accounted for under ASC 718, Stock Compensation. 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,
	2016	2015	2014
Risk-free interest rate	0.7% - 0.51%	0.07% - 0.26%	0.06% - 0.13%
Dividend yield	—	—	—
Expected life	0.5 - 1.0	0.5 - 1.0	0.5 - 1.0
Expected volatility	33.3% - 49.1%	27.1% - 41.3%	27.5% - 46.5%

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, 2016, 2015 and 2014, the Company recognized $1.3 million, $1.3 million and $1.3 million, respectively, of compensation expense related to its ESPP.

The Company issued 0.7 million shares under the ESPP in fiscal 2016 and 2015, respectively, at a weighted average price per share of $4.92 and $5.61, respectively. As of June 30, 2016, total unrecognized compensation cost related to the ESPP plan was $0.6 million, which the Company expects to recognize over a weighted average period of 0.6 years.

Income Taxes

12 Months Ended

Jun. 30, 2016

Income Taxes

Income Taxes

10. Income Taxes

Loss before provision for income taxes on the accompanying statements of operations and comprehensive loss included the following components:

	Years Ended June 30,
(in thousands)	2016			2015			2014
Domestic	$	(32,710	)	$	(46,178	)	$	(42,485	)
Foreign		9,542			8,388			10,125

Total worldwide	$	(23,168	)	$	(37,790	)	$	(32,360	)

The provision for income taxes consisted of the following:

	Years Ended June 30,
(in thousands)	2016			2015		2014
Current:
Federal	$	—		$	—	$	—
State		17			33		78
Foreign		2,723			1,722		2,918

Total current		2,740			1,755		2,996
Deferred:
Federal		—			—		—
State		—			—		—
Foreign		(404	)		664		92

Total deferred		(404	)		664		92

Total provision for income taxes	$	2,336		$	2,419	$	3,088

Income tax payable was $2.3 million, $0.4 million and $2.0 million at June 30, 2016, 2015 and 2014, respectively. 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:

	Years Ended June 30,
(in thousands)	2016			2015			2014
U.S. federal taxes (benefit):
At federal statutory rate	$	(8,108	)	$	(13,226	)	$	(11,326	)
State tax, net of federal benefit		17			33			78
Stock-based compensation expense		701			579			332
Debt extinguishment		338			—			—
Other non-deductible permanent items		877			779			752
Change in valuation allowance		10,370			14,744			13,997
Credits		(795	)		(79	)		(114	)
Other		20			—			(112	)
Foreign taxes		(1,084	)		(411	)		(519	)

Total	$	2,336		$	2,419		$	3,088

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:

	June 30,
(in thousands)	2016			2015
Deferred tax assets:
Federal and state net operating losses	$	117,524		$	118,998
Accrued expenses and reserves		6,392			6,110
Deferred revenue		4,853			2,721
Credits		18,168			17,022
Share-based compensation expense		6,323			5,964
Capitalized research and development		5,882			3,959
Unicap		2,666			1,749
Other		859			372

Total deferred tax assets		162,667			156,895
Deferred tax liabilities:
Debt discount		(1,805	)		(4,318	)
Section 481 adjustment		(1,140	)		—
Fixed assets/intangibles		(961	)		(4,846	)

Total deferred tax liabilities		(3,906	)		(9,164	)
Valuation allowance		(158,264	)		(147,722	)

Net deferred tax assets	$	497		$	9

The Company has not provided for U.S. income taxes on undistributed earnings of its foreign subsidiaries because it intends to permanently re-invest these earnings outside the U.S. The cumulative amount of such undistributed earnings upon which no U.S. income taxes have been provided as of June 30, 2016 was $22.4 million. It is not practicable to determine the income tax liability that might be incurred if these earnings were to be repatriated to the U.S.

As of June 30, 2016 the Company had approximately $325.3 million and $145.6 million in federal and state net operating loss carryforwards, respectively. The federal and state carryforwards expire in varying amounts beginning in 2019 for federal and 2017 for state purposes. Such net operating loss carryforwards include excess tax benefits from employee stock option exercises which, in accordance with guidance for income tax accounting, have not been recorded within the Company's deferred tax asset balances. The Company will record approximately $3.8 million as a credit to additional paid-in capital as and when such excess benefits are ultimately realized.

In addition, as of June 30, 2016, the Company had federal and state research and development tax credits of approximately $17.9 million and $17.6 million, respectively. The federal research credits will begin to expire in 2019, the California research credits have no expiration date, and the other state research credits began to expire in 2017.

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. An analysis of the impact of this provision through March 31, 2016 has been performed and it was determined that, although ownership changes had occurred, the carryovers should be available for utilization by the Company before they expire, provided we generate sufficient future taxable income.

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

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

	Years Ended June 30,
(in thousands)	2016			2015			2014
Balance at beginning of year	$	17,023		$	17,169		$	16,749
Tax positions related to current year:
Additions		1,811			726			1,489
Tax positions related to prior years:
Additions		449			29			—
Reductions		(2,640	)		(901	)		(1,069	)

Balance at end of year	$	16,643		$	17,023		$	17,169

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 in 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 $1.6 million in uncertain tax positions that may be reduced related to the lapse of various statutes of limitation and completion of tax examinations. There will be no material changes in uncertain tax positions in the next 12 months. As of June 30, 2016, the amount of gross unrecognized tax benefits was $16.6 million of which $11.2 million would affect the Company's effective tax rate if realized.

The Company's practice is to recognize interest and/or penalties related to income tax matters in income tax expense. As of June 30, 2016 and 2015, the Company had approximately $0.5 million and $0.9 million, respectively, of 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 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 1999 and forward. The material foreign jurisdictions are France, Switzerland, and Japan, whose tax years remain open from 2012, 2011, and 2010, respectively.

The Company is also subject to periodic examination of its income tax returns by the Internal Revenue Service (IRS) and other tax authorities, and in some cases the Company has received additional tax assessments which have not been significant. During fiscal year 2016, the German tax authorities completed their audit on the Company's 2010 to 2013 tax returns with no significant adjustments. In addition, the Company has been audited by the Swiss Federal Tax Administration for the period 2011 through 2015 and the Company does not expect a significant impact on its results of operations.

Other Expense, Net

12 Months Ended

Jun. 30, 2016

Other Expense, Net.

Other Expense, Net

11. Other Expense, Net

Other expense, net consisted of the following:

	Years Ended June 30,
(in thousands)	2016			2015			2014
Interest expense on convertible notes	$	(17,460	)	$	(16,518	)	$	(14,287	)
Foreign currency transaction loss		(2,014	)		(2,551	)		(91	)
Other income(1)		1,179			448			162

Total other expense, net	$	(18,295	)	$	(18,621	)	$	(14,216	)


(1)	Other income consists of interest income, investment gains and losses, and other miscellaneous income.

Debt

12 Months Ended

Jun. 30, 2016

Debt

Debt

12. Debt

First Lien Senior Secured Term Loan due January 2021 (Secured Loan)

On January 11, 2016, the Company closed a $70.0 million first lien senior secured debt financing agreement with Cerberus Business Finance, LLC, an affiliate of Cerberus Capital Management, L.P (the "Secured Loan"). The proceeds of the loan are to be used to retire the 3.75% Convertible Notes at the earlier of August 2016 or when otherwise redeemed. The Secured Loan bears interest at a variable rate per annum equal to, at the Company's option, (i) the LIBOR Rate for one month plus an applicable margin of 7.00% (subject to a LIBOR Rate floor of 1.00% per annum), or (ii) a Reference Rate, which is the higher of 1) 3.25%, 2) Federal Funds Rate plus 0.5%, 3) the LIBOR rate for 1 month plus 1%, and 4) the US Prime Rate as published in the Wall Street Journal, plus an applicable margin of 4.75% per annum. The loan is repayable in consecutive quarterly installments of $875,000 with the final payment due on the final maturity date. The Secured Loan matures on the earlier of: (i) January 11, 2021 and (ii) the date that is 120 days prior to the scheduled maturity date of the 3.5% Convertible Notes maturing February 1, 2018 unless the Company has set aside specifically identifiable funds raised from new common equity or new debt equal to the then-outstanding principal amount of the 3.5% Convertible Notes. The net proceeds from the offering, after deducting the initial purchaser's discount and commission and the related offering costs, were approximately $65.5 million. The offering costs of $3.1 million and the initial purchaser's discount and commission of $1.4 million (both of which are recorded in Long-term Debt) are being amortized to interest expense using the effective interest method over five years. The Secured Loan is secured by first-priority liens on substantially all the assets of the Company.

The covenants in the Secured Loan include:


	•	Secured leverage—defines the maximum amount of secured leverage that can be on the Company's books at a given point in time calculated by the total secured debt divided by the last twelve months' adjusted EBITDA;
	•	Total leverage—defines the maximum amount of total leverage that can be on the Company's books at a given point in time calculated by the total debt divided by the last twelve months' adjusted EBITDA;
	•	Fixed Charge Coverage Ratio—designed to ensure that the Company's cash fixed charges are met with adequate free cash flow based on a minimum coverage ratio to be set and maintained;
	•	Minimum EBITDA—defines the minimum amount of adjusted EBITDA the Company must maintain and generate;
	•	Maximum CapEx—defines how much cash the Company can use annually to pursue capital projects, purchase PP&E and other related activities during the life of the loan; and
	•	Affirmative and negative covenants—defines reporting requirements, subsidiary asset restrictions, dividend distribution and repayment requirements among other general requirements.

The Company may, at its election, repay the Secured Loan at any time and if so, the Company will be required to pay a prepayment premium of 2% if the Secured Loan is repaid or accelerated within the first year on the amount repaid and 1% if the Secured Loan is repaid or accelerated within the second year on the amount repaid.

3.75% Convertible Senior Notes due August 2016

On August 1, 2011, the Company issued the 3.75% Convertible Notes to certain qualified institutional buyers or QIBs. The 3.75% Convertible Notes were offered and sold to the QIBs pursuant to Rule 144A under the Securities Act of 1933, as amended or Rule 144A. The net proceeds from the $100 million offering, after deducting the initial purchaser's discount and commission and the related offering costs, were approximately $96.1 million. The offering costs and the initial purchaser's discount and commission (which are recorded in Other Assets) are both being amortized to interest expense using the effective interest method over five years. The 3.75% Convertible Notes bear interest at a rate of 3.75% per year, payable semi-annually in arrears in cash on February 1 and August 1 of each year, beginning on February 1, 2012. The 3.75% Convertible Notes will mature on August 1, 2016, unless earlier repurchased, redeemed or converted.

The 3.75% Convertible Notes were issued under an Indenture between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee. Holders of the 3.75% Convertible Notes may convert their 3.75% Convertible Notes at any time on or after May 1, 2016 until the close of business on the business day immediately preceding the maturity date. Prior to May 1, 2016, holders of the 3.75% Convertible Notes may convert their 3.75% Convertible Notes only under the following circumstances: (1) during any calendar quarter after the calendar quarter ending September 30, 2011, and only during such calendar quarter, if the closing sale price of the Company's common stock for each of 20 or more trading days in the 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter exceeds 130% of the conversion price in effect on the last trading day of the immediately preceding calendar quarter; (2) during the five consecutive business days immediately after any five consecutive trading-day period (such five consecutive trading-day period, the "Note Measurement Period") in which the trading price per $1,000 principal amount of 3.75% Convertible Notes for each trading day of that Note Measurement Period was equal to or less than 98% of the product of the closing sale price of shares of the Company's common stock and the applicable conversion rate for such trading day; (3) if the Company calls any or all of the 3.75% Convertible Notes for redemption, at any time prior to the close of business on the business day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate transactions as described in the Indenture. Upon conversion by holders of the 3.75% Convertible Notes, the Company will have the right to pay or deliver, as the case may be, cash, shares of common stock of the Company or a combination thereof, at the Company's election. At any time on or prior to the 33rd business day immediately preceding the maturity date, the Company may irrevocably elect to (a) deliver solely shares of common stock of the Company in respect of the Company's conversion obligation or (b) pay cash up to the aggregate principal amount of the 3.75% Convertible Notes to be converted and pay or deliver, as the case may be, cash, shares of common stock of the Company or a combination thereof in respect of the remainder, if any, of the Company's conversion obligation in excess of the aggregate principal amount of the 3.75% Convertible Notes being converted. The initial conversion rate is 105.5548 shares of the Company's common stock per $1,000 principal amount of 3.75% Convertible Notes (which represents an initial conversion price of approximately $9.47 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 who convert their 3.75% Convertible 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 may require the Company to purchase all or a portion of their 3.75% Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of 3.75% Convertible Notes, plus accrued and unpaid interest, if any, to, but not including, the fundamental change repurchase date.

Prior to the maturity date, the Company may redeem for cash all or a portion of the 3.75% Convertible Notes if the closing sale price of its common stock exceeds 130% of the applicable conversion price (the initial conversion price is approximately $9.47 per share of common stock) of such 3.75% Convertible Notes for at least 20 trading days during any consecutive 30 trading-day period (including the last trading day of such period).

In accordance with ASC 470-20, the Company separately accounts for the liability and equity conversion components of the 3.75% Convertible Notes. The principal amount of the liability component of the 3.75% Convertible Notes was $75.9 million as of the date of issuance based on the present value of its cash flows using a discount rate of 10%, our approximate borrowing rate at the date of the issuance for a similar debt instrument without the conversion feature. The carrying value of the equity conversion component was $24.1 million. A portion of the initial purchaser's discount and commission and the offering costs totaling $0.9 million was allocated to the equity conversion component. The liability component is being accreted to the principal amount of the 3.75% Convertible Notes using the effective interest method over five years.

In January 2016, the Company repurchased approximately $63.4 million in aggregate principal amount of its 3.75% Convertible Senior Notes due August 2016 for $66.6 million in cash. As $63.4 million of the 3.75% Convertible Senior Notes were settled in cash, a total of 6.7 million potentially dilutive shares are no longer potentially outstanding from a net loss per share perspective, these shares were already noted in Note 2 above as being excluded due to being anti-dilutive in the current fiscal year of 2016. The Company recorded a charge in the third quarter of fiscal 2016 of approximately $1.0 million associated with the repurchase of the notes. Following such transactions, approximately $36.6 million aggregate principal amount of the 3.75% Convertible Notes remained outstanding. See Note 18 Subsequent Event regarding the retirement of the remaining 3.75% Convertible Notes.

3.50% Convertible Senior Notes due February 2018

In February 2013, the Company issued $115.0 million aggregate principal amount of its 3.50% Convertible Notes to certain QIBs. The 3.50% Convertible Notes were offered and sold to the QIBs pursuant to Rule 144A. The net proceeds from the offering, after deducting the initial purchaser's discount and commission and the related offering costs, were approximately $110.5 million. The offering costs and the initial purchaser's discount and commission (which are recorded in Other Assets) are both being amortized to interest expense using the effective interest method over five years. The 3.50% Convertible Notes bear interest at a rate of 3.50% per year, payable semi-annually in arrears in cash on February 1 and August 1 of each year, which began on August 1, 2013. The 3.50% Convertible Notes will mature on February 1, 2018, unless earlier repurchased, redeemed or converted.

In April 2014, through a series of transactions, the Company refinanced approximately $70.3 million aggregate principal amount of the 3.50% Convertible Notes with approximately $70.3 million aggregate principal amount of the Company's new 3.50% Series A Convertible Senior Notes due 2018 (the "3.50% Series A Convertible Notes").

The 3.50% Convertible Notes were issued under an Indenture between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee. Holders of the 3.50% Convertible Notes may convert their 3.50% Convertible Notes at any time until the close of business on the business day immediately preceding the maturity date. The 3.50% Convertible Notes are convertible, as described below into common stock of the Company at an initial conversion rate equal to 187.6877 shares of common stock per $1,000 principal amount of the 3.50% Convertible Notes, which is equivalent to a conversion price of approximately $5.33 per share of common stock, subject to adjustment.

Holders of the 3.50% Convertible Notes who convert their 3.50% Convertible 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 3.50% Convertible Notes may require the Company to purchase all or a portion of their 3.50% Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of 3.50% Convertible Notes, plus accrued and unpaid interest, if any, to, but not including, the fundamental change repurchase date.

In accordance with guidance in ASC 470-20, Debt with Conversion and Other Options and ASC 815-15, Embedded Derivatives, the Company determined that the embedded conversion components of the 3.50% Convertible Note do not require bifurcation and separate accounting. The remaining $44.7 million principal amount of the 3.50% Convertible Note has been recorded in Long-term Debt on the consolidated balance sheet as of June 30, 2016.

3.50% Series A Convertible Senior Notes due February 2018

On April 17, 2014, the Company entered into note exchange agreements with certain holders (the "Participating Holders") of the 3.50% Convertible Notes to refinance approximately $70.3 million aggregate principal amount of the 3.50% Convertible Notes with approximately $70.3 million aggregate principal amount of the 3.50% Series A Convertible Notes. Pursuant to the note exchange agreements, the Company also paid the Participating Holders an aggregate of approximately $0.4 million in cash in connection with such transactions. The principal amount of 3.50% Convertible Notes refinanced for each $1,000 principal amount of the 3.50% Series A Convertible Notes was $1,000 and the amount in cash paid per $1,000 principal amount of such 3.50% Convertible Notes delivered was determined in individual negotiations between the Company and each Participating Holder. The Series A Convertible Notes have the same interest rate, maturity and other terms as the 3.50% Convertible Notes, except that the 3.50% Series A Convertible Notes are convertible into cash, shares of the Company's common stock or a combination of cash and shares of common stock, at the Company's option.

The 3.50% Series A Convertible Notes were issued under an Indenture between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee. Holders of the 3.50% Series A Convertible Notes may convert their Securities at any time on or after November 1, 2017 until the close of business on the business day immediately preceding the maturity date. Prior to November 1, 2017, holders of the 3.50% Series A Convertible Notes may convert their Securities only under the following circumstances: (1) during any calendar quarter after the calendar quarter ending September 30, 2014, and only during such calendar quarter, if the closing sale price of the Company's common stock for each of 20 or more trading days in the 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter exceeds 130% of the conversion price in effect on the last trading day of the immediately preceding calendar quarter; (2) during the five consecutive business days immediately after any five consecutive trading-day period (such five consecutive trading-day period, the "Note Measurement Period") in which the trading price per $1,000 principal amount of 3.50% Series A Convertible Notes for each trading day of that Securities Measurement Period was equal to or less than 98% of the product of the closing sale price of shares of the Company's common stock and the applicable conversion rate for such trading day; or (3) upon the occurrence of specified corporate transactions as described in the Indenture. Upon conversion by holders of the 3.50% Series A Convertible Notes, the Company will have the right to pay or deliver, as the case may be, cash, shares of common stock of the Company or a combination thereof, at the Company's election. At any time on or prior to the 17th business day immediately preceding the maturity date, the Company may irrevocably elect to (a) deliver solely shares of common stock of the Company in respect of the Company's conversion obligation or (b) pay cash up to the aggregate principal amount of the 3.50% Series A Convertible Notes to be converted and pay or deliver, as the case may be, cash, shares of common stock of the Company or a combination thereof in respect of the remainder, if any, of the Company's conversion obligation in excess of the aggregate principal amount of the 3.50% Series A Convertible Notes being converted. The initial conversion rate is 187.6877 shares of the Company's common stock per $1,000 principal amount of 3.50% Series A Convertible Notes (which represents an initial conversion price of approximately $5.33 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 3.50% Series A Convertible Notes 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 3.50% Series A Convertible Notes may require the Company to purchase all or a portion of their 3.50% Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of the 3.50% Series A Convertible Notes, plus accrued and unpaid interest, if any, to, but not including, the fundamental change repurchase date.

In accordance with Accounting Standards Codification, or ASC 470-20, Debt with Conversion and Other Options, the Company separately accounts for the liability and equity conversion components of the 3.50% Series A Convertible Notes. The principal amount of the liability component of the 3.50% Series A Convertible Notes was $62.5 million as of the date of issuance based on the present value of its cash flows using a discount rate of 7%, our approximate borrowing rate at the date of the issuance for a similar debt instrument without the conversion feature. The carrying value of the equity conversion component was $7.9 million. In addition, the portion of the cash amount paid to the Participating Holders totaling $0.4 million was allocated to the debt discount with the remaining $47,000 to the equity component. The liability component is being accreted to the principal amount of the 3.50% Series A Convertible Notes using the effective interest method through the maturity in February 2018.

The following table presents the carrying values of all Convertible Notes and notes issued pursuant to the Secured Loan (collectively, "Notes") as of June 30, 2016:

(in thousands)	Secured Loan			3.75% Notes			3.50% Notes			3.50% Series A Notes			TOTAL
Carrying amount of the equity conversion component	$	—		$	19,670		$	—		$	7,844		$	27,514


Principal amount of the Convertible Notes	$	68,250		$	36,608		$	44,654		$	70,346		$	219,858
Unamortized debt costs		(2,786	)		(26	)		(1,459	)					(4,271	)
Unamortized debt discount		(1,260	)		(182	)		—			(3,733	)		(5,175	)

Net carrying amount	$	64,204		$	36,400		$	43,195		$	66,613		$	210,412

As of June 30, 2016, the remaining period over which the unamortized debt discount of the 3.75% Convertible Notes will be amortized is 1 month using an effective interest rate of 10.9%; the remaining amortization period of the 3.50% Series A Convertible Notes is 19 months using an effective interest rate of 7.10%.

A summary of interest expense on the Notes is as follows:

	Year ended June 30,
(in thousands)	2016		2015		2014
Interest expense related to contractual interest coupon	$	9,411	$	7,774	$	7,774
Interest expense related to amortization of debt discount		6,321		7,241		5,105
Interest expense related to amortization of debt issuance costs		1,728		1,503		1,408

	$	17,460	$	16,518	$	14,287

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Jun. 30, 2016
Employee Benefit Plans
Employee Benefit Plans	13. Employee Benefit Plans 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 $2.1 million, $2.3 million and $2.1 million to the 401(k) Plan during the years ended June 30, 2016, 2015 and 2014, respectively.

Defined Benefit Pension Obligation

12 Months Ended

Jun. 30, 2016

Defined Benefit Pension Obligation

Defined Benefit Pension Obligation

14. Defined Benefit Pension Obligation

The Company has established a defined pension plan for its employees in the 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 $2.9 million was recognized in long-term other liabilities in the accompanying balance sheet as of June 30, 2016. Actuarial loss of $0.5 million was recognized in other comprehensive loss in fiscal 2016.

Obligations and Funded Status

The following table presents the funded status of the defined benefit pension plan:

	June 30,
(in thousands)	2016			2015
Change in benefit obligation:
Benefit obligation—beginning of fiscal year	$	8,861		$	5,294
Service cost		1,903			980
Interest cost		76			107
Plan participants' contributions		2,239			3,010
Plan amendment		(490	)		—
Actuarial loss		1,163			1,007
Foreign currency changes		(347	)		(210	)
Benefit and expense payments		(970	)		(1,327	)

Benefit obligation—end of fiscal year	$	12,435		$	8,861


Change in plan assets:
Plan assets—beginning of fiscal year	$	7,184		$	4,357
Employer contributions		1,226			1,166
Actual return on plan assets		176			152
Plan participants' contributions		2,239			3,010
Foreign currency changes		(283	)		(174	)
Benefit and expense payments		(970	)		(1,327	)

Plan assets—end of fiscal year	$	9,572		$	7,184


Funded status	$	(2,863	)	$	(1,677	)

Amounts recognized within the consolidated balance sheets:

	June 30,
(in thousands)	2016		2015
Assets	$	—	$	—
Long-term liabilities		2,863		1,677

Net amount recognized	$	2,863	$	1,677

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

	June 30,
(in thousands)	2016			2015
Net loss	$	2,580		$	1,517
Prior service (credit) cost		(514	)		—

Accumulated other comprehensive loss	$	2,066		$	1,517

The following table presents the projected benefit obligation, accumulated benefit obligation and fair value of plan assets for those defined benefit pension plans where accumulated benefit obligation exceeded the fair value of plan assets:

	June 30,
(in thousands)	2016		2015
Projected benefit obligation	$	12,435	$	8,861
Accumulated benefit obligation	$	9,572	$	7,184
Fair value of plan assets	$	9,572	$	7,184

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 (earnings) loss, before tax, related to the Company's defined benefit pension plan:

	Year ended June 30,
(in thousands)	2016			2015			2014
Net Periodic Benefit Costs:
Service cost	$	1,903		$	980		$	734
Interest cost		76			107			60
Expected returns on assets		(102	)		(92	)		(61	)
Amortization of net (gain) loss		53			3			—

	$	1,930		$	998		$	733


Other Amounts Recognized in Other Comprehensive Loss:
Net (gain) loss arising during the year	$	1,093		$	953		$	567
Prior service cost (credit)		(491	)		—			—
Amortization of net (gain) loss		(53	)		(3	)		—

	$	549		$	950		$	567

The amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost during fiscal year 2017 related to the Company's defined benefit pension plans are as follows:

(in thousands)	2017
Net loss	$	2,350
Prior service (credit) cost		(445	)

Accumulated other comprehensive loss	$	1,905

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 plans were as follows:

	Fiscal Years
	2016			2015			2014
Net Periodic Benefit Costs:
Discount rate		0.4	%		0.9	%		2.0	%
Rate of compensation increase		2.0	%		2.0	%		2.0	%
Expected long-term return on assets		1.4	%		1.5	%		2.0	%

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

	Year ended June 30,
	2016			2015			2014
Benefit Obligation:
Discount rate		1.4	%		1.5	%		2.0	%
Rate of compensation increase		2.0	%		2.0	%		2.0	%

Estimated Contributions and Future Benefit Payments

The Company made contributions of approximately $1.2 million to the defined benefit pension plans during fiscal years 2016 and 2015, respectively. The Company expects total contributions to the defined benefit pension plans for fiscal year 2017 will be approximately $1.3 million.

Estimated future benefit payments to the defined benefit pension plans at June 30, 2016 were as follows:

Year Ending June 30, (in thousands)	Future Benefits
2017	$	982
2018		910
2019		844
2020		802
2021		760
Thereafter		3,991

Total	$	8,289

Plan Assets

The plan assets are invested in insurance contracts with Swiss Life Foundation BVG (BVG) insurance company based in Zurich, Switzerland at the end of fiscal 2016 and 2015 and are expected to be invested 100% in insurance contracts in fiscal 2017, which is reinsured by Swiss Life Ltd (SLL). SLL invests the vested pension capital and provides a 100% capital and interest rate guarantee as negotiated by the Company. In 2016, the Company negotiated a guaranteed interest rate of 1.25% for mandatory retirement savings and 0.75% for supplementary retirement savings. The pension plan is entitled to an annual bonus from the SLL comprising the effective savings, risk and cost results. The technical administration and management of the savings account are guaranteed by the SLL on behalf of BVG. Insurance benefits due are paid directly to the entitled persons by the SLL in the name of and for the account of the collective foundation. The Company has committed itself to pay the annual contributions and costs due under the pension fund regulations.

The contract of affiliation between the Company and BVG 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 BVG from all obligations.

Segment Disclosure

12 Months Ended

Jun. 30, 2016

Segment Disclosure

Segment Disclosure

15. 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:

	Years ended June 30,
(in thousands)	2016		2015		2014
Americas	$	159,517	$	174,000	$	156,242
Europe, Middle East, India and Africa		138,877		110,534		115,396
Asia (excluding Japan and India)		62,888		57,618		44,533
Japan		37,518		37,649		53,248

Total	$	398,800	$	379,801	$	369,419

Information regarding geographic areas in which the Company has long-lived tangible assets is as follows:

(in thousands)	June 30, 2016		June 30, 2015
Americas	$	23,842	$	28,182
Europe, Middle East, India and Africa		551		929
Asia (excluding Japan and India)		1,342		455
Japan		2,143		2,263

Total	$	27,878	$	31,829

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8906-108599

+ Details

Restructuring Charges	12 Months Ended
Restructuring Charges	Jun. 30, 2016
Restructuring Charges
Restructuring Charges	16. Restructuring Charges As part of the Company's plan to enhance operational performance through productivity initiatives, the Company implemented a re-alignment of its workforce during the fourth quarter of fiscal year 2016. The re-alignment affected approximately 3% of the Company's total workforce. The Company incurred approximately $2.5 million, $1.4 million, and zero in restructuring charges in connection with its workforce re-alignment for the years ended June 30, 2016, 2015, and 2014. These restructuring charges are included in cost of goods sold and operating expenses in the consolidated statements of operations. The Company had approximately $2.5 million and $1.3 million in accrued restructuring charges included in accrued compensation in the consolidated balance sheets as of June 30, 2016 and 2015, respectively.

Quarterly Financial Data (unaudited)

12 Months Ended

Jun. 30, 2016

Quarterly Financial Data (unaudited)

Quarterly Financial Data (unaudited)

17. Quarterly Financial Data (unaudited)

The following table provides the selected quarterly financial data for fiscal 2016 and 2015:

	Quarters ended
(in thousands, except per share amounts)	September 30, 2015			December 31, 2015			March 31, 2016		June 30, 2016
Net revenue	$	89,631		$	108,912		$	105,284	$	94,973
Gross profit	$	33,898		$	42,571		$	44,944	$	37,300
Net income (loss)	$	(13,026	)	$	(6,027	)	$	756	$	(7,207	)
Net income (loss) per share—basic	$	(0.16	)	$	(0.08	)	$	0.01	$	(0.09	)
Net income (loss) per share—diluted	$	(0.16	)	$	(0.08	)	$	0.01	$	(0.09	)
Shares used in basic per share calculation		79,760			80,346			80,860		81,081
Shares used in diluted per share calculation		79,760			80,346			82,071		81,081

	Quarters ended
(in thousands, except per share amounts)	September 30, 2014			December 31, 2014			March 31, 2015			June 30, 2015
Net revenue	$	82,381		$	98,155		$	97,515		$	101,750
Gross profit	$	27,801		$	38,489		$	38,660		$	40,452
Net loss	$	(21,650	)	$	(9,992	)	$	(2,967	)	$	(5,600	)
Net loss per share—basic and diluted	$	(0.28	)	$	(0.13	)	$	(0.04	)	$	(0.07	)
Shares used in basic and diluted per share calculation		77,290			77,924			78,746			79,170

Subsequent Event	12 Months Ended
Subsequent Event	Jun. 30, 2016
Subsequent Event
Subsequent Event	18. Subsequent Event 3.75% Convertible Senior Notes On August 1, 2016, the Company settled the remaining 3.75% Convertible Senior Notes for approximately $36.6 million aggregate principal amount and $0.7 million accrued interest for approximately $37.3 million in cash. In settling the notes for cash, during the January 2016 retirement as further described in Note 12 Debt and the August 2016 transaction, the Company avoided the issuance of approximately 10.6 million new common equity shares, representing a potential dilution of approximately 13 percent as of June 30, 2016.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Jun. 30, 2016

Basis of Presentation and Principles of Consolidation

Balance Sheet Reclassification

Use of Estimates

Foreign Currency

Fair Value Measurements

Cash and Cash Equivalents

Investments

Concentration of Credit Risk and Other Risks and Uncertainties

Restricted Cash

Inventories

Revenue Recognition

Product Revenue

Service Revenue

Deferred Revenue and Deferred Cost of Revenue

Customer Advances

Customer advances represent payments made by customers in advance of product shipment.

Property and Equipment

Software Capitalization Costs

Capitalized software costs are included in property, plant and equipment and amortized beginning when the software project is complete and the assets are ready for their intended use.

Impairment of Long-Lived Assets

Goodwill and Purchased Intangible Assets

Acquisition-related expenses and restructuring costs are recognized separately from the business combination and are expensed as incurred.

Shipping and Handling

Advertising Expenses

Research and Development Costs

Share-Based Compensation

Loss Contingencies

Net Loss Per Common Share

Basic and diluted net loss per share is computed by dividing net loss attributable to stockholders by the weighted average number of common shares outstanding during the year.

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

	Years ended June 30,
(in thousands)	2016			2015			2014
Numerator:
Net loss used in computing net loss per share	$	(25,504	)	$	(40,209	)	$	(35,448	)


Denominator:
Weighted average shares used in computing basic and diluted net loss per share		80,509			78,277			75,804

	As of June 30,
(in thousands)	2016		2015		2014
Stock options		2,377		2,537		3,209
RSUs, PSUs and MSUs		5,467		4,483		3,947
3.75% Convertible Notes		—		—		—
3.50% Convertible Notes		8,378		8,378		8,378
3.50% Series A Convertible Notes		—		2,896		4,985

		16,222		18,294		20,519

Outstanding Convertibles Notes—Diluted Share Impact

Income Taxes

Accumulated Other Comprehensive Loss

Recent Accounting Standard Update Not Yet Effective

Accounting Standard Updates

Recent Accounting Standard Updates Not Yet Effective

Accounting Standard Update Recently Adopted

Accounting Standard Updates

Accounting Standard Update Recently Adopted

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2016

Summary of Significant Accounting Policies

Schedule of reconciliation of the numerator and denominator used in the calculation of basic and diluted loss per share

	Years ended June 30,
(in thousands)	2016			2015			2014
Numerator:
Net loss used in computing net loss per share	$	(25,504	)	$	(40,209	)	$	(35,448	)


Denominator:
Weighted average shares used in computing basic and diluted net loss per share		80,509			78,277			75,804

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

	As of June 30,
(in thousands)	2016		2015		2014
Stock options		2,377		2,537		3,209
RSUs, PSUs and MSUs		5,467		4,483		3,947
3.75% Convertible Notes		—		—		—
3.50% Convertible Notes		8,378		8,378		8,378
3.50% Series A Convertible Notes		—		2,896		4,985

		16,222		18,294		20,519

Balance Sheet Components (Tables)

12 Months Ended

Jun. 30, 2016

Balance Sheet Components

Summary of cash and cash equivalents

(in thousands)	June 30, 2016		June 30, 2015
Cash	$	95,906	$	73,444
Money market funds		13,362		6,107
Commercial paper		8,938		—
Municipal government securities		1,565		—

	$	119,771	$	79,551

Schedule of accounts receivable, net

(in thousands)	June 30, 2016			June 30, 2015
Accounts receivable	$	54,974		$	75,631
Unbilled fees and services		2,662			2,805

		57,636			78,436
Less: Allowance for doubtful accounts		(826	)		(709	)

Accounts receivable, net	$	56,810		$	77,727

Schedule of financing receivables

June 30, 2016 (in thousands)	Lease Receivables			Financed Service Contracts and Other		Total
Gross	$	4,998		$	5,840	$	10,838
Residual value		—			—		—
Unearned income		(623	)		—		(623	)
Allowance for credit loss		—			—		—

Total, net	$	4,375		$	5,840		10,215


Reported as:
Current	$	840		$	1,778	$	2,618
Non-current		3,535			4,062		7,597

Total, net	$	4,375		$	5,840	$	10,215

June 30, 2015 (in thousands)	Lease Receivables		Financed Service Contracts and Other		Total
Gross	$	—	$	2,674	$	2,674
Residual value		—		—		—
Unearned income		—		—		—
Allowance for credit loss		—		—		—

Total, net	$	—	$	2,674		2,674


Reported as:
Current	$	—	$	1,032	$	1,032
Non-current		—		1,642		1,642

Total, net	$	—	$	2,674	$	2,674

Schedule of future minimum lease payments receivable

Year Ending June 30, (in thousands)	Amount
2017	$	1,046
2018		930
2019		930
2020		930
2021		930
2022		232

Total	$	4,998

Schedule of inventories

(in thousands)	June 30, 2016		June 30, 2015
Raw materials	$	50,480	$	46,356
Work-in-process		20,190		15,445
Finished goods		45,317		44,350

Inventories	$	115,987	$	106,151

Schedule of property and equipment, net

(in thousands)	June 30, 2016			June 30, 2015
Furniture and fixtures	$	4,527		$	4,674
Computer and office equipment		11,485			11,808
Software		11,104			10,992
Leasehold improvements		21,632			19,428
Machinery and equipment		47,171			47,031
Construction in progress		4,412			8,273

		100,331			102,206
Less: Accumulated depreciation		(72,453	)		(70,377	)

Property and equipment, net	$	27,878		$	31,829

Schedule of components of accumulated other comprehensive income (loss)

(in thousands)	Foreign Currency Items			Unrealized Gains and Losses on Available- for-Sale Securities			Change in Defined Benefit Pension Obligation			Total
Balance at June 30, 2014	$	2,364		$	18		$	(567	)	$	1,815
Other comprehensive income (loss) before reclassifications		(1,196	)		(99	)		(950	)		(2,245	)
Amounts reclassified from accumulated other comprehensive income		—			4			—			4

Net current period other comprehensive loss		(1,196	)		(95	)		(950	)		(2,241	)

Balance at June 30, 2015		1,168			(77	)		(1,517	)		(426	)
Other comprehensive income (loss) before reclassifications		(47	)		63			(549	)		(533	)
Amounts reclassified from accumulated other comprehensive income		—			(1	)		—			(1	)

Net current period other comprehensive income (loss)		(47	)		62			(549	)		(534	)

Balance at June 30, 2016	$	1,121		$	(15	)	$	(2,066	)	$	(960	)

Foreign Exchange Instruments (Tables)

12 Months Ended

Jun. 30, 2016

Foreign Exchange Instruments

Schedule of effect of forward contracts not designated as hedging instruments and foreign currency transactions gains and losses

(in thousands)	2016			2015			2014
Foreign currency exchange gain (loss) on foreign contracts	$	(4,155	)	$	(1,355	)	$	(2,144	)
Foreign currency transactions gain (loss)		2,141			(1,196	)		2,053

Financial Instruments (Tables)

12 Months Ended

Jun. 30, 2016

Financial Instruments

Summary of amortized cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category for cash, cash equivalents and short-term investments

	June 30, 2016
								Estimated Market Value
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Cash and Cash Equivalents		Short-term Investments
Cash	$	95,906	$	—	$	—		$	95,906	$	—

Level 1
Money market funds		13,362		—		—			13,362		—

		13,362		—		—			13,362		—

Level 2
Commercial paper		14,704		—		—			8,938		5,766
U.S. government agencies securities		28,000		7		(17	)		—		27,990
U.S. Treasury securities		3,997		1		—			—		3,998
Municipal debt securities		1,565		—		—			1,565		—
Corporate debt securities		9,491		—		(6	)		—		9,485

		57,757		8		(23	)		10,503		47,239

Total	$	167,025	$	8	$	(23	)	$	119,771	$	47,239

	June 30, 2015
								Estimated Market Value
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Cash and Cash Equivalents		Short-term Investments
Cash	$	73,444	$	—	$	—		$	73,444	$	—

Level 1
Money market funds		6,107		—		—			6,107		—

		6,107		—		—			6,107		—

Level 2
Commercial paper		11,989		—		—			—		11,989
U.S. government agencies securities		21,999		6		(14	)		—		21,991
Non-U.S. government securities		1,504		—		(3	)		—		1,501
Corporate debt securities		28,891		—		(66	)		—		28,825

		64,383		6		(83	)		—		64,306

Total	$	143,934	$	6	$	(83	)	$	79,551	$	64,306

Schedule of contractual maturities of available-for-sale securities

	June 30, 2016
(in thousands)	Amortized Cost		Fair Value
Due in 1 year or less	$	24,091	$	24,091
Due in 1 - 2 years		23,163		23,148
Due in 2 - 3 years		—		—

	$	47,254	$	47,239

Schedule of available-for-sale debt securities that were in a continuous unrealized loss position

	Less Than 12 Months					12 Months or Greater					Total
(in thousands)	Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value
June 30, 2016
Debt securities:
Corporate debt securities	$	(3	)	$	6,325	$	(3	)	$	3,160	$	(6	)	$	9,485
U.S. government agencies securities		—			—		(17	)		19,988		(17	)		19,988

Total	$	(3	)	$	6,325	$	(20	)	$	23,148	$	(23	)	$	29,473


June 30, 2015
Debt securities:
Corporate debt securities	$	(45	)	$	23,428	$	(21	)	$	5,397	$	(66	)	$	28,825
U.S. government agencies securities		(1	)		11,004		(13	)		10,987		(14	)		21,991
Non—U.S. government securities		(3	)		1,501		—			—		(3	)		1,501

Total	$	(49	)	$	35,933	$	(34	)	$	16,384	$	(83	)	$	52,317

Schedule of carrying values and estimated fair values of long-term debt that are measured on a non-recurring basis

	June 30, 2016				June 30, 2015
(in thousands)	Carrying Value		Fair Value		Carrying Value		Fair Value
3.75% Convertible Notes	$	36,400	$	36,487	$	92,863	$	102,645
3.50% Convertible Notes		43,195		51,450		42,332		65,230
3.50% Series A Convertible Notes		66,613		81,053		64,460		102,760
Secured Loan		64,204		64,204		—		—

Total	$	210,412	$	233,194	$	199,655	$	270,635

Goodwill and Purchased Intangible Assets (Tables)

12 Months Ended

Jun. 30, 2016

Goodwill and Purchased Intangible Assets

Schedule of goodwill and changes in the carrying amount of goodwill

(in thousands)	June 30, 2016			June 30, 2015
Balance at the beginning of the period	$	58,054		$	58,091
Currency translation		(206	)		(37	)

Balance at the end of the period	$	57,848		$	58,054

Schedule of intangible assets associated with completed acquisitions

			June 30, 2016							June 30, 2015
(in thousands)	Useful Lives		Gross Carrying Amount		Accumulated Amortization			Net Amount		Gross Carrying Amount		Accumulated Amortization			Net Amount
	(in years)
Developed technology		5 - 6	$	46,743	$	(39,132	)	$	7,611	$	46,700	$	(31,136	)	$	15,564

Schedule of estimated future amortization expense of purchased intangible assets

Year Ending June 30, (in thousands)	Amount
2017	$	7,568
2018		43
2019 and thereafter		—

	$	7,611

Commitments and Contingencies (Tables)

12 Months Ended

Jun. 30, 2016

Commitments and Contingencies

Schedule of future minimum lease payments under non-cancelable operating lease agreements and long-term principal and interest on Convertible Notes

Year Ending June 30, (in thousands)	Operating Leases		Long-term Debt(1)
2017	$	8,812	$	49,602
2018		8,330		125,923
2019		4,767		8,295
2020		4,128		8,015
2021		3,803		56,519
Thereafter		10,024		—

Total	$	39,864	$	248,354


(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 Convertible Notes would impact cash payments noted in the preceding table.

Stock Incentive Plan and Employee Stock Purchase Plan (Tables)

12 Months Ended

Jun. 30, 2016

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 loss

	Years ended June 30,
(in thousands)	2016		2015		2014
Cost of revenue	$	1,677	$	1,874	$	1,912
Research and development		2,564		2,971		2,585
Selling and marketing		2,633		2,945		2,059
General and administrative		5,764		6,140		4,757

	$	12,638	$	13,930	$	11,313

Schedule of option activity under the Company's Incentive Plan

(in thousands, except per share and term amounts)	Options Outstanding			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (In Years)		Aggregate Intrinsic Value (in thousands)
Balance at June 30, 2013		4,844		$	7.15		6.17	$	2,771
Options granted		—		$	—
Options exercised		(1,062	)	$	5.01
Options forfeited/expired		(573	)	$	9.49

Balance at June 30, 2014		3,209		$	7.44		5.38	$	8,251
Options granted		—		$	—
Options exercised		(529	)	$	4.84
Options forfeited/expired		(143	)	$	8.72

Balance at June 30, 2015		2,537		$	7.91		5.10	$	1,862
Options granted		—		$	—
Options exercised		(59	)	$	4.89
Options forfeited/expired		(101	)	$	7.53

Balance at June 30, 2016		2,377		$	8.00		3.97	$	452


Vested or Expected to vest at June 30, 2016		2,377		$	8.00		3.97	$	452


Exercisable at June 30, 2016		2,304		$	8.06		3.89	$	443

Summary of information about outstanding and exercisable options

The following table summarizes information about outstanding and exercisable options at June 30, 2016:

	Options Outstanding						Options Exercisable
(in thousands, except years and exercise prices) Exercise Prices	Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Outstanding		Weighted Average Exercise Price
$4.00 - 4.01		332,613		4.49		4.01		332,613		4.01
$4.23 - 5.68		356,621		4.13		5.37		341,581		5.40
$5.74 - 6.28		443,640		5.33		6.15		416,552		6.14
$6.32 - 6.63		343,271		3.52		6.51		339,041		6.51
$6.75 - 6.82		13,500		5.22		6.77		13,500		6.77
$6.96		340,845		5.83		6.96		313,793		6.96
$7.06 - 28.47		546,686		1.52		15.28		546,686		15.28

Total Outstanding		2,377,176		3.97	$	8.00		2,303,766	$	8.06

Summary of activity of RSUs, PSUs and MSUs

(In thousands, except dollars) Unvested Restricted Stock	Restricted Stock Units (000's)			Performance Stock Units (000's)			Market Stock Units (000's)			Total Number of Shares Underlying Stock Awards (000's)			Weighted Average Grant Date Fair Value Per Share
Unvested at June 30, 2013		2,424			556			407			3,387		$	5.66
Granted		2,125			70			735			2,930			7.28
Vested		(888	)		(25	)		—			(913	)		8.70
Cancelled/Forfeited		(545	)		(576	)		(336	)		(1,457	)		5.44

Unvested at June 30, 2014		3,116			25			806			3,947			6.24
Granted		1,679			20			513			2,212			6.77
Vested		(1,150	)		(25	)		—			(1,175	)		6.73
Cancelled/Forfeited		(320	)		—			(181	)		(501	)		6.20

Unvested at June 30, 2015		3,325			20			1,138			4,483			6.86
Granted		2,563			—			585			3,148			6.12
Vested		(1,138	)		(20	)		(413	)		(1,571	)		6.81
Cancelled/Forfeited		(546	)		—			(148	)		(694	)		6.59

Unvested at June 30, 2016		4,204			—			1,162			5,366		$	6.48

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

	Years Ended June 30,
	2016	2015	2014
Risk-free interest rate	0.7% - 0.51%	0.07% - 0.26%	0.06% - 0.13%
Dividend yield	—	—	—
Expected life	0.5 - 1.0	0.5 - 1.0	0.5 - 1.0
Expected volatility	33.3% - 49.1%	27.1% - 41.3%	27.5% - 46.5%

Income Taxes (Tables)

12 Months Ended

Jun. 30, 2016

Income Taxes

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

	Years Ended June 30,
(in thousands)	2016			2015			2014
Domestic	$	(32,710	)	$	(46,178	)	$	(42,485	)
Foreign		9,542			8,388			10,125

Total worldwide	$	(23,168	)	$	(37,790	)	$	(32,360	)

Schedule of provision for income taxes

	Years Ended June 30,
(in thousands)	2016			2015		2014
Current:
Federal	$	—		$	—	$	—
State		17			33		78
Foreign		2,723			1,722		2,918

Total current		2,740			1,755		2,996
Deferred:
Federal		—			—		—
State		—			—		—
Foreign		(404	)		664		92

Total deferred		(404	)		664		92

Total provision for income taxes	$	2,336		$	2,419	$	3,088

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,
(in thousands)	2016			2015			2014
U.S. federal taxes (benefit):
At federal statutory rate	$	(8,108	)	$	(13,226	)	$	(11,326	)
State tax, net of federal benefit		17			33			78
Stock-based compensation expense		701			579			332
Debt extinguishment		338			—			—
Other non-deductible permanent items		877			779			752
Change in valuation allowance		10,370			14,744			13,997
Credits		(795	)		(79	)		(114	)
Other		20			—			(112	)
Foreign taxes		(1,084	)		(411	)		(519	)

Total	$	2,336		$	2,419		$	3,088

Schedule of significant components of net deferred tax assets

	June 30,
(in thousands)	2016			2015
Deferred tax assets:
Federal and state net operating losses	$	117,524		$	118,998
Accrued expenses and reserves		6,392			6,110
Deferred revenue		4,853			2,721
Credits		18,168			17,022
Share-based compensation expense		6,323			5,964
Capitalized research and development		5,882			3,959
Unicap		2,666			1,749
Other		859			372

Total deferred tax assets		162,667			156,895
Deferred tax liabilities:
Debt discount		(1,805	)		(4,318	)
Section 481 adjustment		(1,140	)		—
Fixed assets/intangibles		(961	)		(4,846	)

Total deferred tax liabilities		(3,906	)		(9,164	)
Valuation allowance		(158,264	)		(147,722	)

Net deferred tax assets	$	497		$	9

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

	Years Ended June 30,
(in thousands)	2016			2015			2014
Balance at beginning of year	$	17,023		$	17,169		$	16,749
Tax positions related to current year:
Additions		1,811			726			1,489
Tax positions related to prior years:
Additions		449			29			—
Reductions		(2,640	)		(901	)		(1,069	)

Balance at end of year	$	16,643		$	17,023		$	17,169

Other Expense, Net (Tables)

12 Months Ended

Jun. 30, 2016

Other Expense, Net.

Schedule of other income (expense), net

	Years Ended June 30,
(in thousands)	2016			2015			2014
Interest expense on convertible notes	$	(17,460	)	$	(16,518	)	$	(14,287	)
Foreign currency transaction loss		(2,014	)		(2,551	)		(91	)
Other income(1)		1,179			448			162

Total other expense, net	$	(18,295	)	$	(18,621	)	$	(14,216	)


(1)	Other income consists of interest income, investment gains and losses, and other miscellaneous income.

Debt (Tables)

12 Months Ended

Jun. 30, 2016

Debt

Schedule of carrying values of all Convertible Notes

The following table presents the carrying values of all Convertible Notes and notes issued pursuant to the Secured Loan (collectively, "Notes") as of June 30, 2016:

(in thousands)	Secured Loan			3.75% Notes			3.50% Notes			3.50% Series A Notes			TOTAL
Carrying amount of the equity conversion component	$	—		$	19,670		$	—		$	7,844		$	27,514


Principal amount of the Convertible Notes	$	68,250		$	36,608		$	44,654		$	70,346		$	219,858
Unamortized debt costs		(2,786	)		(26	)		(1,459	)					(4,271	)
Unamortized debt discount		(1,260	)		(182	)		—			(3,733	)		(5,175	)

Net carrying amount	$	64,204		$	36,400		$	43,195		$	66,613		$	210,412

Summary of interest expense on all Convertible Notes

	Year ended June 30,
(in thousands)	2016		2015		2014
Interest expense related to contractual interest coupon	$	9,411	$	7,774	$	7,774
Interest expense related to amortization of debt discount		6,321		7,241		5,105
Interest expense related to amortization of debt issuance costs		1,728		1,503		1,408

	$	17,460	$	16,518	$	14,287

Defined Benefit Pension Obligation (Tables)

12 Months Ended

Jun. 30, 2016

Defined Benefit Pension Obligation

Schedule of funded status

	June 30,
(in thousands)	2016			2015
Change in benefit obligation:
Benefit obligation—beginning of fiscal year	$	8,861		$	5,294
Service cost		1,903			980
Interest cost		76			107
Plan participants' contributions		2,239			3,010
Plan amendment		(490	)		—
Actuarial loss		1,163			1,007
Foreign currency changes		(347	)		(210	)
Benefit and expense payments		(970	)		(1,327	)

Benefit obligation—end of fiscal year	$	12,435		$	8,861


Change in plan assets:
Plan assets—beginning of fiscal year	$	7,184		$	4,357
Employer contributions		1,226			1,166
Actual return on plan assets		176			152
Plan participants' contributions		2,239			3,010
Foreign currency changes		(283	)		(174	)
Benefit and expense payments		(970	)		(1,327	)

Plan assets—end of fiscal year	$	9,572		$	7,184


Funded status	$	(2,863	)	$	(1,677	)

Schedule of amounts recognized within consolidated balance sheets

	June 30,
(in thousands)	2016		2015
Assets	$	—	$	—
Long-term liabilities		2,863		1,677

Net amount recognized	$	2,863	$	1,677

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

	June 30,
(in thousands)	2016			2015
Net loss	$	2,580		$	1,517
Prior service (credit) cost		(514	)		—

Accumulated other comprehensive loss	$	2,066		$	1,517

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,
(in thousands)	2016		2015
Projected benefit obligation	$	12,435	$	8,861
Accumulated benefit obligation	$	9,572	$	7,184
Fair value of plan assets	$	9,572	$	7,184

Components of net periodic benefit cost and other amounts recognized in other comprehensive loss

	Year ended June 30,
(in thousands)	2016			2015			2014
Net Periodic Benefit Costs:
Service cost	$	1,903		$	980		$	734
Interest cost		76			107			60
Expected returns on assets		(102	)		(92	)		(61	)
Amortization of net (gain) loss		53			3			—

	$	1,930		$	998		$	733


Other Amounts Recognized in Other Comprehensive Loss:
Net (gain) loss arising during the year	$	1,093		$	953		$	567
Prior service cost (credit)		(491	)		—			—
Amortization of net (gain) loss		(53	)		(3	)		—

	$	549		$	950		$	567

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

(in thousands)	2017
Net loss	$	2,350
Prior service (credit) cost		(445	)

Accumulated other comprehensive loss	$	1,905

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

	Fiscal Years
	2016			2015			2014
Net Periodic Benefit Costs:
Discount rate		0.4	%		0.9	%		2.0	%
Rate of compensation increase		2.0	%		2.0	%		2.0	%
Expected long-term return on assets		1.4	%		1.5	%		2.0	%

	Year ended June 30,
	2016			2015			2014
Benefit Obligation:
Discount rate		1.4	%		1.5	%		2.0	%
Rate of compensation increase		2.0	%		2.0	%		2.0	%

Schedule of estimated future benefit payments

Year Ending June 30, (in thousands)	Future Benefits
2017	$	982
2018		910
2019		844
2020		802
2021		760
Thereafter		3,991

Total	$	8,289

Segment Disclosure (Tables)

12 Months Ended

Jun. 30, 2016

Segment Disclosure

Summary of revenue by geographic region

	Years ended June 30,
(in thousands)	2016		2015		2014
Americas	$	159,517	$	174,000	$	156,242
Europe, Middle East, India and Africa		138,877		110,534		115,396
Asia (excluding Japan and India)		62,888		57,618		44,533
Japan		37,518		37,649		53,248

Total	$	398,800	$	379,801	$	369,419

Schedule of geographic areas in which the Company has long lived tangible assets

(in thousands)	June 30, 2016		June 30, 2015
Americas	$	23,842	$	28,182
Europe, Middle East, India and Africa		551		929
Asia (excluding Japan and India)		1,342		455
Japan		2,143		2,263

Total	$	27,878	$	31,829

Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Jun. 30, 2016

Quarterly Financial Data (unaudited)

Schedule of selected quarterly financial data (unaudited)

	Quarters ended
(in thousands, except per share amounts)	September 30, 2015			December 31, 2015			March 31, 2016		June 30, 2016
Net revenue	$	89,631		$	108,912		$	105,284	$	94,973
Gross profit	$	33,898		$	42,571		$	44,944	$	37,300
Net income (loss)	$	(13,026	)	$	(6,027	)	$	756	$	(7,207	)
Net income (loss) per share—basic	$	(0.16	)	$	(0.08	)	$	0.01	$	(0.09	)
Net income (loss) per share—diluted	$	(0.16	)	$	(0.08	)	$	0.01	$	(0.09	)
Shares used in basic per share calculation		79,760			80,346			80,860		81,081
Shares used in diluted per share calculation		79,760			80,346			82,071		81,081

	Quarters ended
(in thousands, except per share amounts)	September 30, 2014			December 31, 2014			March 31, 2015			June 30, 2015
Net revenue	$	82,381		$	98,155		$	97,515		$	101,750
Gross profit	$	27,801		$	38,489		$	38,660		$	40,452
Net loss	$	(21,650	)	$	(9,992	)	$	(2,967	)	$	(5,600	)
Net loss per share—basic and diluted	$	(0.28	)	$	(0.13	)	$	(0.04	)	$	(0.07	)
Shares used in basic and diluted per share calculation		77,290			77,924			78,746			79,170

Summary of Significant Accounting Policies - Balance Sheet Reclassification (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Recent Accounting Pronouncements
Other assets	$ (12,020)	$ (5,497)
Long term debt	$ (170,512)	(199,655)
Accounting Standards Update ("ASU") 2015-03 - Simplifying the Presentation of Debt Issuance Costs \| Scenario Adjustment
Recent Accounting Pronouncements
Other assets		3,200
Long term debt		$ (3,200)

Summary of Significant Accounting Policies - Concentration Risk (Details)	12 Months Ended
	Jun. 30, 2016 customer item	Jun. 30, 2015 customer	Jun. 30, 2014 customer
Cash, cash equivalent and investments \| Investment concentration risk
Concentration of Credit Risk and Other Risks and Uncertainties
Number of obligors or makers \| item	1
Cash, cash equivalent and investments \| Investment concentration risk \| Maximum
Concentration of Credit Risk and Other Risks and Uncertainties
Percentage of concentration risk	5.00%
Total accounts receivable \| Credit concentration risk
Concentration of Credit Risk and Other Risks and Uncertainties
Number of significant customers	1	1
Percentage of concentration risk	18.00%	18.00%
Total net revenue \| Customer concentration risk
Concentration of Credit Risk and Other Risks and Uncertainties
Number of significant customers	1	0	0
Total net revenue \| Customer concentration risk \| Minimum
Concentration of Credit Risk and Other Risks and Uncertainties
Percentage of concentration risk	10.00%	10.00%	10.00%

Summary of Significant Accounting Policies - Deferred Revenue (Details)	12 Months Ended
	Jun. 30, 2016
Deferred Revenue and Deferred Cost of Revenue
Period over which deferred service revenue resulting from advance payment for services are to be delivered	1 year
Maximum expected period to classify deferred revenue as current liabilities and deferred costs of revenue as current assets	1 year

Summary of Significant Accounting Policies - Property and Equipment (Details)	12 Months Ended
	Jun. 30, 2016
Machinery and equipment
Property and Equipment
Period over which property and equipment are depreciated	5 years
Furniture and fixtures
Property and Equipment
Period over which property and equipment are depreciated	4 years
Computer and office equipment
Property and Equipment
Period over which property and equipment are depreciated	3 years
Software
Property and Equipment
Period over which property and equipment are depreciated	3 years

Summary of Significant Accounting Policies - Goodwill and Purchased Intangible Assets and Advertising Expenses (Details) $ in Millions	12 Months Ended
	Jun. 30, 2016 USD ($) item	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Goodwill and Purchased Intangible Assets
Number of operating segments \| item	1
Number of reporting units \| item	1
Impairment of goodwill \| $	$ 0.0	$ 0.0	$ 0.0
Advertising Expenses
Advertising expenses \| $	$ 0.3	$ 0.5	$ 0.6
Minimum
Goodwill and Purchased Intangible Assets
Estimated useful lives of purchased intangible assets	1 year
Maximum
Goodwill and Purchased Intangible Assets
Estimated useful lives of purchased intangible assets	6 years

Summary of Significant Accounting Policies - Share-Based Compensation, Net Loss Per Common Share and Income Taxes (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended				12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Apr. 17, 2014	Feb. 28, 2013	Aug. 01, 2011
Anti-dilutive securities excluded from computation of earnings per share
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)					16,222	18,294	20,519
Numerator:
Net loss used in computing net loss per share					$ (25,504)	$ (40,209)	$ (35,448)
Denominator:
Weighted average shares used in computing loss per share Basic and Diluted	79,170	78,746	77,924	77,290	80,509	78,277	75,804
Income Taxes
Reduction in uncertain tax position due to lapse of various statutes of limitation					$ 1,600
Subsequent period within which no material changes in unrecognized tax benefits are expected					12 months
3.75% Convertible Notes
Anti-dilutive securities excluded from computation of earnings per share
Interest rate (as a percent)	3.75%				3.75%	3.75%				3.75%
Conversion shares outstanding principal amount excluded in the potentially diluted shares					3,900
3.50% Convertible Notes
Anti-dilutive securities excluded from computation of earnings per share
Interest rate (as a percent)	3.50%				3.50%	3.50%		3.50%	3.50%
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)					8,378	8,378	8,378
3.50% Series A Convertible Notes
Anti-dilutive securities excluded from computation of earnings per share
Interest rate (as a percent)	3.50%				3.50%	3.50%		3.50%
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)						2,896	4,985
Conversion shares outstanding principal amount excluded in the potentially diluted shares					13,200
Stock options
Anti-dilutive securities excluded from computation of earnings per share
Expiration period					10 years
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)					2,377	2,537	3,209
RSUs, PSUs and MSUs
Anti-dilutive securities excluded from computation of earnings per share
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)					5,467	4,483	3,947

Balance Sheet Components - Summary (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Cash and Cash Equivalents
Cash	$ 95,906	$ 73,444
Money market funds	13,362	6,107
Commercial paper	8,938
Municipal government securities	1,565
Cash and cash equivalents	119,771	79,551	$ 92,346	$ 73,313
Accounts receivable, net
Accounts receivable	54,974	75,631
Unbilled fees and services	2,662	2,805
Accounts and other receivable, gross	57,636	78,436
Less: Allowance for doubtful accounts	(826)	(709)
Accounts receivable, net	56,810	77,727
Allowance for doubtful accounts, payments and credits	200	400
Allowance for doubtful accounts, additions	300	400
Allowance for doubtful accounts, write-offs	10	200
Financing receivables
Sales-type leases	3,500
Capital leases		0
Accounts receivable with contractual maturities of more than one year	4,100
Allowance for doubtful accounts related to financing receivables	0	0
Gross	10,838	2,674
Unearned income	(623)
Total, net	10,215	2,674
Current	2,618	1,032
Non-current	7,597	1,642
Capital leases future minimum payments receivable
2017	1,046
2018	930
2019	930
2020	930
2021	930
2022	232
Total	4,998
Inventories
Raw materials	50,480	46,356
Work-in-process	20,190	15,445
Finished goods	45,317	44,350
Total inventories	115,987	106,151
Property and equipment, net
Property and equipment, gross	100,331	102,206
Less: Accumulated depreciation	(72,453)	(70,377)
Property and equipment, net	27,878	31,829
Depreciation expense	10,300	11,600	$ 12,200
Lease Receivables
Financing receivables
Gross	4,998
Unearned income	(623)
Total, net	4,375
Current	840
Non-current	3,535
Financed Service Contracts and Other
Financing receivables
Gross	5,840	2,674
Total, net	5,840	2,674
Current	1,778	1,032
Non-current	4,062	1,642
Furniture and fixtures
Property and equipment, net
Property and equipment, gross	4,527	4,674
Computer and office equipment
Property and equipment, net
Property and equipment, gross	11,485	11,808
Software
Property and equipment, net
Property and equipment, gross	11,104	10,992
Leasehold improvements
Property and equipment, net
Property and equipment, gross	21,632	19,428
Machinery and equipment
Property and equipment, net
Property and equipment, gross	47,171	47,031
Construction in progress
Property and equipment, net
Property and equipment, gross	$ 4,412	$ 8,273

Balance Sheet Components - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Accumulated Other Comprehensive Income.
Balance	$ 75,780
Balance	59,660	$ 75,780
Foreign Currency Items
Accumulated Other Comprehensive Income.
Balance	1,168	2,364
Other comprehensive income (loss) before reclassifications	(47)	(1,196)
Net current period other comprehensive income (loss)	(47)	(1,196)
Balance	1,121	1,168
Unrealized Gains and Losses on Available-for-Sale Securities
Accumulated Other Comprehensive Income.
Balance	(77)	18
Other comprehensive income (loss) before reclassifications	63	(99)
Amounts reclassified from accumulated other comprehensive income	(1)	4
Net current period other comprehensive income (loss)	62	(95)
Balance	(15)	(77)
Change in Defined Benefit Pension Obligation
Accumulated Other Comprehensive Income.
Balance	(1,517)	(567)
Other comprehensive income (loss) before reclassifications	(549)	(950)
Net current period other comprehensive income (loss)	(549)	(950)
Balance	(2,066)	(1,517)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income.
Balance	(426)	1,815
Other comprehensive income (loss) before reclassifications	(533)	(2,245)
Amounts reclassified from accumulated other comprehensive income	(1)	4
Net current period other comprehensive income (loss)	(534)	(2,241)
Balance	$ (960)	$ (426)

Foreign Exchange Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Foreign currency forward contracts	$ 0	$ 0
Other expense, net
Foreign currency transactions gain (loss)	2,141	(1,196)	$ 2,053
Other expense, net \| Foreign contracts
Foreign currency transactions gain (loss)	$ (4,155)	$ (1,355)	$ (2,144)
Maximum
Length of forward contracts	3 months

Financial Instruments - Investment (Details) $ in Thousands	12 Months Ended
Financial Instruments - Investment (Details) $ in Thousands	Jun. 30, 2016 USD ($) position	Jun. 30, 2015 USD ($) position	Jun. 30, 2014 USD ($)	Jun. 30, 2013 USD ($)
Cash, cash equivalents and short-term investments
Amortized Cost	$ 167,025	$ 143,934
Gross Unrealized Gains	8	6
Gross Unrealized Losses	(23)	(83)
Cash and Cash Equivalents	119,771	79,551	$ 92,346	$ 73,313
Short-term investments	47,239	64,306
Other-than-temporary impairments	0	0
Amortized Cost
Due in 1 year or less	24,091
Due in 1-2 years	23,163
Total Amortized Cost	47,254
Fair Value
Due in 1 year or less	24,091
Due in 1-2 years	23,148
Available-for-sale Securities	47,239
Gross Unrealized Losses
Less Than 12 Months	(3)	(49)
12 Months or Greater	(20)	(34)
Total	(23)	(83)
Estimated Fair Value
Less Than 12 Months	6,325	35,933
12 Months or Greater	23,148	16,384
Total	$ 29,473	$ 52,317
Number of positions held in an unrealized loss position \| position	11	23
Other-than-temporary impairments	$ 0	$ 0
U.S. government agencies securities
Gross Unrealized Losses
Less Than 12 Months		(1)
12 Months or Greater	(17)	(13)
Total	(17)	(14)
Estimated Fair Value
Less Than 12 Months		11,004
12 Months or Greater	19,988	10,987
Total	19,988	21,991
Corporate debt securities
Gross Unrealized Losses
Less Than 12 Months	(3)	(45)
12 Months or Greater	(3)	(21)
Total	(6)	(66)
Estimated Fair Value
Less Than 12 Months	6,325	23,428
12 Months or Greater	3,160	5,397
Total	9,485	28,825
Non-U.S. government securities
Gross Unrealized Losses
Less Than 12 Months		(3)
Total		(3)
Estimated Fair Value
Less Than 12 Months		1,501
Total		1,501
Cash.
Cash, cash equivalents and short-term investments
Amortized Cost	95,906	73,444
Cash and Cash Equivalents	95,906	73,444
Level 1
Cash, cash equivalents and short-term investments
Amortized Cost	13,362	6,107
Cash and Cash Equivalents	13,362	6,107
Level 1 \| Money market funds
Cash, cash equivalents and short-term investments
Amortized Cost	13,362	6,107
Cash and Cash Equivalents	13,362	6,107
Level 2
Cash, cash equivalents and short-term investments
Amortized Cost	57,757	64,383
Gross Unrealized Gains	8	6
Gross Unrealized Losses	(23)	(83)
Cash and Cash Equivalents	10,503
Short-term investments	47,239	64,306
Level 2 \| Commercial paper
Cash, cash equivalents and short-term investments
Amortized Cost	14,704	11,989
Cash and Cash Equivalents	8,938
Short-term investments	5,766	11,989
Level 2 \| U.S. government agencies securities
Cash, cash equivalents and short-term investments
Amortized Cost	28,000	21,999
Gross Unrealized Gains	7	6
Gross Unrealized Losses	(17)	(14)
Short-term investments	27,990	21,991
Level 2 \| U.S. Treasury securities
Cash, cash equivalents and short-term investments
Amortized Cost	3,997
Gross Unrealized Gains	1
Short-term investments	3,998
Level 2 \| Municipal debt securities
Cash, cash equivalents and short-term investments
Amortized Cost	1,565
Cash and Cash Equivalents	1,565
Level 2 \| Foreign government bonds
Cash, cash equivalents and short-term investments
Amortized Cost		1,504
Gross Unrealized Losses		(3)
Short-term investments		1,501
Level 2 \| Corporate debt securities
Cash, cash equivalents and short-term investments
Amortized Cost	9,491	28,891
Gross Unrealized Losses	(6)	(66)
Short-term investments	$ 9,485	$ 28,825

Financial Instruments - Convertible Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015	Apr. 17, 2014	Feb. 28, 2013	Aug. 01, 2011
3.75% Convertible Notes
Fair value measurement
Interest rate (as a percent)	3.75%	3.75%			3.75%
3.50% Convertible Notes
Fair value measurement
Interest rate (as a percent)	3.50%	3.50%	3.50%	3.50%
3.50% Series A Convertible Notes
Fair value measurement
Interest rate (as a percent)	3.50%	3.50%	3.50%
Non-recurring basis \| Carrying Value \| Level 2
Fair value measurement
Long term debt	$ 210,412	$ 199,655
Non-recurring basis \| Carrying Value \| 3.75% Convertible Notes \| Level 2
Fair value measurement
Long term debt	36,400	92,863
Non-recurring basis \| Carrying Value \| 3.50% Convertible Notes \| Level 2
Fair value measurement
Long term debt	43,195	42,332
Non-recurring basis \| Carrying Value \| 3.50% Series A Convertible Notes \| Level 2
Fair value measurement
Long term debt	66,613	64,460
Non-recurring basis \| Carrying Value \| Secured Loan \| Level 2
Fair value measurement
Long term debt	64,204
Non-recurring basis \| Fair Value \| Level 2
Fair value measurement
Long term debt	233,194	270,635
Non-recurring basis \| Fair Value \| 3.75% Convertible Notes \| Level 2
Fair value measurement
Long term debt	36,487	102,645
Non-recurring basis \| Fair Value \| 3.50% Convertible Notes \| Level 2
Fair value measurement
Long term debt	51,450	65,230
Non-recurring basis \| Fair Value \| 3.50% Series A Convertible Notes \| Level 2
Fair value measurement
Long term debt	81,053	$ 102,760
Non-recurring basis \| Fair Value \| Secured Loan \| Level 2
Fair value measurement
Long term debt	$ 64,204

Goodwill and Purchased Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 58,054	$ 58,091
Currency translation and other adjustments	(206)	(37)
Balance at the end of the period	57,848	58,054	$ 58,091
Impairment of goodwill	0	0	0
Net Amount	7,611
Amortization expense	8,000	7,900	$ 8,400
Estimated future amortization expense of purchased intangible assets
2017	7,568
2018	43
Net Amount	$ 7,611
Minimum
Changes in the carrying amount of goodwill
Useful Lives	1 year
Maximum
Changes in the carrying amount of goodwill
Useful Lives	6 years
Developed technology
Changes in the carrying amount of goodwill
Gross Carrying Amount	$ 46,743	46,700
Accumulated Amortization	(39,132)	(31,136)
Net Amount	7,611	15,564
Estimated future amortization expense of purchased intangible assets
Net Amount	$ 7,611	$ 15,564
Developed technology \| Minimum
Changes in the carrying amount of goodwill
Useful Lives	5 years	5 years
Developed technology \| Maximum
Changes in the carrying amount of goodwill
Useful Lives	6 years	6 years

Commitments and Contingencies - Operating Leases, Long-Term Debt and Royalty Agreement (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Operating Lease Agreements and Long-term Debt
Rent expense	$ 8,300	$ 8,000	$ 6,500
Future minimum lease payments under non-cancelable operating lease agreements
2017	8,812
2018	8,330
2019	4,767
2020	4,128
2021	3,803
Thereafter	10,024
Total	39,864
Long-term principal and interest on Convertible Notes
2017	49,602
2018	125,923
2019	8,295
2020	8,015
2021	56,519
Total	248,354
Liability recorded associated with indemnification agreements	0
License agreement \| WARF (Wisconsin Alumni Research Foundation)
License and Royalty Agreements
Royalty costs	600	600	$ 700
Royalty amount accrued	100	$ 200
License agreement \| WARF (Wisconsin Alumni Research Foundation) \| Minimum
License and Royalty Agreements
Annual commitment amount	$ 300

Commitments and Contingencies - Litigation (Details) - USD ($)								3 Months Ended
	Feb. 12, 2016	Jan. 21, 2016	Nov. 27, 2015	Oct. 29, 2015	Feb. 27, 2014	May 21, 2012	Apr. 28, 2011	Dec. 31, 2015	Sep. 30, 2015	Feb. 11, 2016
Rotary Systems
Contingencies
Period to identify alleged trade secrets with specificity or face dismissal of claim with prejudice						60 days
Rotary Systems \| Minimum
Contingencies
Claim for damages							$ 50,000
Cowealth Medical
Contingencies
Claim for damages					$ 170,000,000
Awarded value for the damages	$ 2,400,000			$ 3,400,000
Percentage of interest on awarded amount		5.00%
Period for interest not accrued after date of award		30 days
Recorded charge for awarded amount								$ 2,100,000	$ 3,400,000
Additional amount recorded			$ 5,500,000
Accrual amount of litigation										$ 0
Cowealth Medical \| Parent Company
Contingencies
Counterclaim for damages filed by the company					$ 35,000,000

Stockholders' Equity (Details) - shares shares in Millions	Jun. 30, 2016	Jun. 30, 2015	Apr. 17, 2014	Feb. 28, 2013	Aug. 01, 2011
Stockholders' equity
Number of shares of common stock reserved for issuance under stock incentive plans and employee stock purchase plan	8.8
3.75% Convertible Notes
Stockholders' equity
Interest rate (as a percent)	3.75%	3.75%			3.75%
3.50% Convertible Notes
Stockholders' equity
Authorized common stock reserved for future issuance (in shares)	13.2
Interest rate (as a percent)	3.50%	3.50%	3.50%	3.50%

Stock Incentive Plan and Employee Stock Purchase Plan - Outstanding Stock Incentive Plans (Details)	12 Months Ended
	Jun. 30, 2016 item
Stock Incentive Plan
Number of stock incentive plans	2
2007 Plan \| Non-qualified stock option \| Minimum
Stock Incentive Plan
Exercise price of stock options as a percentage of fair market value on the grant date	85.00%
2007 Plan \| Stock options
Stock Incentive Plan
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 Plan \| Stock options \| Minimum
Stock Incentive Plan
Exercise price of stock options as a percentage of fair market value on the grant date	100.00%
2007 Plan \| Restricted Stock Units
Stock Incentive Plan
Percentage of the award vesting at first anniversary	50.00%
Percentage of the award vesting at second anniversary	50.00%
2007 Plan \| Time-based RSUs
Stock Incentive Plan
Annual vesting percentage	25.00%

Stock Incentive Plan and Employee Stock Purchase Plan - Share-Based Compensation Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Share-based compensation charges
Share-based compensation expense	$ 12,638	$ 13,930	$ 11,313
Capitalized share-based compensation costs			500
Cost of revenue
Share-based compensation charges
Share-based compensation expense	1,677	1,874	1,912
Research and development expense
Share-based compensation charges
Share-based compensation expense	2,564	2,971	2,585
Selling and marketing
Share-based compensation charges
Share-based compensation expense	2,633	2,945	2,059
General and administrative
Share-based compensation charges
Share-based compensation expense	$ 5,764	$ 6,140	$ 4,757

Stock Incentive Plan and Employee Stock Purchase Plan - Stock Options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Additional disclosures
Fair value of common stock (in dollars per share)	$ 5.19
Share-based compensation expense	$ 12,638	$ 13,930	$ 11,313
Stock options
Options Outstanding
Balance at the beginning of the year (in shares)	2,537	3,209	4,844
Options exercised (in shares)	(59)	(529)	(1,062)
Options forfeited/expired (in shares)	(101)	(143)	(573)
Balance at the end of the year (in shares)	2,377	2,537	3,209	4,844
Vested or Expected to vest at the end of the year (in shares)	2,377
Exercisable at the end of the year (in shares)	2,304
Weighted Average Exercise Price
Balance at the beginning of the year (in dollars per share)	$ 7.91	$ 7.44	$ 7.15
Options exercised (in dollars per share)	4.89	4.84	5.01
Options forfeited/expired (in dollars per share)	7.53	8.72	9.49
Balance at the end of the year (in dollars per share)	8.00	$ 7.91	$ 7.44	$ 7.15
Vested or Expected to vest at the end of the year (in dollars per share)	8.00
Exercisable at the end of the year (in dollars per share)	$ 8.06
Weighted Average Remaining Contractual Life (In Years)
Balance	3 years 11 months 19 days	5 years 1 month 6 days	5 years 4 months 17 days	6 years 2 months 1 day
Vested or Expected to vest at the end of the year	3 years 11 months 19 days
Exercisable at the end of the year	3 years 10 months 21 days
Aggregate Intrinsic Value (in thousands)
Balance at the beginning of the year	$ 1,862	$ 8,251	$ 2,771
Balance at the end of the year	452	1,862	8,251	$ 2,771
Vested or Expected to vest at the end of the year	452
Exercisable at the end of the year	443
Additional disclosures
Total intrinsic value of options exercised	100	1,400	3,800
Share-based compensation expense	800	1,100	1,700
Realized excess tax benefits related to stock options exercises	0	$ 0	$ 0
Unrecognized compensation cost related to unvested stock options, net of estimated forfeitures	$ 100
Weighted average period for recognition of compensation costs	5 months 19 days

Stock Incentive Plan and Employee Stock Purchase Plan - Outstanding and Exercisable Options (Details) - Stock options	12 Months Ended
	Jun. 30, 2016 $ / shares shares
Options Outstanding
Number Outstanding \| shares	2,377,176
Weighted-Average Remaining Contractual Life (Years)	3 years 11 months 19 days
Weighted-Average Exercise Price (in dollars per share)	$ 8.00
Options Exercisable
Number Outstanding \| shares	2,303,766
Weighted-Average Exercise Price (in dollars per share)	$ 8.06
$4.00 - 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)	4.00
Exercise price, high end of range (in dollars per share)	$ 4.01
Options Outstanding
Number Outstanding \| shares	332,613
Weighted-Average Remaining Contractual Life (Years)	4 years 5 months 27 days
Weighted-Average Exercise Price (in dollars per share)	$ 4.01
Options Exercisable
Number Outstanding \| shares	332,613
Weighted-Average Exercise Price (in dollars per share)	$ 4.01
$4.23 - 5.68
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)	$ 5.68
Options Outstanding
Number Outstanding \| shares	356,621
Weighted-Average Remaining Contractual Life (Years)	4 years 1 month 17 days
Weighted-Average Exercise Price (in dollars per share)	$ 5.37
Options Exercisable
Number Outstanding \| shares	341,581
Weighted-Average Exercise Price (in dollars per share)	$ 5.40
$5.74 - 6.28
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	5.74
Exercise price, high end of range (in dollars per share)	$ 6.28
Options Outstanding
Number Outstanding \| shares	443,640
Weighted-Average Remaining Contractual Life (Years)	5 years 3 months 29 days
Weighted-Average Exercise Price (in dollars per share)	$ 6.15
Options Exercisable
Number Outstanding \| shares	416,552
Weighted-Average Exercise Price (in dollars per share)	$ 6.14
$6.32 - 6.63
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	6.32
Exercise price, high end of range (in dollars per share)	$ 6.63
Options Outstanding
Number Outstanding \| shares	343,271
Weighted-Average Remaining Contractual Life (Years)	3 years 6 months 7 days
Weighted-Average Exercise Price (in dollars per share)	$ 6.51
Options Exercisable
Number Outstanding \| shares	339,041
Weighted-Average Exercise Price (in dollars per share)	$ 6.51
$6.75 - 682
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	6.75
Exercise price, high end of range (in dollars per share)	$ 6.82
Options Outstanding
Number Outstanding \| shares	13,500
Weighted-Average Remaining Contractual Life (Years)	5 years 2 months 19 days
Weighted-Average Exercise Price (in dollars per share)	$ 6.77
Options Exercisable
Number Outstanding \| shares	13,500
Weighted-Average Exercise Price (in dollars per share)	$ 6.77
$6.96
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	$ 6.96
Options Outstanding
Number Outstanding \| shares	340,845
Weighted-Average Remaining Contractual Life (Years)	5 years 9 months 29 days
Weighted-Average Exercise Price (in dollars per share)	$ 6.96
Options Exercisable
Number Outstanding \| shares	313,793
Weighted-Average Exercise Price (in dollars per share)	$ 6.96
$7.06 - 20.47
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, low end of range (in dollars per share)	7.06
Exercise price, high end of range (in dollars per share)	$ 28.47
Options Outstanding
Number Outstanding \| shares	546,686
Weighted-Average Remaining Contractual Life (Years)	1 year 6 months 7 days
Weighted-Average Exercise Price (in dollars per share)	$ 15.28
Options Exercisable
Number Outstanding \| shares	546,686
Weighted-Average Exercise Price (in dollars per share)	$ 15.28

Stock Incentive Plan and Employee Stock Purchase Plan - Restricted Stock (Details) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2012 item	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2015 USD ($) $ / shares shares	Jun. 30, 2014 USD ($) $ / shares shares	Jun. 30, 2012 shares
Additional disclosures
Share-based compensation expense \| $		$ 12,638	$ 13,930	$ 11,313
Fiscal 2018
Additional disclosures
Percentage of performance target achieved		100.00%
Restricted Stock Units, Performance Stock Units and Market Stock Units
Total Number of Shares Underlying
Unvested at the beginning of the year (in shares)		4,483,000	3,947,000	3,387,000
Granted (in shares)		3,148,000	2,212,000	2,930,000
Vested (in shares)		(1,571,000)	(1,175,000)	(913,000)
Cancelled/Forfeited (in shares)		(694,000)	(501,000)	(1,457,000)
Unvested at the end of the year (in shares)		5,366,000	4,483,000	3,947,000
Weighted Average Grant Date Fair Value Per Share
Unvested at the beginning of the year (in dollars per share) \| $ / shares		$ 6.86	$ 6.24	$ 5.66
Granted (in dollars per share) \| $ / shares		6.12	6.77	7.28
Vested (in dollars per share) \| $ / shares		6.81	6.73	8.70
Cancelled/Forfeited (in dollars per share) \| $ / shares		6.59	6.20	5.44
Unvested at the end of the year (in dollars per share) \| $ / shares		$ 6.48	6.86	6.24
Additional disclosures
Unrecognized compensation cost \| $		$ 20,400
Weighted average period for recognition of compensation costs		2 years 3 months 11 days
Weighted average grant date fair value (in dollars per share) \| $ / shares		$ 6.12	$ 6.77	$ 7.28
Vested (in shares)		1,571,000	1,175,000	913,000
Restricted Stock Units
Total Number of Shares Underlying
Unvested at the beginning of the year (in shares)		3,325,000	3,116,000	2,424,000
Granted (in shares)		2,563,000	1,679,000	2,125,000
Vested (in shares)		(1,138,000)	(1,150,000)	(888,000)
Cancelled/Forfeited (in shares)		(546,000)	(320,000)	(545,000)
Unvested at the end of the year (in shares)		4,204,000	3,325,000	3,116,000
Weighted Average Grant Date Fair Value Per Share
Granted (in dollars per share) \| $ / shares		$ 6.01	$ 6.79	$ 7.32
Additional disclosures
Unrecognized compensation cost \| $		$ 17,700
Share-based compensation expense \| $		$ 7,600	$ 7,900	$ 6,400
Weighted average grant date fair value (in dollars per share) \| $ / shares		$ 6.01	$ 6.79	$ 7.32
Aggregate fair market value of units vested \| $		$ 7,600
Vested (in shares)		1,138,000	1,150,000	888,000
Performance Stock Units
Total Number of Shares Underlying
Unvested at the beginning of the year (in shares)		20,000	25,000	556,000
Granted (in shares)			20,000	70,000	1,000,000
Vested (in shares)		(20,000)	(25,000)	(25,000)
Cancelled/Forfeited (in shares)				(576,000)
Unvested at the end of the year (in shares)			20,000	25,000
Additional disclosures
Share-based compensation expense \| $		$ 40	$ 200	$ 100
Vested (in shares)		20,000	25,000	25,000
Cancelled (in shares)		0	0	(38,000)
Market Stock Units
Total Number of Shares Underlying
Unvested at the beginning of the year (in shares)		1,138,000	806,000	407,000
Granted (in shares)		585,000	513,000	735,000
Vested (in shares)		(413,000)
Cancelled/Forfeited (in shares)		(148,000)	(181,000)	(336,000)
Unvested at the end of the year (in shares)		1,162,000	1,138,000	806,000
Weighted Average Grant Date Fair Value Per Share
Granted (in dollars per share) \| $ / shares		$ 6.61	$ 6.64	$ 7.18
Additional disclosures
Unrecognized compensation cost \| $		$ 2,800
Share-based compensation expense \| $		$ 3,000	$ 3,400	$ 1,800
Weighted average grant date fair value (in dollars per share) \| $ / shares		$ 6.61	$ 6.64	$ 7.18
Vested (in shares)		413,000
Market Stock Units \| Fiscal 2017
Additional disclosures
Percentage of performance target achieved			100.00%
Expected to vest (in shares)		200,000
Market Stock Units \| Fiscal 2018
Additional disclosures
Expected to vest (in shares)		300,000
Stock options
Additional disclosures
Weighted average period for recognition of compensation costs		5 months 19 days
Share-based compensation expense \| $		$ 800	$ 1,100	$ 1,700
MSU Program \| Market Stock Units
Weighted Average Grant Date Fair Value Per Share
Granted (in dollars per share) \| $ / shares		$ 0.40	$ 0.50	$ 0.00
Additional disclosures
Share-based compensation expense \| $		$ 600	$ 500	$ 700
Weighted average grant date fair value (in dollars per share) \| $ / shares		$ 0.40	$ 0.50	$ 0.00
Number of measurement periods \| item	2
MSU Program \| Market Stock Units \| Maximum
Additional disclosures
Target number of shares that participating executives may earn (as a percent)	150.00%

Stock Incentive Plan and Employee Stock Purchase Plan - ESPP (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Other disclosures
Share-based compensation expense	$ 12,638,000	$ 13,930,000	$ 11,313,000
ESPP
Stock Incentive Plan
Purchase price expressed as percentage of fair market value of common stock	85.00%
Other disclosures
Share-based compensation expense	$ 1,300,000	$ 1,300,000	$ 1,300,000
Shares issued under the ESPP	700,000	700,000
Weighted average fair value (in dollars per share)	$ 4.92	$ 5.61
Unrecognized compensation cost	$ 600,000
Weighted average period for recognition of compensation costs	7 months 6 days
ESPP \| Maximum
Stock Incentive Plan
Payroll deductions as percentage of salaries	10.00%
Number of shares per period up to which employees may purchase	2,500
Value of shares up to which employees may purchase in any calendar year	$ 25,000
Weighted average assumptions used for determining fair value of options
Risk-free interest rate (as a percent)	0.51%	0.26%	0.13%
Expected life	1 year	1 year	1 year
Expected volatility (as a percent)	49.10%	41.30%	46.50%
ESPP \| Minimum
Weighted average assumptions used for determining fair value of options
Risk-free interest rate (as a percent)	0.70%	0.07%	0.06%
Expected life	6 months	6 months	6 months
Expected volatility (as a percent)	33.30%	27.10%	27.50%

Income Taxes - Classification & Deferred Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Components of loss before provision for income taxes
Domestic	$ (32,710)	$ (46,178)	$ (42,485)
Foreign	9,542	8,388	10,125
Loss before provision for income taxes	(23,168)	(37,790)	(32,360)
Current:
State	17	33	78
Foreign	2,723	1,722	2,918
Total current	2,740	1,755	2,996
Deferred:
Foreign	(404)	664	92
Total deferred	(404)	664	92
Total provision for income taxes	2,336	2,419	3,088
Income tax payable	2,300	400	2,000
Reconciliation of income taxes at the statutory federal income tax rate to the provision for income taxes
At federal statutory rate	(8,108)	(13,226)	(11,326)
State tax, net of federal benefit	17	33	78
Stock-based compensation expense	701	579	332
Debt extinguishment	338
Other non-deductible permanent items	877	779	752
Change in valuation allowance	10,370	14,744	13,997
Credits	(795)	(79)	(114)
Other	20		(112)
Foreign taxes	(1,084)	(411)	(519)
Total provision for income taxes	2,336	2,419	$ 3,088
Deferred tax assets:
Federal and state net operating losses	117,524	118,998
Accrued expenses and reserves	6,392	6,110
Deferred revenue	4,853	2,721
Credits	18,168	17,022
Share-based compensation expense	6,323	5,964
Capitalized research and development	5,882	3,959
Unicap	2,666	1,749
Other	859	372
Total deferred tax assets	162,667	156,895
Deferred tax liabilities:
Debt discount	(1,805)	(4,318)
Section 481 adjustment	(1,140)
Fixed assets/intangibles	(961)	(4,846)
Total deferred tax liabilities	(3,906)	(9,164)
Valuation allowance	(158,264)	(147,722)
Net deferred tax assets	497	$ 9
Income tax uncertainties
Cumulative amount of undistributed earnings upon which no U.S. income taxes provided	$ 22,400

Income Taxes - Loss Carryforwards (Details) $ in Millions	Jun. 30, 2016 USD ($)
Operating loss carryforwards
Amount expected to be credited to additional paid-in-capital	$ 3.8
Federal
Operating loss carryforwards
Net operating loss carryforwards	325.3
State
Operating loss carryforwards
Net operating loss carryforwards	$ 145.6

Income Taxes - Tax Credits and Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Valuation allowance
Valuation allowance percentage established for domestic and foreign net deferred tax assets	100.00%
Aggregate changes in the balance of gross unrecognized tax benefits
Balance at beginning of year	$ 17,023	$ 17,169	$ 16,749
Tax positions related to current year: Additions	1,811	726	1,489
Tax positions related to prior years: Additions	449	29
Tax positions related to prior years: Reductions	(2,640)	(901)	(1,069)
Balance at end of year	16,643	17,023	$ 17,169
Reduction in uncertain tax position due to lapse of various statutes of limitation	$ 1,600
Subsequent period within which no material changes in unrecognized tax benefits are expected	12 months
Uncertain tax benefits that, if realized, would affect the effective tax rate	$ 11,200
Accrued interest and penalties related to uncertain tax positions	500	$ 900
Federal \| Research and development
Income Tax Contingency [Line Items]
Tax credits	17,900
State \| Research and development
Income Tax Contingency [Line Items]
Tax credits	$ 17,600

Other Expense, Net (Details) - USD ($) $ in Thousands	12 Months Ended
Other Expense, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Other Expense, Net.
Interest expense on convertible notes	$ (17,460)	$ (16,518)	$ (14,287)
Foreign currency transaction loss	(2,014)	(2,551)	(91)
Other	1,179	448	162
Total other expense, net	$ (18,295)	$ (18,621)	$ (14,216)

Debt (Details) - USD ($) $ / shares in Units, shares in Millions					1 Months Ended		3 Months Ended	12 Months Ended
	Aug. 01, 2016	Jan. 11, 2016	Apr. 17, 2014	Aug. 01, 2011	Jan. 31, 2016	Feb. 28, 2013	Mar. 31, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Debt
Carrying amount of the equity conversion component								$ 27,514,000
Principal amount of the Notes								219,858,000
Aggregate principal amount of debt refinanced										$ 7,844,000
Unamortized debt costs								(4,271,000)
Unamortized debt discount								(5,175,000)
Net carrying amount								210,412,000
Interest expense related to contractual interest coupon								9,411,000	$ 7,774,000	7,774,000
Interest expense related to amortization of debt discount								6,321,000	7,241,000	5,105,000
Interest expense related to amortization of debt issuance costs								1,728,000	1,503,000	1,408,000
Total interest expense recognized								17,460,000	$ 16,518,000	$ 14,287,000
Secured Loan
Debt
Aggregate principal amount of debt issued		$ 7,000,000
Quarterly installment payment		875,000
Proceeds from debt, net of costs		65,500,000
Offering costs		3,100,000
Initial purchaser's discount and commission		$ 1,400,000
Amortization period		5 years
EBITDA Monitoring Period		12 months
Prepayment premium if loan repaid or accelerated within the first year		2.00%
Prepayment premium if loan repaid or accelerated within the second year		1.00%
Principal amount of the Notes								68,250,000
Unamortized debt costs								(2,786,000)
Unamortized debt discount								(1,260,000)
Net carrying amount								$ 64,204,000
Secured Loan \| Option (ii)
Debt
Interest rate (as a percent)		3.25%
Secured Loan \| Maximum \| 3.50% Convertible Notes
Debt
Debt instrument maturity before reference instrument maturity date		120 days
Secured Loan \| One month LIBOR \| Option (i)
Debt
Margin on interest rate		7.00%
Secured Loan \| One month LIBOR \| Option (ii)
Debt
Margin on interest rate		1.00%
Secured Loan \| LIBOR \| Minimum \| Option (i)
Debt
Interest rate (as a percent)		1.00%
Secured Loan \| Federal Funds Rate \| Option (ii)
Debt
Margin on interest rate		0.50%
Secured Loan \| US Prime Rate \| Option (ii)
Debt
Margin on interest rate		4.75%
3.75% Convertible Note and 3.50% Convertible Note
Debt
Charge associated with repurchase of notes							$ 1,000,000
3.75% Convertible Notes
Debt
Aggregate principal amount of debt issued				$ 100,000,000
Interest rate (as a percent)				3.75%				3.75%	3.75%
Proceeds from debt, net of costs				$ 96,100,000
Amortization period								1 month
Debt issuance costs, amortization period				5 years
Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the notes to be convertible into common stock								30 days
Number of consecutive business days immediately after any five consecutive trading day period during the note measurement period								5 days
Number of consecutive trading days before five consecutive business days during the note measurement period								5 days
Principal amount used for debt instrument conversion ratio								$ 1,000
Number of working days preceding maturity date for delivery of shares or payment of cash								33 days
Conversion rate, number of shares to be issued per $1000 of principal amount (in shares)								105.5548
Conversion price (in dollars per share)								$ 9.47
Repurchase price, as percentage of principal amount, if company undergoes change of control								100.00%
Number of days within 30 consecutive trading days in which the closing price of the entity's common stock must exceed the conversion price for the notes to be redeemable								20 days
Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the notes to be redeemable								30 days
Discount rate on liability component (as a percent)				10.00%
Carrying amount of the equity conversion component				$ 24,100,000				$ 19,670,000
Debt issuance costs and discount allocated to equity conversion component				900,000
Principal amount of the Notes retired					$ 63,400,000
Cash paid to Participating Holders in connection with debt refinancing					$ 66,600,000
Potentially dilutive shares outstanding					6.7
Principal amount of the Notes				$ 75,900,000	$ 36,600,000			36,608,000
Unamortized debt costs								(26,000)
Unamortized debt discount								(182,000)
Net carrying amount								$ 36,400,000
Effective interest rate (as a percent)								10.90%
3.75% Convertible Notes \| Minimum
Debt
Number of days within 30 consecutive trading days in which the closing price of the entity's common stock must exceed the conversion price for the notes to be convertible into common stock								20 days
Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the notes to be convertible								130.00%
Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the notes to be redeemable								130.00%
3.75% Convertible Notes \| Maximum
Debt
Percentage of the trading price to the product of the sale price of the entity's common stock and the conversion rate								98.00%
3.75% Convertible Notes \| Subsequent Event
Debt
Aggregate principal amount of debt issued	$ 36,600,000
Interest rate (as a percent)	3.75%
Cash paid to Participating Holders in connection with debt refinancing	$ 37,300,000
Total interest expense recognized	$ 700,000
3.50% Convertible Notes
Debt
Aggregate principal amount of debt issued						$ 115,000,000
Interest rate (as a percent)			3.50%			3.50%		3.50%	3.50%
Proceeds from debt, net of costs						$ 110,500,000
Debt issuance costs, amortization period						5 years
Principal amount used for debt instrument conversion ratio								$ 1,000
Conversion rate, number of shares to be issued per $1000 of principal amount (in shares)								187.6877
Conversion price (in dollars per share)								$ 5.33
Repurchase price, as percentage of principal amount, if company undergoes change of control								100.00%
Principal amount of the Notes								$ 44,654,000
Aggregate principal amount of debt refinanced			$ 70,300,000
Conversion rate, amount of debt to be issued per $1000 of principal amount			1,000
Unamortized debt costs								(1,459,000)
Net carrying amount								$ 43,195,000
3.50% Series A Convertible Notes
Debt
Aggregate principal amount of debt issued			$ 70,300,000
Interest rate (as a percent)			3.50%					3.50%	3.50%
Amortization period								19 months
Number of days within 30 consecutive trading days in which the closing price of the entity's common stock must exceed the conversion price for the notes to be convertible into common stock								20 days
Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the notes to be convertible into common stock								30 days
Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the notes to be convertible								130.00%
Number of consecutive business days immediately after any five consecutive trading day period during the note measurement period								5 days
Number of consecutive trading days before five consecutive business days during the note measurement period								5 days
Number of working days preceding maturity date for delivery of shares or payment of cash								17 days
Conversion rate, number of shares to be issued per $1000 of principal amount (in shares)								187.6877
Conversion price (in dollars per share)								$ 5.33
Repurchase price, as percentage of principal amount, if company undergoes change of control								100.00%
Discount rate on liability component (as a percent)								7.00%
Carrying amount of the equity conversion component								$ 7,844,000
Principal amount of the Notes								70,346,000
Payments made to convertible note holders			$ 400,000
Portion of cash amount paid allocated to debt discount								400,000
Portion of cash amount paid allocated to equity component								47,000
Unamortized debt discount								(3,733,000)
Net carrying amount								$ 66,613,000
Effective interest rate (as a percent)								7.10%
3.50% Series A Convertible Notes \| Maximum
Debt
Percentage of the trading price to the product of the sale price of the entity's common stock and the conversion rate								98.00%

Employee Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Employee Benefit Plans
Employer's contribution to the 401(k) Plan	$ 2.1	$ 2.3	$ 2.1

Defined Benefit Pension Obligation - Obligations and Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Pension Obligation
Actuarial loss	$ 500
Change in benefit obligation:
Actuarial loss	500
Defined benefit pension plan
Defined Benefit Pension Obligation
Actuarial loss	1,163	$ 1,007
Change in benefit obligation:
Benefit obligation - beginning of fiscal year	8,861	5,294
Service cost	1,903	980	$ 734
Interest cost	76	107	60
Plan participants' contributions	2,239	3,010
Plan amendment	(490)
Actuarial loss	1,163	1,007
Foreign currency changes	(347)	(210)
Benefit and expense payments	(970)	(1,327)
Benefit obligation - end of fiscal year	12,435	8,861	5,294
Change in plan assets:
Plan assets - beginning of fiscal year	7,184	4,357
Employer contributions	1,226	1,166
Actual return on plan assets	176	152
Plan participants' contributions	2,239	3,010
Foreign currency changes	(283)	(174)
Benefit and expense payments	(970)	(1,327)
Plan assets - end of fiscal year	9,572	7,184	$ 4,357
Funded status	$ (2,863)	$ (1,677)

Defined Benefit Pension Obligation - Amounts Recognized (Details) - Defined benefit pension plan - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Amounts recognized within consolidated balance sheets:
Long-term liabilities	$ 2,863	$ 1,677
Net amount recognized	2,863	1,677
Amounts recognized in accumulated other comprehensive loss (before tax)
Net loss	2,580	1,517
Prior service (credit) cost	(514)
Accumulated other comprehensive loss	2,066	1,517
Accumulated benefit obligations in excess of fair value of plan assets:
Projected benefit obligation	12,435	8,861
Accumulated benefit obligation	9,572	7,184
Fair value of plan assets	$ 9,572	$ 7,184

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, 2016	Jun. 30, 2015	Jun. 30, 2014
Net Periodic Benefit Costs:
Service cost	$ 1,903	$ 980	$ 734
Interest cost	76	107	60
Expected returns on assets	(102)	(92)	(61)
Amortization of net (gain) loss	53	3
Total	1,930	998	733
Other Amounts Recognized in Other Comprehensive Loss:
Net (gain) loss arising during the year	1,093	953	567
Prior service cost (credit)	(491)
Amortization of net (gain) loss	(53)	(3)
Total	549	$ 950	$ 567
Amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost during fiscal year 2017
Net loss	2,350
Prior service (credit) cost	(445)
Accumulated other comprehensive loss	$ 1,905

Defined Benefit Pension Obligation - Assumptions (Details) - Defined benefit pension plan	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Net Periodic Benefit Costs:
Discount rate (as a percent)	0.40%	0.90%	2.00%
Rate of compensation increase (as a percent)	2.00%	2.00%	2.00%
Expected long-term return on assets (as a percent)	1.40%	1.50%	2.00%
Benefit Obligation:
Discount rate (as a percent)	1.40%	1.50%	2.00%
Rate of compensation increase (as a percent)	2.00%	2.00%	2.00%

Defined Benefit Pension Obligation - Estimated Contributions and Future Benefit Payments (Details) - Defined benefit pension plan - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Estimated Contributions
Contributions to defined benefit pension plans	$ 1,226	$ 1,166
Expected total contributions to defined benefit pension plans for fiscal year 2017	1,300
Future Benefit Payments
2017	982
2018	910
2019	844
2020	802
2021	760
Thereafter	3,991
Total	$ 8,289

Defined Benefit Pension Obligation - Plan Assets (Details) - Defined benefit pension plan - BVG	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Plan Assets
Guaranteed interest rate for mandatory retirement savings (as a percent)		1.25%
Guaranteed interest rate for supplementary retirement savings (as a percent)		0.75%
Forecast
Plan Assets
Plan assets expected investment percentage	100.00%
Required capital percentage	100.00%

Segment Disclosure (Details) $ in Thousands	3 Months Ended								12 Months Ended
Segment Disclosure (Details) $ in Thousands	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2016 USD ($) item	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Segment Information
Number of operating segments \| item									1
Revenue	$ 94,973	$ 105,284	$ 108,912	$ 89,631	$ 101,750	$ 97,515	$ 98,155	$ 82,381	$ 398,800	$ 379,801	$ 369,419
Long lived tangible assets	27,878				31,829				27,878	31,829
Americas
Segment Information
Revenue									159,517	174,000	156,242
Long lived tangible assets	23,842				28,182				23,842	28,182
Europe, Middle East, India and Africa
Segment Information
Revenue									138,877	110,534	115,396
Long lived tangible assets	551				929				551	929
Asia (excluding Japan and India)
Segment Information
Revenue									62,888	57,618	44,533
Long lived tangible assets	1,342				455				1,342	455
Japan
Segment Information
Revenue									37,518	37,649	$ 53,248
Long lived tangible assets	$ 2,143				$ 2,263				$ 2,143	$ 2,263

Restructuring Charges (Details) - USD ($)	12 Months Ended
Restructuring Charges (Details) - USD ($)	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Restructuring and Severance Charges
Accrued restructuring charges	$ 2,500,000	$ 1,300,000
Employee severance
Restructuring and Severance Charges
Workforce affected by re-alignment (as a percent)	3.00%
Restructuring charges	$ 2,500,000	$ 1,400,000	$ 0

Quarterly Financial Data (unaudited) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Quarterly Financial Data (unaudited)
Net revenue	$ 94,973	$ 105,284	$ 108,912	$ 89,631	$ 101,750	$ 97,515	$ 98,155	$ 82,381	$ 398,800	$ 379,801	$ 369,419
Gross profit	37,300	44,944	42,571	33,898	40,452	38,660	38,489	27,801	158,713	145,402	142,800
Net income (loss)	$ (7,207)	$ 756	$ (6,027)	$ (13,026)	$ (5,600)	$ (2,967)	$ (9,992)	$ (21,650)	$ (25,504)	$ (40,209)	$ (35,448)
Net income (loss) per share-basic (in dollars per share)	$ (0.09)	$ 0.01	$ (0.08)	$ (0.16)
Net income (loss) per share-diluted (in dollars per share)	$ (0.09)	$ 0.01	$ (0.08)	$ (0.16)
Net loss per share-basic and diluted (in dollars per share)					$ (0.07)	$ (0.04)	$ (0.13)	$ (0.28)	$ (0.32)	$ (0.51)	$ (0.47)
Shares used in basic per share calculation (in shares)	81,081	80,860	80,346	79,760
Shares used in diluted per share calculation (in shares)	81,081	82,071	80,346	79,760
Shares used in basic and diluted per share calculation (in shares)					79,170	78,746	77,924	77,290	80,509	78,277	75,804

Subsequent Event (Details) - USD ($) $ in Thousands, shares in Millions		1 Months Ended	12 Months Ended
	Aug. 01, 2016	Jan. 31, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Aug. 01, 2011
Subsequent event
Debt instrument, accrued interest			$ 17,460	$ 16,518	$ 14,287
3.75% Convertible Notes
Subsequent event
Interest rate (as a percent)			3.75%	3.75%		3.75%
Debt instrument, principle amount						$ 100,000
Debt instrument, cash payment		$ 66,600
Potential dilution due to avoidance of common shares issuance (as a percent)			13.00%
Subsequent Event \| 3.75% Convertible Notes
Subsequent event
Interest rate (as a percent)	3.75%
Debt instrument, principle amount	$ 36,600
Debt instrument, accrued interest	700
Debt instrument, cash payment	$ 37,300
Number of new common equity shares avoided to issue	10.6