MACOM Technology Solutions (MTSI) 10-Q 30 Jul 20 2020 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Jul. 03, 2020	Jul. 27, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jul. 3, 2020
Document Transition Report	false
Entity File Number	001-35451
Entity Registrant Name	MACOM Technology Solutions Holdings, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-0306875
Entity Address, Address Line One	100 Chelmsford Street
Entity Address, City or Town	Lowell
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01851
City Area Code	978
Local Phone Number	656-2500
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	MTSI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		66,885,282
Entity Central Index Key	0001493594
Amendment Flag	false
Current Fiscal Year End Date	--10-02
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2020

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019	Jun. 28, 2019
Statement of Financial Position [Abstract]
Deferred Revenue, Current	$ 7,488	$ 2,137
Current assets:
Cash and cash equivalents	131,870	75,519	$ 85,265
Short-term investments	133,248	101,226
Accounts receivable (less allowances of $3,425 and $5,047, respectively)	60,504	69,790
Inventories	95,576	107,880
Income tax receivable	18,904	16,661
Prepaid and other current assets	10,166	27,506
Total current assets	450,268	398,582
Property and equipment, net	122,000	132,647
Goodwill	314,779	314,727
Intangible assets, net	143,317	181,228
Deferred income taxes	41,648	43,812
Other investments	9,975	23,613
Other long-term assets	39,140	10,965
TOTAL ASSETS	1,121,127	1,105,574
Finance lease liabilities	1,506	1,084
Current liabilities:
Current portion of long-term debt	6,885	6,885
Accounts payable	25,599	24,822
Accrued liabilities	53,539	39,908
Total current liabilities	95,017		74,836
Finance lease liabilities	29,351	29,506
Long-term debt, less current portion	652,947	655,272
Warrant liability	27,315	12,364
Deferred income taxes	2,085	632
Other long-term liabilities	41,108	19,068
Total liabilities	847,823	791,678
Stockholders’ equity:
Common stock	67	66
Treasury stock, at cost	(330)	(330)
Accumulated other comprehensive income	4,281	4,358
Additional paid-in capital	1,126,505	1,101,576
Accumulated deficit	(857,219)	(791,774)
Total stockholders’ equity	273,304	313,896	$ 298,995
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,121,127	$ 1,105,574

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 3,425	$ 5,047

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Income Statement [Abstract]
Revenue	$ 137,267	$ 108,306	$ 382,788	$ 387,460
Cost of revenue	66,391	74,478	190,338	219,678
Gross profit	70,876	33,828	192,450	167,782
Operating expenses:
Research and development	34,948	42,708	105,936	128,593
Selling, general and administrative	29,982	41,920	94,317	126,437
Restructuring (benefit) charges	(554)	8,887	1,494	17,047
Total operating expenses	64,376	357,601	201,747	536,163
Income (loss) from operations	6,500	(323,773)	(9,297)	(368,381)
Other expense:
Warrant liability (expense) gain	(19,511)	1,927	(14,951)	5,788
Interest expense, net	(5,849)	(8,967)	(22,142)	(27,142)
Other (expense) income, net	(4,372)	4,777	(12,464)	(4,233)
Total other expense, net	(29,732)	(2,263)	(49,557)	(25,587)
Loss before income taxes	(23,232)	(326,036)	(58,854)	(393,968)
Income tax expense (benefit)	1,750	(1,322)	4,716	346
Net loss	$ (24,982)	$ (324,714)	$ (63,570)	$ (394,314)
Net loss per share:
Loss per share - Basic	$ (0.37)	$ (4.93)	$ (0.96)	$ (6.01)
Loss per share - Diluted	$ (0.37)	$ (4.95)	$ (0.96)	$ (6.09)
Weighted average shares used:
Basic (in shares)	66,796	65,858	66,512	65,555
Diluted (in shares)	66,796	65,945	66,512	65,722
Impairment of Long-Lived Assets Held-for-use	$ 0	$ 264,086	$ 0	$ 264,086

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (24,982)	$ (324,714)	$ (63,570)	$ (394,314)
Unrealized gain on short term investments, net of tax	1,697	105	400	455
Foreign currency translation gain (loss), net of tax	458	996	(477)	2,256
Other comprehensive income (loss), net of tax	2,155	1,101	(77)	2,711
Total comprehensive loss	$ (22,827)	$ (323,613)	$ (63,647)	$ (391,603)

Condensed Consolidated Statem_3

Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	Accumulated Other Comprehensive Income	Additional Paid-in Capital	Accumulated Deficit
Treasury Stock, Shares			(23)
Balance at beginning of period, (in shares) at Sep. 28, 2018		65,202
Balance at beginning of period at Sep. 28, 2018	$ 668,675	$ 65	$ (330)	$ 2,188	$ 1,074,728	$ (407,976)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises (in shares)		23
Stock options exercises	46				46
Vesting of restricted common stock and units (in shares)		632
Vesting of restricted common stock and units	1	$ 1
Issuance of common stock pursuant to employee stock purchase plan (in shares)		421
Issuance of common stock pursuant to employee stock purchase plan	5,585				5,585
Shares repurchased for stock withholdings on restricted stock awards (in shares)		(223)
Shares repurchased for tax withholdings on equity awards	(3,872)				(3,872)
Share-based compensation	20,163				20,163
Other comprehensive loss, net of tax	2,711			2,711
Net loss	(394,314)					(394,314)
Balance at end of period, (in shares) at Jun. 28, 2019		66,055
Balance at end of period at Jun. 28, 2019	298,995	$ 66	$ (330)	4,899	1,096,650	(802,290)
Treasury Stock, Shares			(23)
Balance at beginning of period, (in shares) at Mar. 29, 2019		65,723
Balance at beginning of period at Mar. 29, 2019	617,025	$ 66	$ (330)	3,798	1,091,067	(477,576)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises (in shares)		11
Stock options exercises	22				22
Vesting of restricted common stock and units (in shares)		87
Vesting of restricted common stock and units	0	$ 0
Issuance of common stock pursuant to employee stock purchase plan (in shares)		265
Issuance of common stock pursuant to employee stock purchase plan	3,193				3,193
Shares repurchased for stock withholdings on restricted stock awards (in shares)		(31)
Shares repurchased for tax withholdings on equity awards	(446)				(446)
Share-based compensation	2,814				2,814
Other comprehensive loss, net of tax	1,101			1,101
Net loss	(324,714)					(324,714)
Balance at end of period, (in shares) at Jun. 28, 2019		66,055
Balance at end of period at Jun. 28, 2019	298,995	$ 66	$ (330)	4,899	1,096,650	(802,290)
Treasury Stock, Shares			(23)
Treasury Stock, Shares			(23)
Balance at beginning of period, (in shares) at Sep. 27, 2019		66,177
Balance at beginning of period at Sep. 27, 2019	$ 313,896	$ 66	$ (330)	4,358	1,101,576	(791,774)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises (in shares)	41	41
Stock options exercises	$ 168				168
Vesting of restricted common stock and units (in shares)		636
Vesting of restricted common stock and units	1	$ 1
Issuance of common stock pursuant to employee stock purchase plan (in shares)		272
Issuance of common stock pursuant to employee stock purchase plan	4,397				4,397
Shares repurchased for stock withholdings on restricted stock awards (in shares)		(223)
Shares repurchased for tax withholdings on equity awards	(6,557)				(6,557)
Share-based compensation	26,921				26,921
Other comprehensive loss, net of tax	(77)			(77)
Net loss	(63,570)					(63,570)
Balance at end of period, (in shares) at Jul. 03, 2020		66,903
Balance at end of period at Jul. 03, 2020	273,304	$ 67	$ (330)	4,281	1,126,505	(857,219)
Treasury Stock, Shares			(23)
Balance at beginning of period, (in shares) at Apr. 03, 2020		66,718
Balance at beginning of period at Apr. 03, 2020	285,731	$ 67	$ (330)	2,126	1,116,105	(832,237)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises (in shares)		23
Stock options exercises	46				46
Vesting of restricted common stock and units (in shares)		72
Vesting of restricted common stock and units	0	$ 0
Issuance of common stock pursuant to employee stock purchase plan (in shares)		112
Issuance of common stock pursuant to employee stock purchase plan	2,467				2,467
Shares repurchased for stock withholdings on restricted stock awards (in shares)		(22)
Shares repurchased for tax withholdings on equity awards	(608)				(608)
Share-based compensation	8,495				8,495
Other comprehensive loss, net of tax	2,155			2,155
Net loss	(24,982)					(24,982)
Balance at end of period, (in shares) at Jul. 03, 2020		66,903
Balance at end of period at Jul. 03, 2020	273,304	$ 67	$ (330)	$ 4,281	$ 1,126,505	(857,219)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	$ (1,875)					$ (1,875)
Treasury Stock, Shares			(23)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (63,570)	$ (394,314)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and intangibles amortization	59,751	84,612
Share-based compensation	26,921	20,163
Warrant liability loss (gain)	14,951	(5,788)
Deferred financing cost amortization	3,046	3,046
Deferred income taxes	3,581	59
Impairment and restructuring related charges	0	272,873
Loss on minority equity investment	13,637	3,937
Other adjustments, net	1,193	395
Change in operating assets and liabilities:
Accounts receivable	9,286	29,291
Inventories	12,304	12,298
Prepaid expenses and other assets	15,489	1,350
Accounts payable	1,058	(3,888)
Accrued and other liabilities	1,242	3,164
Income taxes	(1,895)	1,079
Net cash provided by operating activities	96,994	28,277
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(12,658)	(31,905)
Proceeds from sales and maturities of short-term investments	165,798	155,281
Purchases of short-term investments	(196,479)	(156,061)
Proceeds from divested business	366	0
Acquisition of businesses, net	0	(375)
Net cash used in investing activities	(31,970)	(33,060)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from stock option exercises and employee stock purchases	4,565	5,631
Payments on long-term debt	(5,163)	(5,163)
Payments on finance leases and other	(1,307)	(809)
Repurchase of common stock - tax withholdings on equity awards	(6,557)	(3,872)
Payments of contingent consideration and other	0	(579)
Net cash used in financing activities	(8,462)	(4,792)
Foreign currency effect on cash	(211)	164
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	56,351	(9,411)
CASH AND CASH EQUIVALENTS — Beginning of period	75,519	94,676
CASH AND CASH EQUIVALENTS — End of period	131,870	85,265
Supplemental disclosure of non-cash activities
Proceeds from Divestiture of Businesses	$ 11,003	$ 0

Short Term Investments

Short Term Investments	3 Months Ended
	Jun. 28, 2019
Investments, Debt and Equity Securities [Abstract]
Investments	INVESTMENTS Our short-term investments include corporate bonds and commercial paper and are classified as available-for-sale and are summarized in the tables below (in thousands): July 3, 2020 Amortized Gross Gross Aggregate Fair Corporate bonds $ 30,097 $ 354 $ (179) $ 30,272 Commercial paper 102,749 247 (20) 102,976 Total short-term investments $ 132,846 $ 601 $ (199) $ 133,248 September 27, 2019 Amortized Gross Gross Aggregate Fair Corporate bonds $ 29,578 $ 112 $ (93) $ 29,597 Commercial paper 71,646 1 (18) 71,629 Total short-term investments $ 101,224 $ 113 $ (111) $ 101,226 The contractual maturities of available-for-sale investments were as follows (in thousands): July 3, 2020 September 27, 2019 Less than 1 year $ 109,156 $ 75,233 Over 1 year 24,092 25,993 Total short-term investments $ 133,248 $ 101,226 Available-for-sale investments are reported at fair value and as such, their associated unrealized gains and losses are reported as a separate component of stockholders’ equity within accumulated other comprehensive income. Other Investments — As of July 3, 2020, we held two non-marketable equity investments classified as other long-term investments, which includes an investment in a Series B preferred stock ownership of a privately held manufacturing corporation with preferred liquidation rights over other equity shares. As the equity securities do not have a readily determinable fair value and do not qualify for the practical expedient under ASC 820, Fair Value Measurement, we have elected to account for this investment at cost less any impairment. As of July 3, 2020, the cost of this investment was $5.0 million. We evaluate this investment for impairment at each balance sheet date, and through July 3, 2020, no impairment has been recorded for this investment.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	9 Months Ended
	Jul. 03, 2020
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	SUPPLEMENTAL CASH FLOW INFORMATION As of July 3, 2020 and June 28, 2019, we had $0.5 million and $6.2 million, respectively, in unpaid amounts related to purchases of property and equipment included in accounts payable and accrued liabilities during each period. These amounts have been excluded from the payments for purchases of property and equipment in the accompanying condensed consolidated statements of cash flows until paid. During the nine months ended June 28, 2019, we capitalized $1.5 million of net construction costs, of which $0.3 million was accounted for as a non-cash transaction as the costs were paid by the developer. The following is supplemental cash flow information regarding non-cash investing and financing activities (in thousands): Nine Months Ended July 3, June 28, Cash paid for interest $ 20,035 $ 25,675 Cash paid (refunded) for income taxes $ 309 $ (1,713)

Short Term Investments_2

Short Term Investments	9 Months Ended
	Jul. 03, 2020
Investments, Debt and Equity Securities [Abstract]
Summary of Available for Sale Investments	Our short-term investments include corporate bonds and commercial paper and are classified as available-for-sale and are summarized in the tables below (in thousands): July 3, 2020 Amortized Gross Gross Aggregate Fair Corporate bonds $ 30,097 $ 354 $ (179) $ 30,272 Commercial paper 102,749 247 (20) 102,976 Total short-term investments $ 132,846 $ 601 $ (199) $ 133,248 September 27, 2019 Amortized Gross Gross Aggregate Fair Corporate bonds $ 29,578 $ 112 $ (93) $ 29,597 Commercial paper 71,646 1 (18) 71,629 Total short-term investments $ 101,224 $ 113 $ (111) $ 101,226
Summary of Contractual Maturities of Investments	The contractual maturities of available-for-sale investments were as follows (in thousands): July 3, 2020 September 27, 2019 Less than 1 year $ 109,156 $ 75,233 Over 1 year 24,092 25,993 Total short-term investments $ 133,248 $ 101,226

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information	9 Months Ended
	Jul. 03, 2020
Supplemental Cash Flow Elements [Abstract]
Schedule of Supplemental Cash Flow Information Regarding Non-cash Investing and Financing Activities	The following is supplemental cash flow information regarding non-cash investing and financing activities (in thousands): Nine Months Ended July 3, June 28, Cash paid for interest $ 20,035 $ 25,675 Cash paid (refunded) for income taxes $ 309 $ (1,713)

Investments - Summary of Availa

Investments - Summary of Available for Sale Investments - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 132,846	$ 101,224
Gross Unrealized Holding Gains	601	113
Gross Unrealized Holding Losses	(199)	(111)
Aggregate Fair Value	133,248	101,226
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	30,097	29,578
Gross Unrealized Holding Gains	354	112
Gross Unrealized Holding Losses	(179)	(93)
Aggregate Fair Value	30,272	29,597
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	102,749	71,646
Gross Unrealized Holding Gains	247	1
Gross Unrealized Holding Losses	(20)	(18)
Aggregate Fair Value	$ 102,976	$ 71,629

Investments - Summary of Contra

Investments - Summary of Contractual Maturities of Investments - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Investments, Debt and Equity Securities [Abstract]
Less than 1 year	$ 109,156	$ 75,233
Over 1 year	24,092	25,993
Total short-term investments	$ 133,248	$ 101,226

Share-Based Compensation - Effe

Share-Based Compensation - Effects of Stock-Based Compensation Expense Related to Stock-Based Awards to Employees and Non-Employees - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	$ 8,495	$ 2,815	$ 26,921	$ 20,163
Cost of Revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	814	651	2,771	2,165
Research and Development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	2,921	2,517	9,939	6,540
Selling, General and Administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	$ 4,760	$ (353)	$ 14,211	$ 11,458

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information - Additional Information - USD ($) $ in Thousands	9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from Equity Method Investments	$ (13,637)	$ (3,937)
Unpaid amounts related to purchase of assets	$ 500	6,200
Capitalized construction costs for finance leases		1,500
Developer Funded [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Capitalized construction costs for finance leases		$ 300

Supplemental Cash Flow Inform_4

Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information Regarding Non-cash Investing and Financing Activities - USD ($) $ in Thousands	9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019
Noncash or Part Noncash Acquisitions [Line Items]
Cash paid for interest	$ 20,035	$ 25,675
Cash paid (refunded) for income taxes	$ 309	(1,713)
Capitalized construction costs for finance leases		1,500
Developer Funded [Member]
Noncash or Part Noncash Acquisitions [Line Items]
Capitalized construction costs for finance leases		$ 300

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Jul. 03, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Unaudited Interim Financial Information —The accompanying unaudited, condensed consolidated financial statements have been prepared according to the rules and regulations of the United States (the “U.S.”) Securities and Exchange Commission (the “SEC”) and, in the opinion of management, reflect all adjustments, which include normal recurring adjustments, necessary for a fair statement of the condensed consolidated balance sheets, condensed consolidated statements of operations, comprehensive loss, stockholders' equity and cash flows of MACOM Technology Solutions Holdings, Inc. (“MACOM”, the “Company”, “us”, “we” or “our”) for the periods presented. We prepare our interim financial information using the same accounting principles we use for our annual audited consolidated financial statements. Certain information and note disclosures normally included in the annual audited consolidated financial statements have been condensed or omitted in accordance with prescribed SEC rules. We believe that the disclosures made in our condensed consolidated financial statements and the accompanying notes are adequate to make the information presented not misleading. The condensed consolidated balance sheet as of September 27, 2019 is as reported in our audited consolidated financial statements as of that date. Our accounting policies are described in the notes to our September 27, 2019 consolidated financial statements, which were included in our Annual Report on Form 10-K for our fiscal year ended September 27, 2019 filed with the SEC on November 26, 2019 (the “2019 Annual Report on Form 10-K”). We recommend that the financial statements included in this Quarterly Report on Form 10-Q be read in conjunction with the consolidated financial statements and notes included in our 2019 Annual Report on Form 10-K. Principles of Consolidation— The accompanying condensed consolidated financial statements include our accounts and the accounts of our majority-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. We have a 52- or 53-week fiscal year ending on the Friday closest to the last day of September. Fiscal year 2020 includes 53 weeks and fiscal year 2019 includes 52 weeks. To offset the effect of holidays, for fiscal years in which there are 53 weeks, we include the extra week arising in such fiscal years in the first quarter. Our first fiscal quarter ended January 3, 2020 included 14 weeks. Use of Estimates —The preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities during the reporting periods, the reported amounts of revenue and expenses during the reporting periods, and the disclosure of contingent assets and liabilities at the date of the financial statements. On an ongoing basis, we base estimates and assumptions on historical experience, currently available information and various other factors that management believes to be reasonable under the circumstances. Actual results may differ materially from these estimates and assumptions. Recent Accounting Pronouncements —Our Recent Accounting Pronouncements are described in the 2019 Annual Report on Form 10-K. Pronouncements Adopted in Fiscal Year 2020 On the first day of our fiscal year 2020, we adopted Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) (“ASC 842”), which requires lease arrangements be presented on the lessee’s balance sheet by recording a right-of-use (“ROU”) asset and a lease liability equal to the present value of related future minimum lease payments. We adopted the new lease guidance using the modified retrospective approach and the transition method available in accordance with ASU 2018-11, Leases (Topic 842): Targeted Improvements , which provides the option to use the effective date as the date of initial application of the guidance. As a result, the comparative information for prior periods has not been adjusted and continues to be reported in accordance with the accounting standards in effect for those periods under the previously applicable guidance. We elected the “practical expedients package of three” permitted under the transition guidance within ASC 842, which permitted us to carry forward our historical assessments of whether contracts contain leases, lease classification, and initial direct costs, for leases in existence prior to September 28, 2019. We evaluated our identified leases and applied the new lease guidance as discussed in Note 8 - Leases. At the effective date, the adoption of ASC 842 resulted in an increase to our total assets of approximately $37.1 million, an increase to our total liabilities of approximately $39.0 million and a decrease to our retained earnings of approximately $1.9 million primarily due to derecognition of financing obligations and associated assets established under ASC 840, Leases . We have operating leases for certain facilities as well as manufacturing and office equipment. Based on the present value of lease payments for the remaining lease term of our existing leases, we recognized $37.7 million and $43.6 million of both operating ROU assets and operating lease liabilities, respectively, on our condensed consolidated balance sheet upon adoption of ASC 842 on September 28, 2019. The difference between the ROU asset and liability represents deferred rent and lease incentives of approximately $5.9 million, recorded as a reduction to our gross ROU assets. We have finance leases for our corporate headquarters, including our fabrication facility, and to a lesser extent, various manufacturing equipment. Upon the adoption of ASC 842 on September 28, 2019, we derecognized the previous financed assets, recorded financing obligations for our corporate headquarters, and recorded finance lease assets and financing obligations for various manufacturing equipment. On September 28, 2019 we recognized a finance lease ROU asset and finance lease liability of $35.7 million and $31.8 million, respectively, on our condensed consolidated balance sheet. The difference between the ROU asset and liability represents net prepaid rent for our corporate headquarters, which is recorded as part of the finance lease ROU asset and is being amortized on a straight-line basis over the remaining lease term. The adoption of the new lease guidance did not have a material impact to the condensed consolidated statement of operations or cash flows, or earnings per share for the three and nine months ended July 3, 2020. Pronouncements for Adoption in Subsequent Periods In June 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . This ASU introduces a new accounting model known as Credit Expected Credit Losses (“CECL”), which requires earlier recognition of credit losses. The CECL model utilizes a lifetime expected credit loss measurement objective for the recognition of credit losses for receivables at the time the financial asset is originated or acquired, replacing the current incurred loss methodology that delays recognition of credit losses until a probable loss has been incurred. There are other provisions within the standard affecting how impairments of other financial assets may be recorded and presented, as well as expanded disclosures. We plan to adopt this standard on the first day of our fiscal year 2021, October 3, 2020. We are currently evaluating the impact of this standard, although we do not believe the adoption will have a material impact on our consolidated financial statements.

Revenue (Notes)

Revenue (Notes)	9 Months Ended
	Jul. 03, 2020
Revenue [Abstract]
Revenue from Contract with Customer [Text Block]	. REVENUE Disaggregation of Revenue We disaggregate revenue from contracts with customers by markets and geography, as we believe it best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. The following tables present our revenue disaggregated by markets and geography (in thousands): Three Months Ended Nine Months Ended July 3, 2020 June 28, 2019 July 3, 2020 June 28, 2019 Revenue by Market: Telecommunications $ 56,800 $ 43,883 $ 154,049 $ 141,379 Industrial & Defense 48,035 46,809 146,586 154,563 Data Center 32,432 17,614 82,153 91,518 Total $ 137,267 $ 108,306 $ 382,788 $ 387,460 Three Months Ended Nine Months Ended July 3, 2020 June 28, 2019 July 3, 2020 June 28, 2019 Revenue by Geographic Region: United States $ 53,633 $ 52,340 $ 163,964 $ 185,172 China 55,886 27,451 133,659 104,491 Asia Pacific, excluding China (1) 19,688 16,371 58,552 60,384 Other Countries (2) 8,060 12,144 26,613 37,413 Total $ 137,267 $ 108,306 $ 382,788 $ 387,460 (1) Asia Pacific represents Taiwan, Japan, Singapore, India, Thailand, South Korea, Australia, Malaysia, New Zealand and the Philippines. (2) No country or region represented greater than 10% of our total revenue as of the dates presented, other than the United States, China and Asia Pacific region as presented above. Contract Balances We record contract assets or contract liabilities depending on the timing of revenue recognition, billings and cash collections on a contract-by-contract basis. Our contract liabilities primarily relate to deferred revenue, including advanced consideration received from customers for contracts prior to the transfer of control to the customer, and therefore revenue is subsequently recognized upon delivery of products and services. The following table presents the changes in contract liabilities during the nine months ended July 3, 2020 (in thousands, except percentage): July 3, 2020 September 27, 2019 $ Change % Change Contract liabilities $ 11,003 $ 10,653 $ 350 3 % As of July 3, 2020 and September 27, 2019, approximately $3.5 million and $8.5 million of our contract liabilities, respectively, were recorded as other long-term liabilities on our balance sheet with the remainder recorded as deferred revenue. The increase in contract liabilities during the nine months ended July 3, 2020, as shown in the table above, was primarily from the deferral of revenue for funds received prior to when certain of our customers obtained control of the product or services. During the three and nine months ended July 3, 2020, we recognized net sales of $0.2 million and $0.4 million, respectively, that were included in the contract liabilities balance at the beginning of the period.

Inventories

Inventories	9 Months Ended
	Jul. 03, 2020
Inventory Disclosure [Abstract]
Inventories	INVENTORIES Inventories consist of the following (in thousands): July 3, September 27, Raw materials $ 53,936 $ 59,184 Work-in-process 11,427 13,799 Finished goods 30,213 34,897 Total inventory, net $ 95,576 $ 107,880

Property, Plant and Equipment

Property, Plant and Equipment	9 Months Ended
	Jul. 03, 2020
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	PROPERTY AND EQUIPMENT Property and equipment consists of the following (in thousands): July 3, September 27, Construction in process $ 14,643 $ 24,848 Machinery and equipment 192,835 175,696 Leasehold improvements 18,715 12,962 Furniture and fixtures 3,199 3,716 Computer equipment and software 18,421 18,116 Capital lease and financed assets — 46,496 Finance lease assets 36,112 — Total property and equipment 283,925 281,834 Less accumulated depreciation and amortization (161,925) (149,187) Property and equipment, net $ 122,000 $ 132,647 Depreciation and amortization expense related to property and equipment for the three and nine months ended July 3, 2020 was $7.1 million and $21.8 million, respectively. Depreciation and amortization expense related to property and equipment for the three and nine months ended June 28, 2019 was $7.3 million and $22.4 million, respectively. Accumulated amortization on finance lease assets as of July 3, 2020 was $2.2 million. Accumulated depreciation on capital leases as of September 27, 2019 was $5.3 million.

Debt

Debt	9 Months Ended
	Jul. 03, 2020
Debt Disclosure [Abstract]
Debt	DEBT As of July 3, 2020, we are party to a credit agreement dated as of May 8, 2014 with a syndicate of lenders and Goldman Sachs Bank USA (“Goldman Sachs”), as administrative agent (as amended on February 13, 2015, August 31, 2016, March 10, 2017, May 19, 2017, May 2, 2018 and May 9, 2018, the “Credit Agreement”). As of July 3, 2020, the Credit Agreement consisted of term loans with an initial aggregate principal amount of $700.0 million (the “Term Loans”) and a revolving credit facility with an aggregate borrowing capacity of $160.0 million (the “Revolving Facility”). The Revolving Facility will mature in November 2021 and the Term Loans will mature in May 2024 and bear interest at: (i) for LIBOR loans for any interest period, a rate per annum equal to the LIBOR rate as determined by the administrative agent, plus an applicable margin of 2.25%; and (ii) for base rate loans, a rate per annum equal to the greater of (a) the prime rate quoted in the print edition of the Wall Street Journal, Money Rates Section, (b) the federal funds rate plus one-half of 1.00% and (c) the LIBOR rate applicable to a one-month interest period plus 1.00% (but, in each case, not less than 1.00%), plus an applicable margin of 1.25%. All principal amounts outstanding and interest rate information as of July 3, 2020, for the Credit Agreement were as follows (in thousands, except rate data): Principal Outstanding LIBOR Rate Margin Effective Interest Rate Term loans $667,808 0.18% 2.25% 2.43% As of July 3, 2020, approximately $5.9 million of deferred financing costs remain unamortized, of which $5.5 million is related to the Term Loans and is recorded as a direct reduction of the recognized debt liabilities in our accompanying condensed consolidated balance sheet, and $0.4 million is related to the Revolving Facility and is recorded in other long-term assets in our accompanying condensed consolidated balance sheet. The Term Loans and Revolving Facility are secured by a first priority lien on substantially all of our assets and provide that we must comply with certain financial and non-financial covenants. The Term Loans are payable in quarterly principal installments of approximately $1.7 million on the last business day of each calendar quarter, with the remainder due on the maturity date. In the event that we divest a business, the net cash proceeds of the divestment are generally required, subject to certain exceptions, to be applied to repayment of outstanding Term Loans except to the extent we reinvest such proceeds in assets useful for our business within 18 months of receiving the proceeds. If we enter into a binding agreement to reinvest such proceeds within 18 months of receiving them, we have until the later of 18 months following our receipt of the proceeds and six months following the date of such agreement to complete the reinvestment. As of July 3, 2020, we had $160.0 million of borrowing capacity under our Revolving Facility, of which we may borrow up to $50 million without being subject to certain financial covenants. As of July 3, 2020, the following remained outstanding on the Term Loans (in thousands): July 3, 2020 Principal balance $ 667,808 Unamortized discount (2,507) Unamortized deferred financing costs (5,469) Total term loans 659,832 Current portion 6,885 Long-term, less current portion $ 652,947 As of July 3, 2020, the minimum principal payments under the Term Loans in future fiscal years were as follows (in thousands): Amount 2020 (remainder of fiscal year) $ 1,721 2021 6,885 2022 6,885 2023 6,885 2024 645,432 Total $ 667,808 The fair value of the Term Loans was estimated to be approximately $617.7 million as of July 3, 2020, and was determined using Level 2 inputs, including a quoted rate from a financial institution.

Leases Leases

Leases Leases	9 Months Ended
	Jul. 03, 2020
Leases [Abstract]
Leases	LEASES We have operating leases for certain facilities, as well as manufacturing and office equipment. We have financing leases for our corporate headquarters, including our fabrication facility, and to a lesser extent, various manufacturing equipment. These leases expire at various dates through 2038, and certain of these leases have renewal options with the longest ranging up to two ten We determine that a contract contains a lease at lease inception if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. In evaluating whether the right to control an identified asset exists, we assess whether we have the right to direct the use of the identified asset and obtain substantially all of the economic benefit from the use of the identified asset. Leases with a term greater than one year are recognized on the balance sheet as right-of-use assets and lease liabilities. For leases with a term of one year or less, categorized as short-term leases, we elected not to recognize the lease liability for these arrangements and the lease payments are recognized in the condensed consolidated statement of operations on a straight-line basis over the lease term. ROU assets and lease liabilities are recognized at the present value of future minimum lease payments over the lease term on the commencement date. ROU assets are initially measured as the amount of the initial lease liability, adjusted for initial direct costs, lease payments made at or before the commencement date, and reduced by lease incentives received. We include options to renew or terminate when determining the lease term when it is reasonably certain that the option will be exercised. Our lease agreements do not contain any material residual value guarantees or restrictive covenants. Our leases may contain lease and non-lease components. We elected to account for lease and non-lease components in a contract as part of a single lease component. Fixed payments are considered part of the single lease component and included in the ROU assets and lease liabilities. Additionally, lease contracts typically include variable payments and other costs that do not transfer a separate good or service, such as reimbursement for real estate taxes and insurance, which are expensed as incurred. Our leases generally do not provide an implicit interest rate. As a result, we utilize our incremental borrowing rates, which are the rates incurred to borrow on a collateralized basis over a similar term and amount equal to the lease payments in a similar economic environment. Included in our condensed consolidated balance sheets were the following amounts related to operating and finance lease assets and liabilities (in thousands): July 3, 2020 September 27, 2019 Consolidated Balance Sheet Classification Assets: Operating lease ROU assets $ 32,157 $ — Other long-term assets Finance lease assets 33,919 — Property and equipment, net Capital lease and financed assets — 40,442 Property and equipment, net Total lease assets $ 66,076 $ 40,442 Liabilities: Current: Operating lease liabilities $ 7,498 $ — Accrued liabilities Finance lease liabilities 1,506 — Current portion of finance lease obligations and other Capital lease and financing obligations — 1,084 Current portion of finance lease obligations and other Long-term: Operating lease liabilities 30,438 — Other long-term liabilities Finance lease liabilities 29,351 — Finance lease obligations and other, less current portion Capital lease and financing obligations — 29,506 Finance lease obligations and other, less current portion Total lease liabilities $ 68,793 $ 30,590 The weighted-average remaining lease terms and weighted-average discount rates for operating and finance leases as of July 3, 2020 were as follows: July 3, 2020 Weighted-average remaining lease term (in years): Operating leases 6.57 Finance leases 17.07 Weighted-average discount rate: Operating leases 6.36 % Finance leases 6.71 % The components of lease expense were as follows (in thousands): Three Months Ended Nine Months Ended July 3, 2020 Finance lease cost: Amortization of lease assets $ 747 $ 2,193 Interest on lease liabilities 525 1,641 Total finance lease cost $ 1,272 $ 3,834 Operating lease cost $ 2,451 $ 7,393 Variable lease cost $ 749 $ 1,937 Short-term lease cost $ 69 $ 339 Sublease income $ (117) $ (442) Cash paid for amounts included in the measurement of lease liabilities were as follows (in thousands): Nine Months Ended July 3, 2020 Cash paid for amounts included in measurement of lease liabilities: Operating cash flows from operating leases $ 7,027 Operating cash flows from finance leases $ 1,641 Financing cash flows from finance leases $ 1,307 Non-cash activities: Operating lease right-of-use assets obtained in exchange for new lease liabilities $ 242 Financing lease assets obtained in exchange for new lease liabilities $ 586 As of July 3, 2020, maturities of lease liabilities by fiscal year were as follows (in thousands): Fiscal year ending: Operating Leases Finance Leases 2020 (remainder of fiscal year) $ 2,527 $ 963 2021 9,250 3,394 2022 7,479 2,836 2023 6,012 2,820 2024 5,588 2,856 2025 3,650 2,783 Thereafter 12,284 37,150 Total lease payments 46,790 52,802 Less: interest 8,854 21,945 Present value of lease liabilities $ 37,936 $ 30,857 As of September 27, 2019, future minimum lease payments for our operating and capital leases were as follows as determined in accordance with the previous guidance under ASC 840, Leases and as previously disclosed in our 2019 Annual Report on Form 10-K (in thousands): Fiscal year ending: Operating Leases Capital Leases 2020 $ 9,987 $ 3,299 2021 9,233 3,343 2022 7,447 2,884 2023 6,061 2,816 2024 5,564 2,853 Thereafter 16,437 39,927 Total future minimum lease payments $ 54,729 55,122 Less amount representing interest (26,241) Present value of net minimum capital lease payments $ 28,881

Impairments

Impairments	9 Months Ended
	Jul. 03, 2020
Asset Impairment Charges [Abstract]
Impairments	IMPAIRMENTS During the fiscal quarter ended June 28, 2019, we initiated the 2019 Plan (as defined in Note 14 - Restructurings ) designed to strategically realign, streamline and improve our operations, including reducing our workforce and exiting certain product offerings and research and development facilities. We also committed to reducing certain development activities for one of our product lines. See Note 14 - Restructurings for additional information about the 2019 Plan. As a result of implementing the 2019 Plan, we reassessed our previous estimates for expected future revenue growth. We performed impairment analyses to determine whether our goodwill and long-lived assets, comprised of definite-lived intangible assets and property and equipment, were recoverable. Based on the estimated undiscounted cash flow assessment for long-lived assets, we determined that for an asset group, the cash flows were not sufficient to recover the carrying value of the long-lived assets over their remaining useful lives. Accordingly, we recorded impairment charges of $217.5 million and $33.2 million to our customer relationship intangible assets and acquired technology intangible assets, respectively, in the fiscal quarter ended June 28, 2019, based on the difference between the fair value and the carrying value of the long-lived assets. We will continue to monitor for events or changes in business circumstances that may indicate that the remaining carrying value of the asset group may not be recoverable. We used the income approach to determine the fair value of the definite-lived intangible assets and the cost approach to determine the fair value of its property and equipment. Additionally, in connection with the 2019 Plan, we determined that certain intangible assets would be abandoned and would not have a future benefit. Accordingly, we recorded impairment charges of $2.4 million and $3.9 million to our customer relationship intangible assets and acquired technology intangible assets, respectively, during the fiscal quarter ended June 28, 2019. During the fiscal quarter ended June 28, 2019, we also determined that an asset recorded as construction in process would not be able to be placed in service as a productive asset, and therefore had no fair value. Accordingly, we recorded an impairment charge of $7.1 million for this asset during the fiscal quarter ended June 28, 2019. See Note 14 - Restructurings for information related to property and equipment impaired as part of our restructuring actions.

Intangible Assets

Intangible Assets	9 Months Ended
	Jul. 03, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	INTANGIBLE ASSETS Amortization expense related to intangible assets is as follows (in thousands): Three Months Ended Nine Months Ended July 3, June 28, July 3, June 28, Cost of revenue $ 4,348 $ 8,139 $ 13,115 $ 24,074 Selling, general and administrative 8,071 13,723 24,797 38,115 Total $ 12,419 $ 21,862 $ 37,912 $ 62,189 Intangible assets consist of the following (in thousands): July 3, September 27, Acquired technology $ 179,434 $ 179,682 Customer relationships 245,870 245,870 Trade name (indefinite-lived) 3,400 3,400 Total 428,704 428,952 Less accumulated amortization (285,387) (247,724) Intangible assets — net $ 143,317 $ 181,228 A summary of the activity in gross intangible assets and goodwill is as follows (in thousands): Intangible Assets Total Intangible Assets Acquired Customer Trade Name Goodwill Balance at September 27, 2019 $ 428,952 $ 179,682 $ 245,870 $ 3,400 $ 314,727 Disposal of a fully amortized intangible asset (248) (248) — — — Currency translation adjustment — — — — 52 Balance at July 3, 2020 $ 428,704 $ 179,434 $ 245,870 $ 3,400 $ 314,779 As of July 3, 2020, our estimated amortization of our intangible assets in future fiscal years was as follows (in thousands): 2020 Remaining 2021 2022 2023 2024 Thereafter Total Amortization expense $ 12,418 46,213 33,433 26,048 15,410 6,395 $ 139,917 Accumulated amortization for acquired technology and customer relationships were $147.7 million and $137.7 million, respectively, as of July 3, 2020, and $134.8 million and $112.9 million, respectively, as of September 27, 2019.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Jul. 03, 2020
Equity [Abstract]
Stockholders' Equity	STOCKHOLDERS' EQUITY We have authorized 10 million shares of $0.001 par value preferred stock and 300 million shares of $0.001 par value common stock as of July 3, 2020. Common Stock Warrants —In March 2012, we issued warrants to purchase 1,281,358 shares of common stock for $14.05 per share. The warrants expire on December 21, 2020, or earlier as per the terms of the agreement, including immediately following consummation of a sale of all or substantially all assets or capital stock or other equity securities, including by merger, consolidation, recapitalization or similar transactions. We do not currently have sufficient registered and available shares to immediately satisfy a request for registration, if such a request were made. As of July 3, 2020, no exercise of the warrants had occurred, and no request had been made to register the warrants or any underlying securities for resale by the holders. We record the estimated fair values of the warrants as a long-term liability in the accompanying condensed consolidated financial statements with changes in the estimated fair value being recorded in the accompanying statements of operations. See Note 4 - Fair Value for additional information related to the fair value of our warrant liability. See Note 12 - Earnings (Loss) Per Share for impact of the common stock warrants on loss per share.

Earnings (Loss) Per Share

Earnings (Loss) Per Share	9 Months Ended
	Jul. 03, 2020
Earnings Per Share [Abstract]
Earnings (Loss) Per Share	12. EARNINGS (LOSS) PER SHARE The following table sets forth the computation for basic and diluted net loss per share of common stock (in thousands, except per share data): Three Months Ended Nine Months Ended July 3, 2020 June 28, 2019 July 3, 2020 June 28, 2019 Numerator: Net loss $ (24,982) $ (324,714) $ (63,570) $ (394,314) Warrant liability gain — (1,927) — (5,788) Net loss attributable to common stockholders $ (24,982) $ (326,641) $ (63,570) $ (400,102) Denominator: Weighted average common shares outstanding-basic 66,796 65,858 66,512 65,555 Dilutive effect of warrants — 87 — 166 Weighted average common shares outstanding-diluted 66,796 65,945 66,512 65,722 Net loss to common stockholders per share-Basic: $ (0.37) $ (4.93) $ (0.96) $ (6.01) Net loss to common stockholders per share-Diluted: $ (0.37) $ (4.95) $ (0.96) $ (6.09) As of July 3, 2020, we had warrants outstanding which were reported as a liability on the condensed consolidated balance sheet. During the three and nine months ended June 28, 2019, we recorded warrant liability gains of $1.9 million and $5.8 million, respectively, associated with adjusting the fair value of the warrants in the condensed consolidated statements of operations primarily as a result of changes in our stock price. When calculating earnings per share, we are required to adjust for the dilutive effect of outstanding common stock equivalents, including adjustment to the numerator for the dilutive effect of contracts that must be settled in stock. During the three and nine months ended June 28, 2019, we adjusted the numerator by the warrant gains of $1.9 million and $5.8 million, respectively, and the denominator by the incremental shares of 86,746 and 166,318, respectively, under the treasury stock method. The table above excludes the effects of 1,766,561 and 1,543,686 shares for the three and nine months ended July 3, 2020, respectively, and 80,046 and 129,599 shares for the three and nine months ended June 28, 2019, respectively, of potential shares of common stock issuable upon exercise of stock options, warrants, restricted stock and restricted stock units, as applicable, as the inclusion would be antidilutive.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Jul. 03, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIESFrom time to time, we may be subject to commercial disputes, employment issues, claims by other companies in the industry that we have infringed their intellectual property rights and other similar claims and litigation. Any such claims may lead to future litigation and material damages and defense costs. We were not involved in any material pending legal proceedings during the fiscal quarter ended July 3, 2020.

Restructurings

Restructurings	9 Months Ended
	Jul. 03, 2020
Restructuring and Related Activities [Abstract]
Restructurings	RESTRUCTURINGS We have periodically implemented restructuring actions in connection with broader plans to reduce staffing, reduce our internal manufacturing footprint and generally reduce operating costs. The restructuring expenses are primarily comprised of direct and incremental costs related to headcount reductions including severance and outplacement fees for the terminated employees, as well as facility closure costs. The following is a summary of the restructuring charges incurred under the plans noted below (in thousands): Three Months Ended Nine Months Ended July 3, June 28, July 3, June 28, Employee related expenses and adjustments $ (761) $ 5,135 $ 787 $ 6,742 Facility related expenses 207 3,752 707 10,305 Total restructuring (benefit) charges $ (554) $ 8,887 $ 1,494 $ 17,047 The following is a rollforward of the accrued restructuring liabilities for the nine months ended July 3, 2020 (in thousands): Employee-Related Expense (1) Facility-Related Expense (2) Total Balance at September 27, 2019 $ 1,549 $ 978 $ 2,527 Charges and adjustments 787 707 1,494 Charges paid/settled/other (1,460) (1,492) (2,952) Balance at July 3, 2020 $ 876 $ 193 $ 1,069 (1) Primarily includes severance charges associated with the reduction of our workforce in certain facilities. (2) Primarily includes activities associated with the closure of certain facilities, including any associated asset impairments and contract termination costs. Ithaca Plan During the fiscal quarter ended December 28, 2018, we commenced a plan to exit certain production and product lines, primarily related to certain production facilities located in Ithaca, New York (the “Ithaca Plan”). We incurred restructuring charges for the Ithaca Plan of $0.2 million in the three months ended June 28, 2019, including $0.1 million of employee-related costs, and $5.5 million in the nine months ended June 28, 2019, including $1.5 million of employee-related costs and $4.0 million of facility-related costs. This action was completed in fiscal year 2019 and no further costs will be incurred. The remaining charges were paid during the three months ended January 3, 2020. Details of the Ithaca Plan activities during the nine months ended July 3, 2020 are as follows (in thousands): Employee-Related Expense Facility-Related Expense Total Balance at September 27, 2019 $ 13 $ 70 $ 83 Charges and adjustments — (40) (40) Charges paid/settled (13) (30) (43) Balance at July 3, 2020 $ — $ — $ — Design Facilities Plan During the fiscal quarter ended March 29, 2019, we committed to a plan to exit certain design facilities and activities (the “Design Facilities Plan”). We recorded a net benefit of $0.3 million in the three months ended June 28, 2019, including $0.1 million of employee-related costs and $0.4 million of facility-related reimbursements. We incurred restructuring charges of $2.5 million for the nine months ended June 28, 2019, including $0.3 million of employee-related costs and $2.2 million primarily related to impairment of equipment. This action was completed in fiscal year 2019 and no further costs will be incurred. The remaining charges were paid during the three months ended July 3, 2020. Details of the Design Facilities Plan activities during the nine months ended July 3, 2020 are as follows (in thousands): Facility-Related Expense Balance at September 27, 2019 $ 451 Charges and adjustments (18) Charges paid/settled (433) Balance at July 3, 2020 $ — 2019 Plan During the fiscal quarter ended June 28, 2019, we committed to a plan designed to strategically realign, streamline and improve certain of our business and operations, including reducing our workforce by approximately 250 employees, exiting six development facilities in France, Japan, the Netherlands, Florida, Massachusetts and Rhode Island, reducing certain development activities for one of our product lines and no longer investing in the design and development of optical modules and subsystems for Data Center applications (the “2019 Plan”). We incurred a restructuring benefit of $0.6 million in the three months ended July 3, 2020 under the 2019 Plan, including a benefit of $0.8 million for employee-related costs and $0.2 million of other costs, and charges of $1.6 million in the nine months ended July 3, 2020, including $0.8 million of employee-related costs and $0.8 million of other costs. The restructuring net benefit for the three months ended July 3, 2020 includes an adjustment to accrued employee-related costs resulting from a decision during the fiscal third quarter to retain certain employees. We incurred restructuring charges of $9.0 million in the three months ended June 28, 2019 under the 2019 Plan, including $4.9 million of employee-related costs, $4.0 million of impairment expense for fixed assets that will be disposed of and $0.1 million of other costs. We expect to incur additional restructuring costs up to $0.2 million through fiscal year 2020 as we complete this restructuring action. Details of the 2019 Plan activities during the nine months ended July 3, 2020 are as follows (in thousands): Employee-Related Expense Facility-Related Expense Total Balance at September 27, 2019 $ 1,536 $ 457 $ 1,993 Charges and adjustments 787 765 1,552 Charges paid/settled/other (1,447) (1,029) (2,476) Balance at July 3, 2020 $ 876 $ 193 $ 1,069

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Jul. 03, 2020
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement	SHARE-BASED COMPENSATION Stock Plans As of July 3, 2020, we had 17.0 million shares available for issuance under our 2012 Omnibus Incentive Plan (as Amended and Restated) (the “2012 Plan”) and 3.6 million shares available for issuance under our Employee Stock Purchase Plan. Under the 2012 Plan, we have the ability to issue incentive stock options (“ISOs”), non-statutory stock options (“NSOs”), performance based non-statutory stock options, stock appreciation rights, restricted stock awards (“RSAs”), restricted stock units (“RSUs”), performance-based restricted stock units (“PRSUs”), performance shares and other equity-based awards to employees, directors and outside consultants. The ISOs and NSOs must be granted at a price per share not less than the fair value of our common stock on the date of grant. Options granted to date primarily vest based on certain market-based and performance-based criteria. Options granted generally have a term of four years to seven years. Certain of the share-based awards granted and outstanding as of July 3, 2020 are subject to accelerated vesting upon a change in control of the Company. Share-Based Compensation The following table shows a summary of share-based compensation expense included in the condensed consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended July 3, June 28, July 3, June 28, Cost of revenue $ 814 $ 651 $ 2,771 $ 2,165 Research and development 2,921 2,517 9,939 6,540 Selling, general and administrative 4,760 (353) 14,211 11,458 Total share-based compensation expense $ 8,495 $ 2,815 $ 26,921 $ 20,163 As of July 3, 2020, the total unrecognized compensation costs related to ISOs, RSAs and RSUs, including awards with time-based and performance-based vesting was $53.2 million, which we expect to recognize over a weighted-average period of 2.2 years. As of July 3, 2020, total unrecognized compensation cost related to our Employee Stock Purchase Plan was $0.8 million. Stock Options A summary of stock option activity for the nine months ended July 3, 2020 is as follows (in thousands, except per share amounts and contractual term): Number of Shares Weighted-Average Exercise Price per Share Weighted-Average Remaining Contractual Term (in Years) Aggregate Intrinsic Value Options outstanding as of September 27, 2019 376 $ 13.58 Exercised (41) 4.12 Forfeited, canceled or expired — 19.45 Options outstanding as of July 3, 2020 335 $ 14.73 7.03 $ 6,834 Options vested & expected to vest as of July 3, 2020 335 14.73 7.03 6,834 Options exercisable as of July 3, 2020 50 $ 14.40 3.07 $ 1,037 Aggregate intrinsic value represents the difference between our closing stock price on July 3, 2020 and the exercise price of outstanding, in-the-money options. The total intrinsic value of options exercised was $0.7 million and $1.0 million for the three and nine months ended July 3, 2020, respectively, and $0.1 million and $0.3 million for the three and nine months ended June 28, 2019, respectively. Restricted Stock, Restricted Stock Units and Performance-Based Restricted Stock Units A summary of RSAs, RSUs and PRSUs activity for the nine months ended July 3, 2020 is as follows: Number of RSAs, RSUs and PRSUs Weighted- Aggregate Balance as of September 27, 2019 2,613 $ 21.81 $ 56,649 Granted 1,203 21.96 Vested and released (636) 26.05 Forfeited, canceled or expired (364) 22.19 Balance as of July 3, 2020 2,816 $ 20.86 $ 98,909 RSAs, RSUs and PRSUs that vested during the nine months ended July 3, 2020 and June 28, 2019 had combined fair values of $18.7 million and $10.9 million, respectively, as of the vesting date.

Income Taxes

Income Taxes	9 Months Ended
	Jul. 03, 2020
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES We are subject to income tax in the U.S. as well as other tax jurisdictions in which we conduct business. Earnings from non-U.S. activities are subject to local country income tax and may also be subject to current U.S. income tax. For interim periods, we record a tax provision or benefit based upon the estimated effective tax rate expected for the full fiscal year, adjusted for material discrete taxation matters arising during the interim periods. Our quarterly tax provision or benefit, and its quarterly estimate of the annual effective tax rate, are subject to significant variation due to several factors. These factors include variability in accurately predicting pre-tax income/loss, the mix of jurisdictions in which we operate, intercompany transactions, changes in how we do business, tax law developments, and relative changes in permanent tax benefits or expenses. The provision (benefit) for income taxes and effective income tax rate for the three and nine months ended July 3, 2020 and June 28, 2019 are as follows (in thousands, except percentages): Three Months Ended Nine Months Ended July 3, June 28, July 3, June 28, Income tax expense (benefit) $ 1,750 $ (1,322) $ 4,716 $ 346 Effective income tax rate (7.5) % 0.4 % (8.0) % (0.1) % The difference between the U.S. federal statutory income tax rate of 21% and our effective tax rates for the three and nine months ended July 3, 2020 and June 28, 2019 was primarily driven by the continuation of a full valuation allowance against any benefit associated with U.S. losses and income taxed in foreign jurisdictions at generally lower tax rates and where we are not in a valuation allowance since it is expected that we will be in a taxable income position. We recognize deferred tax assets to the extent that we believe that these assets are more likely than not to be realized. In making this determination, we consider available evidence, both positive and negative. We look at factors that may impact the valuation of our deferred tax asset including results of recent operations, future reversals of existing taxable temporary differences, projected future taxable income, and tax-planning strategies. We have significant negative objective evidence in the form of adjusted cumulative losses in the U.S. over the three-year period ended July 3, 2020 that resulted in our continued determination that there was not sufficient objectively verifiable positive evidence to offset this negative objective evidence and we concluded that a full valuation allowance was still appropriate for our U.S. deferred tax assets. Our deferred income tax asset balance as of July 3, 2020 and September 27, 2019 is primarily attributable to an initial $39.8 million deferred asset generated from an intra-entity transfer of a license for intellectual property during the fiscal quarter ended September 27, 2019. We expect this deferred tax asset to amortize over the life of the intellectual property. The balance of the unrecognized tax benefits remained at $0.3 million as of July 3, 2020 when compared to the balance as of September 27, 2019. It is our policy to recognize any interest and penalties accrued related to unrecognized tax benefits in income tax expense. During the fiscal quarter ended July 3, 2020, we did not make any accrual or payment of interest and penalties due to our net operating loss carryforward position within the U.S., which would offset any adjustment. On December 22, 2017, the U.S. Congress enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). The Tax Act enacted a wide range of changes to the U.S. corporate income tax system, many of which differ significantly from the provisions of the previous U.S. tax law. The Tax Act also transitions international taxation from a worldwide system with deferral to a modified territorial system and includes base erosion prevention measures on non-U.S. earnings, which has the effect of subjecting certain earnings of our foreign subsidiaries to U.S. taxation as global intangible low-taxed income. These changes became effective in our fiscal year beginning September 29, 2018.

Geographic and Significant Cust

Geographic and Significant Customer Information	9 Months Ended
	Jul. 03, 2020
Segment Reporting [Abstract]
Geographic and Significant Customer Information	GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATIONWe have one reportable operating segment that designs, develops, manufactures and markets semiconductors and modules. The determination of the number of reportable operating segments is based on the chief operating decision maker’s use of financial information for the purposes of assessing performance and making operating decisions. In evaluating financial performance and making operating decisions, the chief operating decision maker primarily uses consolidated metrics. We evaluate this assessment on an ongoing basis as facts and circumstances change and as of July 3, 2020 there were no changes to our conclusion. For information about our revenue in different geographic regions, based upon customer locations, see Note 2 - Revenue . Information about net property and equipment in different geographic regions is presented below (in thousands): July 3, September 27, United States $ 103,389 $ 116,037 Other Countries (1) 18,611 16,610 Total $ 122,000 $ 132,647 (1) Other than the United States, no country or region represented greater than 10% of the total net property and equipment as of the dates presented. The following is a summary of customer concentrations as a percentage of revenue and accounts receivable as of and for the periods presented: Three Months Ended Nine Months Ended Revenue July 3, June 28, July 3, June 28, Customer A 13 % 17 % 14% 15 % Customer B 14 % — 11% — Customer C 14 % — 10% — Accounts Receivable July 3, September 27, Customer A 18 % 24 % Customer C 12 % 8 % Customer D 11 % 10 % Customers B and C did not represent more than 10% of revenue in the three and nine months ended June 28, 2019. No other customer represented more than 10% of revenue or accounts receivable in the periods presented in the accompanying condensed consolidated financial statements. For the three and nine months ended July 3, 2020 our top ten customers represented 66% and 61%, respectively, of total revenue, and for the three and nine months ended June 28, 2019, our top ten customers represented 54% and 54%, respectively, of total revenue.

Related-Party Transactions (Not

Related-Party Transactions (Notes)	9 Months Ended
	Jul. 03, 2020
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	19. RELATED-PARTY TRANSACTIONSDuring the nine months ended July 3, 2020, we sold $0.2 million of commercial products to Mission Microwave Technologies, LLC ("Mission"), a MACOM customer and an affiliate of directors John and Susan Ocampo. Together, Mr. and Mrs. Ocampo are MACOM's largest stockholders.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Jul. 03, 2020
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation— The accompanying condensed consolidated financial statements include our accounts and the accounts of our majority-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.
Fiscal Period, Policy [Policy Text Block]	We have a 52- or 53-week fiscal year ending on the Friday closest to the last day of September. Fiscal year 2020 includes 53 weeks and fiscal year 2019 includes 52 weeks. To offset the effect of holidays, for fiscal years in which there are 53 weeks, we include the extra week arising in such fiscal years in the first quarter. Our first fiscal quarter ended January 3, 2020 included 14 weeks.
Use of Estimates	Use of Estimates —The preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities during the reporting periods, the reported amounts of revenue and expenses during the reporting periods, and the disclosure of contingent assets and liabilities at the date of the financial statements. On an ongoing basis, we base estimates and assumptions on historical experience, currently available information and various other factors that management believes to be reasonable under the circumstances. Actual results may differ materially from these estimates and assumptions.
Recent Accounting Pronouncements	Recent Accounting Pronouncements —Our Recent Accounting Pronouncements are described in the 2019 Annual Report on Form 10-K. Pronouncements Adopted in Fiscal Year 2020 On the first day of our fiscal year 2020, we adopted Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) (“ASC 842”), which requires lease arrangements be presented on the lessee’s balance sheet by recording a right-of-use (“ROU”) asset and a lease liability equal to the present value of related future minimum lease payments. We adopted the new lease guidance using the modified retrospective approach and the transition method available in accordance with ASU 2018-11, Leases (Topic 842): Targeted Improvements , which provides the option to use the effective date as the date of initial application of the guidance. As a result, the comparative information for prior periods has not been adjusted and continues to be reported in accordance with the accounting standards in effect for those periods under the previously applicable guidance. We elected the “practical expedients package of three” permitted under the transition guidance within ASC 842, which permitted us to carry forward our historical assessments of whether contracts contain leases, lease classification, and initial direct costs, for leases in existence prior to September 28, 2019. We evaluated our identified leases and applied the new lease guidance as discussed in Note 8 - Leases. At the effective date, the adoption of ASC 842 resulted in an increase to our total assets of approximately $37.1 million, an increase to our total liabilities of approximately $39.0 million and a decrease to our retained earnings of approximately $1.9 million primarily due to derecognition of financing obligations and associated assets established under ASC 840, Leases . We have operating leases for certain facilities as well as manufacturing and office equipment. Based on the present value of lease payments for the remaining lease term of our existing leases, we recognized $37.7 million and $43.6 million of both operating ROU assets and operating lease liabilities, respectively, on our condensed consolidated balance sheet upon adoption of ASC 842 on September 28, 2019. The difference between the ROU asset and liability represents deferred rent and lease incentives of approximately $5.9 million, recorded as a reduction to our gross ROU assets. We have finance leases for our corporate headquarters, including our fabrication facility, and to a lesser extent, various manufacturing equipment. Upon the adoption of ASC 842 on September 28, 2019, we derecognized the previous financed assets, recorded financing obligations for our corporate headquarters, and recorded finance lease assets and financing obligations for various manufacturing equipment. On September 28, 2019 we recognized a finance lease ROU asset and finance lease liability of $35.7 million and $31.8 million, respectively, on our condensed consolidated balance sheet. The difference between the ROU asset and liability represents net prepaid rent for our corporate headquarters, which is recorded as part of the finance lease ROU asset and is being amortized on a straight-line basis over the remaining lease term. The adoption of the new lease guidance did not have a material impact to the condensed consolidated statement of operations or cash flows, or earnings per share for the three and nine months ended July 3, 2020. Pronouncements for Adoption in Subsequent Periods In June 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . This ASU introduces a new accounting model known as Credit Expected Credit Losses (“CECL”), which requires earlier recognition of credit losses. The CECL model utilizes a lifetime expected credit loss measurement objective for the recognition of credit losses for receivables at the time the financial asset is originated or acquired, replacing the current incurred loss methodology that delays recognition of credit losses until a probable loss has been incurred. There are other provisions within the standard affecting how impairments of other financial assets may be recorded and presented, as well as expanded disclosures. We plan to adopt this standard on the first day of our fiscal year 2021, October 3, 2020. We are currently evaluating the impact of this standard, although we do not believe the adoption will have a material impact on our consolidated financial statements.

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Jul. 03, 2020
Revenue [Abstract]
Disaggregation of Revenue	The following tables present our revenue disaggregated by markets and geography (in thousands): Three Months Ended Nine Months Ended July 3, 2020 June 28, 2019 July 3, 2020 June 28, 2019 Revenue by Market: Telecommunications $ 56,800 $ 43,883 $ 154,049 $ 141,379 Industrial & Defense 48,035 46,809 146,586 154,563 Data Center 32,432 17,614 82,153 91,518 Total $ 137,267 $ 108,306 $ 382,788 $ 387,460 Three Months Ended Nine Months Ended July 3, 2020 June 28, 2019 July 3, 2020 June 28, 2019 Revenue by Geographic Region: United States $ 53,633 $ 52,340 $ 163,964 $ 185,172 China 55,886 27,451 133,659 104,491 Asia Pacific, excluding China (1) 19,688 16,371 58,552 60,384 Other Countries (2) 8,060 12,144 26,613 37,413 Total $ 137,267 $ 108,306 $ 382,788 $ 387,460 (1) Asia Pacific represents Taiwan, Japan, Singapore, India, Thailand, South Korea, Australia, Malaysia, New Zealand and the Philippines. (2) No country or region represented greater than 10% of our total revenue as of the dates presented, other than the United States, China and Asia Pacific region as presented above.
Contract with Customer, Asset and Liability	The following table presents the changes in contract liabilities during the nine months ended July 3, 2020 (in thousands, except percentage): July 3, 2020 September 27, 2019 $ Change % Change Contract liabilities $ 11,003 $ 10,653 $ 350 3 %

Fair Value (Tables)

Fair Value (Tables)	9 Months Ended
	Jul. 03, 2020
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis consist of the following (in thousands): July 3, 2020 Fair Value Active Markets for Identical Assets (Level 1) Observable Inputs (Level 2) Unobservable Inputs (Level 3) Assets Money market funds $ 10,375 $ 10,375 $ — $ — Commercial paper 102,976 — 102,976 — Corporate bonds 30,272 — 30,272 — Total assets measured at fair value $ 143,623 $ 10,375 $ 133,248 $ — Liabilities Common stock warrant liability $ 27,315 $ — $ — $ 27,315 Total liabilities measured at fair value $ 27,315 $ — $ — $ 27,315 September 27, 2019 Fair Value Active Markets for Identical Assets (Level 1) Observable Inputs (Level 2) Unobservable Inputs (Level 3) Assets Money market funds $ 261 $ 261 $ — $ — Commercial paper 71,629 — 71,629 — Corporate bonds 29,597 — 29,597 — Total assets measured at fair value $ 101,487 $ 261 $ 101,226 $ — Liabilities Common stock warrant liability $ 12,364 $ — $ — $ 12,364 Total liabilities measured at fair value $ 12,364 $ — $ — $ 12,364
Quantitative information Used in Fair Value Calculation of Level 3 Liabilities	The quantitative information utilized in the fair value calculation of our Level 3 liabilities is as follows: Inputs Liabilities Valuation Technique Unobservable Input July 3, 2020 September 27, 2019 Warrant liability Black-Scholes model Volatility 79.8% 61.4% Discount rate 0.14% 1.71% Expected life 0.5 years 1.2 years Exercise price $14.05 $14.05 Stock price $35.13 $21.68 Dividend rate —% —%
Changes in Liabilities with Inputs Classified within Level 3 of Fair Value	The changes in liabilities with inputs classified within Level 3 of the fair value hierarchy consist of the following (in thousands): September 27, Net Realized/Unrealized Losses Included in Earnings Purchases Sales and July 3, Common stock warrant liability $ 12,364 $ 14,951 $ — $ — $ 27,315 September 28, Net Realized/Unrealized Losses (Gains) Included in Earnings Purchases Sales and June 28, Contingent consideration $ 585 $ 65 $ — $ (650) $ — Common stock warrant liability $ 13,129 $ (5,788) $ — $ — $ 7,341

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Jul. 03, 2020
Inventory Disclosure [Abstract]
Components of Inventories	Inventories consist of the following (in thousands): July 3, September 27, Raw materials $ 53,936 $ 59,184 Work-in-process 11,427 13,799 Finished goods 30,213 34,897 Total inventory, net $ 95,576 $ 107,880

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	9 Months Ended
	Jul. 03, 2020
Property, Plant and Equipment [Abstract]
Components of Property, Plant and Equipment	Property and equipment consists of the following (in thousands): July 3, September 27, Construction in process $ 14,643 $ 24,848 Machinery and equipment 192,835 175,696 Leasehold improvements 18,715 12,962 Furniture and fixtures 3,199 3,716 Computer equipment and software 18,421 18,116 Capital lease and financed assets — 46,496 Finance lease assets 36,112 — Total property and equipment 283,925 281,834 Less accumulated depreciation and amortization (161,925) (149,187) Property and equipment, net $ 122,000 $ 132,647

Debt (Tables)

Debt (Tables)	9 Months Ended
	Jul. 03, 2020
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table Text Block]	All principal amounts outstanding and interest rate information as of July 3, 2020, for the Credit Agreement were as follows (in thousands, except rate data): Principal Outstanding LIBOR Rate Margin Effective Interest Rate Term loans $667,808 0.18% 2.25% 2.43%
Schedule of Remained Outstanding on Term Loans	As of July 3, 2020, the following remained outstanding on the Term Loans (in thousands): July 3, 2020 Principal balance $ 667,808 Unamortized discount (2,507) Unamortized deferred financing costs (5,469) Total term loans 659,832 Current portion 6,885 Long-term, less current portion $ 652,947
Schedule of Minimum Principal Payments under Term Loans	As of July 3, 2020, the minimum principal payments under the Term Loans in future fiscal years were as follows (in thousands): Amount 2020 (remainder of fiscal year) $ 1,721 2021 6,885 2022 6,885 2023 6,885 2024 645,432 Total $ 667,808

Leases (Tables)

Leases (Tables)	9 Months Ended
	Jul. 03, 2020
Leases [Abstract]
Assets and Liabilities of Lessee	Included in our condensed consolidated balance sheets were the following amounts related to operating and finance lease assets and liabilities (in thousands): July 3, 2020 September 27, 2019 Consolidated Balance Sheet Classification Assets: Operating lease ROU assets $ 32,157 $ — Other long-term assets Finance lease assets 33,919 — Property and equipment, net Capital lease and financed assets — 40,442 Property and equipment, net Total lease assets $ 66,076 $ 40,442 Liabilities: Current: Operating lease liabilities $ 7,498 $ — Accrued liabilities Finance lease liabilities 1,506 — Current portion of finance lease obligations and other Capital lease and financing obligations — 1,084 Current portion of finance lease obligations and other Long-term: Operating lease liabilities 30,438 — Other long-term liabilities Finance lease liabilities 29,351 — Finance lease obligations and other, less current portion Capital lease and financing obligations — 29,506 Finance lease obligations and other, less current portion Total lease liabilities $ 68,793 $ 30,590 The weighted-average remaining lease terms and weighted-average discount rates for operating and finance leases as of July 3, 2020 were as follows: July 3, 2020 Weighted-average remaining lease term (in years): Operating leases 6.57 Finance leases 17.07 Weighted-average discount rate: Operating leases 6.36 % Finance leases 6.71 %
Lease, Cost	The components of lease expense were as follows (in thousands): Three Months Ended Nine Months Ended July 3, 2020 Finance lease cost: Amortization of lease assets $ 747 $ 2,193 Interest on lease liabilities 525 1,641 Total finance lease cost $ 1,272 $ 3,834 Operating lease cost $ 2,451 $ 7,393 Variable lease cost $ 749 $ 1,937 Short-term lease cost $ 69 $ 339 Sublease income $ (117) $ (442) Cash paid for amounts included in the measurement of lease liabilities were as follows (in thousands): Nine Months Ended July 3, 2020 Cash paid for amounts included in measurement of lease liabilities: Operating cash flows from operating leases $ 7,027 Operating cash flows from finance leases $ 1,641 Financing cash flows from finance leases $ 1,307 Non-cash activities: Operating lease right-of-use assets obtained in exchange for new lease liabilities $ 242 Financing lease assets obtained in exchange for new lease liabilities $ 586 As of July 3, 2020, maturities of lease liabilities by fiscal year were as follows (in thousands): Fiscal year ending: Operating Leases Finance Leases 2020 (remainder of fiscal year) $ 2,527 $ 963 2021 9,250 3,394 2022 7,479 2,836 2023 6,012 2,820 2024 5,588 2,856 2025 3,650 2,783 Thereafter 12,284 37,150 Total lease payments 46,790 52,802 Less: interest 8,854 21,945 Present value of lease liabilities $ 37,936 $ 30,857
Schedule of Future Minimum Lease Payments for Operating and Capital Leases	As of September 27, 2019, future minimum lease payments for our operating and capital leases were as follows as determined in accordance with the previous guidance under ASC 840, Leases and as previously disclosed in our 2019 Annual Report on Form 10-K (in thousands): Fiscal year ending: Operating Leases Capital Leases 2020 $ 9,987 $ 3,299 2021 9,233 3,343 2022 7,447 2,884 2023 6,061 2,816 2024 5,564 2,853 Thereafter 16,437 39,927 Total future minimum lease payments $ 54,729 55,122 Less amount representing interest (26,241) Present value of net minimum capital lease payments $ 28,881

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
	Jul. 03, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Amortization Expense of Intangible Assets	Amortization expense related to intangible assets is as follows (in thousands): Three Months Ended Nine Months Ended July 3, June 28, July 3, June 28, Cost of revenue $ 4,348 $ 8,139 $ 13,115 $ 24,074 Selling, general and administrative 8,071 13,723 24,797 38,115 Total $ 12,419 $ 21,862 $ 37,912 $ 62,189
Summary of Intangible Assets	Intangible assets consist of the following (in thousands): July 3, September 27, Acquired technology $ 179,434 $ 179,682 Customer relationships 245,870 245,870 Trade name (indefinite-lived) 3,400 3,400 Total 428,704 428,952 Less accumulated amortization (285,387) (247,724) Intangible assets — net $ 143,317 $ 181,228
Summary of Activity in Intangible Assets and Goodwill	A summary of the activity in gross intangible assets and goodwill is as follows (in thousands): Intangible Assets Total Intangible Assets Acquired Customer Trade Name Goodwill Balance at September 27, 2019 $ 428,952 $ 179,682 $ 245,870 $ 3,400 $ 314,727 Disposal of a fully amortized intangible asset (248) (248) — — — Currency translation adjustment — — — — 52 Balance at July 3, 2020 $ 428,704 $ 179,434 $ 245,870 $ 3,400 $ 314,779
Summary of Estimated Amortization of Intangible Assets in Future Fiscal Years	As of July 3, 2020, our estimated amortization of our intangible assets in future fiscal years was as follows (in thousands): 2020 Remaining 2021 2022 2023 2024 Thereafter Total Amortization expense $ 12,418 46,213 33,433 26,048 15,410 6,395 $ 139,917

Earnings (Loss) Per Share (Tabl

Earnings (Loss) Per Share (Tables)	9 Months Ended
	Jul. 03, 2020
Earnings Per Share [Abstract]
Computation for Basic and Diluted Net Loss Per Share of Common Stock	The following table sets forth the computation for basic and diluted net loss per share of common stock (in thousands, except per share data): Three Months Ended Nine Months Ended July 3, 2020 June 28, 2019 July 3, 2020 June 28, 2019 Numerator: Net loss $ (24,982) $ (324,714) $ (63,570) $ (394,314) Warrant liability gain — (1,927) — (5,788) Net loss attributable to common stockholders $ (24,982) $ (326,641) $ (63,570) $ (400,102) Denominator: Weighted average common shares outstanding-basic 66,796 65,858 66,512 65,555 Dilutive effect of warrants — 87 — 166 Weighted average common shares outstanding-diluted 66,796 65,945 66,512 65,722 Net loss to common stockholders per share-Basic: $ (0.37) $ (4.93) $ (0.96) $ (6.01) Net loss to common stockholders per share-Diluted: $ (0.37) $ (4.95) $ (0.96) $ (6.09)

Restructurings - (Tables)

Restructurings - (Tables)	9 Months Ended
	Jul. 03, 2020
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs	The following is a summary of the restructuring charges incurred under the plans noted below (in thousands): Three Months Ended Nine Months Ended July 3, June 28, July 3, June 28, Employee related expenses and adjustments $ (761) $ 5,135 $ 787 $ 6,742 Facility related expenses 207 3,752 707 10,305 Total restructuring (benefit) charges $ (554) $ 8,887 $ 1,494 $ 17,047
Schedule of Restructuring Reserve by Type of Cost	The following is a rollforward of the accrued restructuring liabilities for the nine months ended July 3, 2020 (in thousands): Employee-Related Expense (1) Facility-Related Expense (2) Total Balance at September 27, 2019 $ 1,549 $ 978 $ 2,527 Charges and adjustments 787 707 1,494 Charges paid/settled/other (1,460) (1,492) (2,952) Balance at July 3, 2020 $ 876 $ 193 $ 1,069 Employee-Related Expense Facility-Related Expense Total Balance at September 27, 2019 $ 1,536 $ 457 $ 1,993 Charges and adjustments 787 765 1,552 Charges paid/settled/other (1,447) (1,029) (2,476) Balance at July 3, 2020 $ 876 $ 193 $ 1,069

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Jul. 03, 2020
Share-based Payment Arrangement [Abstract]
Effects of Stock-Based Compensation Expense Related to Stock-Based Awards to Employees and Nonemployees	The following table shows a summary of share-based compensation expense included in the condensed consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended July 3, June 28, July 3, June 28, Cost of revenue $ 814 $ 651 $ 2,771 $ 2,165 Research and development 2,921 2,517 9,939 6,540 Selling, general and administrative 4,760 (353) 14,211 11,458 Total share-based compensation expense $ 8,495 $ 2,815 $ 26,921 $ 20,163
Share-based Payment Arrangement, Option, Activity [Table Text Block]	A summary of stock option activity for the nine months ended July 3, 2020 is as follows (in thousands, except per share amounts and contractual term): Number of Shares Weighted-Average Exercise Price per Share Weighted-Average Remaining Contractual Term (in Years) Aggregate Intrinsic Value Options outstanding as of September 27, 2019 376 $ 13.58 Exercised (41) 4.12 Forfeited, canceled or expired — 19.45 Options outstanding as of July 3, 2020 335 $ 14.73 7.03 $ 6,834 Options vested & expected to vest as of July 3, 2020 335 14.73 7.03 6,834 Options exercisable as of July 3, 2020 50 $ 14.40 3.07 $ 1,037
Summary of Restricted Stock, Restricted Stock Unit and Performance-based Restricted Stock Unit Activity	A summary of RSAs, RSUs and PRSUs activity for the nine months ended July 3, 2020 is as follows: Number of RSAs, RSUs and PRSUs Weighted- Aggregate Balance as of September 27, 2019 2,613 $ 21.81 $ 56,649 Granted 1,203 21.96 Vested and released (636) 26.05 Forfeited, canceled or expired (364) 22.19 Balance as of July 3, 2020 2,816 $ 20.86 $ 98,909

Geographic and Significant Cu_2

Geographic and Significant Customer Information (Tables)	9 Months Ended
	Jul. 03, 2020
Segment Reporting [Abstract]
Long-lived Assets by Geographic Areas	For information about our revenue in different geographic regions, based upon customer locations, see Note 2 - Revenue . Information about net property and equipment in different geographic regions is presented below (in thousands): July 3, September 27, United States $ 103,389 $ 116,037 Other Countries (1) 18,611 16,610 Total $ 122,000 $ 132,647 (1) Other than the United States, no country or region represented greater than 10% of the total net property and equipment as of the dates presented.
Schedule of Revenue by Major Customers by Reporting Segments	The following is a summary of customer concentrations as a percentage of revenue and accounts receivable as of and for the periods presented: Three Months Ended Nine Months Ended Revenue July 3, June 28, July 3, June 28, Customer A 13 % 17 % 14% 15 % Customer B 14 % — 11% — Customer C 14 % — 10% — Accounts Receivable July 3, September 27, Customer A 18 % 24 % Customer C 12 % 8 % Customer D 11 % 10 %

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 03, 2020	Sep. 28, 2019	Sep. 27, 2019
New Accounting Pronouncement, Early Adoption [Line Items]
Fiscal Period, Policy [Policy Text Block]	We have a 52- or 53-week fiscal year ending on the Friday closest to the last day of September. Fiscal year 2020 includes 53 weeks and fiscal year 2019 includes 52 weeks. To offset the effect of holidays, for fiscal years in which there are 53 weeks, we include the extra week arising in such fiscal years in the first quarter. Our first fiscal quarter ended January 3, 2020 included 14 weeks.
Cumulative effect of ASU 2016-02	$ (1,875)
Operating lease ROU assets	32,157
Present value of lease liabilities	37,936
Finance lease assets	33,919
Present value of lease liabilities	30,857
Total lease assets	$ 66,076		$ 40,442
Accounting Standards Update 2016-02
New Accounting Pronouncement, Early Adoption [Line Items]
Present value of lease liabilities		$ 39,000
Cumulative effect of ASU 2016-02		1,900
Operating lease ROU assets		37,700
Present value of lease liabilities		43,600
Existing obligations recorded as reduction to gross operating right-of-use assets		5,900
Finance lease assets		35,700
Present value of lease liabilities		31,800
Total lease assets		$ 37,100

Revenue (Details)

Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019	Sep. 27, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 137,267	$ 108,306	$ 382,788	$ 387,460
Contract liabilities	11,003		11,003		$ 10,653
Increase (decrease) in contract with customer liability			350
Contract liability noncurrent	3,500		3,500		$ 8,500
Amounts included in contract liabilities at the beginning of the period	200		$ 400
Net change in contract liabilities (percentage)			3.00%
Industrial & Defense
Disaggregation of Revenue [Line Items]
Revenue	48,035	46,809
Data Center
Disaggregation of Revenue [Line Items]
Revenue	32,432	17,614
Telecom
Disaggregation of Revenue [Line Items]
Revenue	56,800	43,883
United States
Disaggregation of Revenue [Line Items]
Revenue	53,633	52,340	$ 163,964	185,172
China
Disaggregation of Revenue [Line Items]
Revenue	55,886	27,451	133,659	104,491
Asia Pacific, excluding China
Disaggregation of Revenue [Line Items]
Revenue	19,688	16,371	58,552	60,384
Other Countries
Disaggregation of Revenue [Line Items]
Revenue	$ 8,060	$ 12,144	26,613	37,413
Industrial & Defense
Disaggregation of Revenue [Line Items]
Revenue			146,586	154,563
Data Center
Disaggregation of Revenue [Line Items]
Revenue			82,153	91,518
Telecom
Disaggregation of Revenue [Line Items]
Revenue			$ 154,049	$ 141,379

Investments - Other Investments

Investments - Other Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019	Sep. 27, 2019
Equity Securities without Readily Determinable Fair Value [Line Items]
Income (Loss) from Equity Method Investments			$ (13,637)	$ (3,937)
Equity Securities | Compute
Equity Securities without Readily Determinable Fair Value [Line Items]
Equity Method Investments	$ 5,000		5,000		$ 18,600
Income (Loss) from Equity Method Investments	(4,600)	$ 5,000	(13,600)	$ (3,900)
Preferred Stock | Privately Held Manufacturing Company
Equity Securities without Readily Determinable Fair Value [Line Items]
Investment cost basis	$ 5,000		5,000
Other than Temporary Impairment Losses, Investments			$ 0
Compute | Equity Securities
Equity Securities without Readily Determinable Fair Value [Line Items]
Noncontrolling interest ownership percentage	20.00%		20.00%

Fair Value - Assets and Liabili

Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 143,623	$ 101,487
Total liabilities measured at fair value	27,315	12,364
Common stock warrant liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	27,315	12,364
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	30,272	29,597
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	10,375	261
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	102,976	71,629
Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	10,375	261
Total liabilities measured at fair value	0	0
Active Markets for Identical Assets (Level 1) | Common stock warrant liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	0	0
Active Markets for Identical Assets (Level 1) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Active Markets for Identical Assets (Level 1) | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	10,375	261
Active Markets for Identical Assets (Level 1) | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	133,248	101,226
Total liabilities measured at fair value	0	0
Observable Inputs (Level 2) | Common stock warrant liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	0	0
Observable Inputs (Level 2) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	30,272	29,597
Observable Inputs (Level 2) | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Observable Inputs (Level 2) | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	102,976	71,629
Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Total liabilities measured at fair value	27,315	12,364
Unobservable Inputs (Level 3) | Common stock warrant liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	27,315	12,364
Unobservable Inputs (Level 3) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Unobservable Inputs (Level 3) | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Unobservable Inputs (Level 3) | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 0	$ 0

Fair Value Fair Value - Quantit

Fair Value Fair Value - Quantitative Information Used in Fair Value Calculation of Level 3 Liabilities (Details) - Common stock warrant liability - Black-Scholes model	Jul. 03, 2020$ / shares	Sep. 27, 2019$ / shares
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants and rights outstanding term	6 months	1 year 2 months 12 days
Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability measurement input	0.0014	0.0171
Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability measurement input	0.798	0.614
Exercise price (in dollars per share)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability measurement input	14.05	14.05
Stock price (in dollars per share)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability measurement input	35.13	21.68
Dividend rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability measurement input	0	0

Fair Value - Changes in Assets

Fair Value - Changes in Assets and Liabilities with Inputs Classified within Level 3 of Fair Value (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019
Contingent consideration
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period		$ 585
Net Realized/Unrealized Losses Included in Earnings		65
Purchases and Issuances		0
Sales and Settlements		(650)
Balance at end of period		0
Common stock warrant liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 12,364	13,129
Net Realized/Unrealized Losses Included in Earnings	14,951	(5,788)
Purchases and Issuances	0	0
Sales and Settlements	0	0
Balance at end of period	$ 27,315	$ 7,341

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 53,936	$ 59,184
Work-in-process	11,427	13,799
Finished goods	30,213	34,897
Total inventory, net	$ 95,576	$ 107,880

Property Plant and Equipment -

Property Plant and Equipment - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 283,925	$ 281,834
Less accumulated depreciation and amortization	(161,925)	(149,187)
Property and equipment, net	122,000	132,647
Construction in process
Property, Plant and Equipment [Line Items]
Total property and equipment	14,643	24,848
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	192,835	175,696
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	18,715	12,962
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	3,199	3,716
Computer equipment and software
Property, Plant and Equipment [Line Items]
Total property and equipment	18,421	18,116
Assets Held under Capital Leases [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	0	46,496
Less accumulated depreciation and amortization		(5,300)
Assets Held Under Finance Leases [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 36,112	$ 0

Property Plant and Equipment _2

Property Plant and Equipment - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019	Sep. 27, 2019
Property, Plant and Equipment [Abstract]
Depreciation and amortization expense	$ 7,100	$ 7,300	$ 21,800	$ 22,400
Accumulated depreciation	161,925		161,925		$ 149,187
Amortization of lease assets	$ 747		$ 2,193

Debt - Additional Information (

Debt - Additional Information (Details)	9 Months Ended
	Jul. 03, 2020USD ($)
Debt Instrument [Line Items]
Principle amount	$ 700,000,000
Unamortized deferred financing costs	5,900,000
Term Loans
Debt Instrument [Line Items]
Unamortized deferred financing costs	5,469,000
Debt Instrument, Periodic Payment	$ 1,700,000
Debt Instrument, Payment Terms, Reinvestment Of Divestiture of Business Proceeds, Period	18 months
Debt Instrument, Payment Terms, Reinvestment Of Divestiture Of Business Proceeds, Transaction Completion, Period	6 months
Amount drawn	$ 659,832,000
Effective interest rate	2.43%
Principal balance	$ 667,808,000
Estimated fair value of Term Loans	617,700,000
Revolving Credit Facility
Debt Instrument [Line Items]
Unamortized deferred financing costs	400,000
Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity	160,000,000
Credit facility, remaining borrowing capacity	160,000,000
Line of Credit Facility, Covenant Terms	$ 50,000,000
Fed Funds Effective Rate Overnight Index Swap Rate [Member] | Term Loans
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
One Month London Interbank Offered Rate (LIBOR) [Member] | Term Loans
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
LIBOR Rate | Term Loans
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Minimum | LIBOR Rate | Term Loans
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%

Debt Debt - Schedule of Long-te

Debt Debt - Schedule of Long-term Debt Instruments (Details) - Term Loans $ in Thousands	9 Months Ended
	Jul. 03, 2020USD ($)
Debt Instrument [Line Items]
Principal balance	$ 667,808
Effective interest rate	2.43%
LIBOR Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Margin
Debt Instrument [Line Items]
Basis spread on variable rate	0.18%

Debt - Schedule of Remained Out

Debt - Schedule of Remained Outstanding on Term Loans (Details) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Debt Instrument [Line Items]
Unamortized deferred financing costs	$ (5,900)
Current portion	6,885	$ 6,885
Long-term, less current portion	652,947	$ 655,272
Term Loans
Debt Instrument [Line Items]
Principal balance	667,808
Unamortized discount	(2,507)
Unamortized deferred financing costs	(5,469)
Total term loans	659,832
Current portion	6,885
Long-term, less current portion	$ 652,947

Debt - Schedule of Minimum Prin

Debt - Schedule of Minimum Principal Payments under Term Loans (Details) - Term Loans $ in Thousands	Jul. 03, 2020USD ($)
Debt Instrument [Line Items]
2020 (remainder of fiscal year)	$ 1,721
2021	6,885
2022	6,885
2023	6,885
2024	645,432
Total	$ 667,808

Leases Narrative (Details)

Leases Narrative (Details)	9 Months Ended
	Jul. 03, 2020renewal_option
Leases [Abstract]
Number of renewal options	2
Finance lease renewal term	10 years

Leases Assets and Liabilities o

Leases Assets and Liabilities of Lessee (Details) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Assets:
Operating lease ROU assets	$ 32,157
Finance lease assets	33,919
Capital Leased Assets, Gross		$ 40,442
Total lease assets	66,076	40,442
Current:
Operating lease liabilities	7,498
Finance lease liabilities	1,506	1,084
Long-term:
Operating lease liabilities	30,438
Finance lease liabilities	29,351	29,506
Total lease liabilities	$ 68,793	$ 30,590

Leases Weighted-average Lease T

Leases Weighted-average Lease Term and Discount Rate (Details)	Jul. 03, 2020
Weighted Average Remaining Lease Term [Abstract]
Operating leases	6 years 6 months 25 days
Finance leases	17 years 25 days
Weighted-average discount rate:
Operating leases	6.36%
Finance leases	6.71%

Leases Lease Cost (Details)

Leases Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jul. 03, 2020	Jul. 03, 2020
Leases [Abstract]
Amortization of lease assets	$ 747	$ 2,193
Interest on lease liabilities	525	1,641
Total finance lease cost	1,272	3,834
Operating lease cost	2,451	7,393
Variable lease cost	749	1,937
Short-term lease cost	69	339
Sublease income	$ (117)	$ (442)

Leases Supplemental Cash Flow I

Leases Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019
Cash paid for amounts included in measurement of lease liabilities:
Operating cash flows from operating leases	$ 7,027
Operating cash flows from finance leases	1,641
Financing cash flows from finance leases	1,307	$ 809
Non-cash activities:
Operating lease right-of-use assets obtained in exchange for new lease liabilities	242
Financing lease assets obtained in exchange for new lease liabilities	$ 586

Leases Lease Maturity Under Top

Leases Lease Maturity Under Topic 842 (Details) $ in Thousands	Jul. 03, 2020USD ($)
Operating Leases
2020	$ 2,527
2021	9,250
2022	7,479
2023	6,012
2024	5,588
2025	3,650
Thereafter	12,284
Total lease payments	46,790
Less: interest	8,854
Present value of lease liabilities	37,936
Finance Leases
2020	963
2021	3,394
2022	2,836
2023	2,820
2024	2,856
2025	2,783
Thereafter	37,150
Total lease payments	52,802
Less: interest	21,945
Present value of lease liabilities	$ 30,857

Leases FutureMinimumLeasePaymen

Leases FutureMinimumLeasePayments under Topic 840 (Details) $ in Thousands	Sep. 27, 2019USD ($)
Operating Leases
2020	$ 9,987
2021	9,233
2022	7,447
2023	6,061
2024	5,564
Thereafter	16,437
Total future minimum lease payments	54,729
Capital Leases
2020	3,299
2021	3,343
2022	2,884
2023	2,816
2024	2,853
Thereafter	39,927
Total future minimum lease payments	55,122
Less amount representing interest	(26,241)
Present value of net minimum capital lease payments	$ 28,881

Impairments - Narrative (Detail

Impairments - Narrative (Details) $ in Millions	3 Months Ended
	Jun. 28, 2019USD ($)
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived	$ 217.5
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived	33.2
2019 Restructuring Plan | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived	2.4
2019 Restructuring Plan | Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived	3.9
Construction in process
Finite-Lived Intangible Assets [Line Items]
Tangible Asset Impairment Charges	$ 7.1

Intangible Assets - Summary of

Intangible Assets - Summary of Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Finite-Lived Intangible Assets [Line Items]
Total	$ 12,419	$ 21,862	$ 37,912	$ 62,189
Cost of Revenue
Finite-Lived Intangible Assets [Line Items]
Total	4,348	8,139	13,115	24,074
Selling, General and Administrative
Finite-Lived Intangible Assets [Line Items]
Total	$ 8,071	$ 13,723	$ 24,797	$ 38,115

Intangible Assets - Summary o_2

Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Finite-Lived Intangible Assets [Line Items]
Trade name (indefinite-lived)	$ 3,400	$ 3,400
Total	428,704	428,952
Less accumulated amortization	(285,387)	(247,724)
Intangible assets — net	143,317	181,228
Developed technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	179,434	179,682
Less accumulated amortization	(147,700)	(134,800)
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	245,870	245,870
Less accumulated amortization	$ (137,700)	$ (112,900)

Intangible Assets - Summary o_3

Intangible Assets - Summary of Activity in Intangible Assets and Goodwill (Details) $ in Thousands	9 Months Ended
	Jul. 03, 2020USD ($)
Goodwill and Intangible Assets [Roll Forward]
Beginning Balance	$ 428,952
Disposal of a fully amortized intangible asset	(248)
Currency translation adjustment	0
Ending Balance	428,704
Goodwill [Roll Forward]
Balance at beginning of period	314,727
Disposal of a fully amortized intangible asset	0
Currency translation adjustment	52
Balance at end of period	314,779
Trade Names
Indefinite Lived Intangible Assets Rollforward [Roll Forward]
Beginning Balance	3,400
Disposal of a fully amortized intangible asset	0
Currency translation adjustment	0
Ending Balance	3,400
Developed technology
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	179,682
Disposal of a fully amortized intangible asset	(248)
Currency translation adjustment	0
Ending Balance	179,434
Customer relationships
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	245,870
Disposal of a fully amortized intangible asset	0
Currency translation adjustment	0
Ending Balance	$ 245,870

Intangible Assets - Summary o_4

Intangible Assets - Summary of Estimated Amortization of Intangible Assets (Details) $ in Thousands	Jul. 03, 2020USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2020 Remaining	$ 12,418
2019	46,213
2020	33,433
2021	26,048
2022	15,410
Thereafter	6,395
Total	$ 139,917

Intangible Assets - Additional

Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 285,387	$ 247,724
Developed technology
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	147,700	134,800
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 137,700	$ 112,900

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Details) - $ / shares	Jul. 03, 2020	Mar. 31, 2012
Equity [Abstract]
Preferred stock, shares authorized	10,000,000
Preferred stock, par value (in usd per share)	$ 0.001
Common stock, shares authorized	300,000,000
Common stock, par value (in usd per share)	$ 0.001
Class of Warrant or Right [Line Items]
Common stock warrants per share (in usd per share)		$ 14.05
Common Stock
Class of Warrant or Right [Line Items]
Common stock warrants (in shares)		1,281,358

Earnings (Loss) Per Share (Deta

Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Earnings Per Share [Abstract]
Fair Value Adjustment of Warrants	$ 19,511	$ (1,927)	$ 14,951	$ (5,788)
Numerator:
Net loss	(24,982)	(324,714)	(63,570)	(394,314)
Warrant liability gain	0	(1,927)	0	(5,788)
Net loss attributable to common stockholders	$ (24,982)	$ (326,641)	$ (63,570)	$ (400,102)
Denominator:
Weighted average common shares outstanding-basic	66,796,000	65,858,000	66,512,000	65,555,000
Dilutive effect of options and warrants (in shares)	0	86,746	0	166,318
Weighted average common shares outstanding-diluted	66,796,000	65,945,000	66,512,000	65,722,000
Earnings Per Share, Basic [Abstract]
Loss per share - Basic	$ (0.37)	$ (4.93)	$ (0.96)	$ (6.01)
Number of antidilutive shares of common stock excluded from the calculation (in shares)	1,766,561	80,046	1,543,686	129,599

Restructurings - Additional Inf

Restructurings - Additional Information (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Jul. 03, 2020USD ($)	Sep. 27, 2019USD ($)employeefacility	Jun. 28, 2019USD ($)	Jul. 03, 2020USD ($)	Jun. 28, 2019USD ($)
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				$ 2,527
Charges and adjustments	$ (554)		$ 8,887	1,494	$ 17,047
Charges paid/settled/other				(2,952)
Restructuring Reserve, Ending Balance	1,069	$ 2,527		1,069
Ithaca Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				83
Charges and adjustments			200	(40)	5,500
Charges paid/settled/other				(43)
Restructuring Reserve, Ending Balance	0	83		0
Design Facility Restructuring Plan
Restructuring Reserve [Roll Forward]
Charges and adjustments			(300)		2,500
2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				1,993
Charges and adjustments	(600)		9,000	1,552
Charges paid/settled/other				(2,476)
Restructuring Reserve, Ending Balance	1,069	$ 1,993		1,069
Number of positions eliminated | employee		250
Number of facilities | facility		6
Maximum | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Additional restructuring costs expected during the remainder of 2019	200			200
Employee related expenses
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				1,549
Charges and adjustments	(761)		5,135	787	6,742
Charges paid/settled/other				(1,460)
Restructuring Reserve, Ending Balance	876	$ 1,549		876
Employee related expenses | Ithaca Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				13
Charges and adjustments			100	0	1,500
Charges paid/settled/other				(13)
Restructuring Reserve, Ending Balance	0	13		0
Employee related expenses | Design Facility Restructuring Plan
Restructuring Reserve [Roll Forward]
Charges and adjustments			100		300
Employee related expenses | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				1,536
Charges and adjustments	(800)		4,900	787
Charges paid/settled/other				(1,447)
Restructuring Reserve, Ending Balance	876	1,536		876
Facility related expenses
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				978
Charges and adjustments	207		3,752	707	10,305
Charges paid/settled/other				(1,492)
Restructuring Reserve, Ending Balance	193	978		193
Facility related expenses | Ithaca Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				70
Charges and adjustments				(40)	4,000
Charges paid/settled/other				(30)
Restructuring Reserve, Ending Balance	0	70		0
Facility related expenses | Design Facility Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				451
Charges and adjustments			(400)	(18)
Charges paid/settled/other				(433)
Restructuring Reserve, Ending Balance	0	451		0
Facility related expenses | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				457
Charges and adjustments				765	4,000
Charges paid/settled/other				(1,029)
Restructuring Reserve, Ending Balance	193	$ 457		193
Other Costs | Design Facility Restructuring Plan
Restructuring Reserve [Roll Forward]
Charges and adjustments					$ 2,200
Other Costs | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Charges and adjustments	$ 200		$ 100	$ 800

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 8,495	$ 2,815	$ 26,921	$ 20,163
Compensation cost not yet recognized	53,200		$ 53,200
Unrecognized compensation cost period for recognition			2 years 2 months 12 days
Stock option exercises (in shares)			41
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 700	$ 100	$ 1,000	300
Restricted Stock Restricted Stock Units And Performance Based Restricted Stock Units[Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested in period fair value			$ 18,700	$ 10,900
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of options granted			4 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of options granted			7 years
2012 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Available for grant (in shares)	17,000		17,000
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Available for grant (in shares)	3,600		3,600
Unrecognized compensation cost for Employee Stock Purchase Plan	$ 800		$ 800

Share-Based Compensation Share-

Share-Based Compensation Share-Based Compensation Plans - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 700	$ 100	$ 1,000	$ 300
Number of Shares
Beginning Blance Stock options outstanding (in shares)			376,000
Exercised (in shares)			(41,000)
Forfeited, canceled or expired (in shares)			0
Ending Balance Stock options outstanding (in shares)	335,000		335,000
Weighted-Average Exercise Price per Share
Beginning Balance weighted-average exercise price per share (in usd per share)			$ 13.58
Exercised (in dollars per share)			4.12
Forfeited, canceled or expired (in dollars per share)			19.45
Ending Balance weighted-average exercise price per share (in usd per share)	$ 14.73		$ 14.73
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average remaining contractual term options outstanding			7 years 10 days
Aggregate intrinsic value stock options outstanding	$ 6,834		$ 6,834
Options vested and expected to vest (in shares)	335,000		335,000
Options vested and expected to vest (in dollars per share)	$ 14.73		$ 14.73
Weighted average remaining contractual term options vested and expected to vest			7 years 10 days
Aggregate intrinsic value of options vested and expected to vest	$ 6,834		$ 6,834
Options exercisable (in shares)	50,000		50,000
Options exercisable (in dollars per share)	$ 14.40		$ 14.40
Weighted-average remaining contractual term of options exercisable			3 years 25 days
Options exercisable intrinsic value	$ 1,037		$ 1,037

Share-Based Compensation - Summ

Share-Based Compensation - Summary of Restricted Stock, Restricted Stock Unit and Performance-based Restricted Stock Unit Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Jul. 03, 2020	Sep. 27, 2019
Number of RSAs, RSUs and PRSUs (in thousands)
Balance at beginning of period (in shares)	2,613
Granted (in shares)	1,203
Vested and released (in shares)	(636)
Forfeited, canceled or expired (in shares)	(364)
Balance at end of period (in shares)	2,816
Weighted- Average Grate Date Fair Value
Balance at beginning of period (in usd per share)	$ 21.81
Granted (in usd per share)	21.96
Vested and released (in usd per share)	26.05
Forfeited, canceled or expired (in usd per share)	22.19
Balance at end of period (in usd per share)	$ 20.86
Aggregate Intrinsic Value (in thousands)	$ 98,909	$ 56,649

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Investments, Owned, Federal Income Tax Note [Line Items]
Effective Income Tax Rate Reconciliation, Percent	(7.50%)	0.40%	(8.00%)	(0.10%)
Income tax expense (benefit)	$ 1,750	$ (1,322)	$ 4,716	$ 346
Unrecognized tax benefit	300		$ 300
Effective tax rate			21.00%
Deferred tax assets	39,800		$ 39,800
Net Operating Loss Carryforward
Investments, Owned, Federal Income Tax Note [Line Items]
Increase to deferred tax valuation allowance	$ 1,400

Geographic and Significant Cu_3

Geographic and Significant Customer Information - Additional Information (Details)	9 Months Ended
	Jul. 03, 2020segment
Segment Reporting [Abstract]
Number of reportable operating segment	1

Geographic and Significant Cu_4

Geographic and Significant Customer Information - Summary of Different Geographic Regions (Details) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 122,000	$ 132,647
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	103,389	116,037
Other Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 18,611	$ 16,610

Geographic and Significant Cu_5

Geographic and Significant Customer Information - Summary of Customer Concentrations as Percentage of Revenue and Accounts Receivable (Details) - Customer Concentration Risk	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Revenue
Revenue from External Customer [Line Items]
Concentration risk, percentage	66.00%	54.00%	61.00%	54.00%
Revenue | Customer A
Revenue from External Customer [Line Items]
Concentration risk, percentage	13.00%	17.00%	14.00%	15.00%
Revenue | Customer B
Revenue from External Customer [Line Items]
Concentration risk, percentage	14.00%	0.00%	11.00%	0.00%
Revenue | Customer C
Revenue from External Customer [Line Items]
Concentration risk, percentage	14.00%		10.00%
Accounts Receivable | Customer A
Revenue from External Customer [Line Items]
Concentration risk, percentage			18.00%	24.00%
Accounts Receivable | Customer C
Revenue from External Customer [Line Items]
Concentration risk, percentage			12.00%	8.00%
Accounts Receivable | Customer D
Revenue from External Customer [Line Items]
Concentration risk, percentage			11.00%	10.00%

Related-Party Transactions (Det

Related-Party Transactions (Details) $ in Millions	9 Months Ended
	Jul. 03, 2020USD ($)
Director
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.2