10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended April 3, 2020

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from            to            

Commission File Number: 001-35451

MACOM Technology Solutions Holdings, Inc.

(Exact name of registrant as specified in its charter) 

Delaware	27-0306875
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

100 Chelmsford Street

Lowell, MA 01851

(Address of principal executive offices and zip code)

(978) 656-2500

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of exchange on which registered
Common Stock, par value $0.001 per share	MTSI	Nasdaq Global Select Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐  

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒

As of April 24, 2020, there were 66,695,464 shares of the registrant’s common stock outstanding.

MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.

FORM 10-Q

TABLE OF CONTENTS

			Page No.
PART I—FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)		1
		Condensed Consolidated Balance Sheets	1
		Condensed Consolidated Statements of Operations	2
		Condensed Consolidated Statements of Comprehensive Loss	3
		Condensed Consolidated Statements of Stockholders’ Equity	4
		Condensed Consolidated Statements of Cash Flows	6
		Notes to Condensed Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		22
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		29
Item 4.	Controls and Procedures		30
PART II—OTHER INFORMATION
Item 1.	Legal Proceedings		31
Item 1A.	Risk Factors		31
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		32
Item 6.	Exhibits		33
Signatures			34

PART I—FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands)

(Unaudited)

	April 3, 2020			September 27, 2019
ASSETS
Current assets:
Cash and cash equivalents	$	120,735		$	75,519
Short-term investments	100,847			101,226
Accounts receivable (less allowances of $4,407 and $5,047, respectively)	53,003			69,790
Inventories	99,624			107,880
Income tax receivable	19,119			16,661
Prepaid and other current assets	24,655			27,506
Total current assets	417,983			398,582
Property and equipment, net	125,765			132,647
Goodwill	314,820			314,727
Intangible assets, net	155,735			181,228
Deferred income taxes	42,848			43,812
Other investments	14,547			23,613
Other long-term assets	41,101			10,965
TOTAL ASSETS	$	1,112,799		$	1,105,574
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Current portion of finance lease obligations and other	$	1,596		$	1,084
Current portion of long-term debt	6,885			6,885
Accounts payable	26,428			24,822
Accrued liabilities	51,028			39,908
Deferred revenue	7,027			2,137
Total current liabilities	92,964			74,836
Finance lease obligations and other, less current portion	29,697			29,506
Long-term debt, less current portion	653,722			655,272
Warrant liability	7,804			12,364
Deferred income taxes	2,051			632
Other long-term liabilities	40,830			19,068
Total liabilities	827,068			791,678
Stockholders’ equity:
Common stock	67			66
Treasury stock, at cost	(330		)	(330		)
Accumulated other comprehensive income	2,126			4,358
Additional paid-in capital	1,116,105			1,101,576
Accumulated deficit	(832,237		)	(791,774		)
Total stockholders’ equity	285,731			313,896
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$	1,112,799		$	1,105,574

See notes to condensed consolidated financial statements.

1

MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

(Unaudited)

 

	Three Months Ended						Six Months Ended
	April 3, 2020			March 29, 2019			April 3, 2020			March 29, 2019
Revenue	$	126,424		$	128,465		$	245,521		$	279,154
Cost of revenue	63,054			71,135			123,947			145,199
Gross profit	63,370			57,330			121,574			133,955
Operating expenses:
Research and development	35,830			42,361			70,988			85,885
Selling, general and administrative	31,994			41,998			64,334			84,518
Restructuring charges	815			3,182			2,049			8,160
Total operating expenses	68,639			87,541			137,371			178,563
Loss from operations	(5,269		)	(30,211		)	(15,797		)	(44,608		)
Other expense:
Warrant liability gain (expense)	8,647			(1,607		)	4,560			3,862
Interest expense, net	(7,672		)	(9,402		)	(16,293		)	(18,175		)
Other expense, net	(4,352		)	(4,440		)	(8,092		)	(9,010		)
Total other expense net	(3,377		)	(15,449		)	(19,825		)	(23,323		)
Loss before income taxes	(8,646		)	(45,660		)	(35,622		)	(67,931		)
Income tax expense	1,580			544			2,966			1,669
Net loss	$	(10,226	)	$	(46,204	)	$	(38,588	)	$	(69,600	)
Net loss per share:
Basic loss per share:
Loss per share - basic	$	(0.15	)	$	(0.71	)	$	(0.58	)	$	(1.06	)
Diluted loss per share:
Loss per share - diluted	$	(0.28	)	$	(0.71	)	$	(0.64	)	$	(1.12	)
Shares used:
Basic	66,522			65,531			66,375			65,404
Diluted	67,085			65,531			66,921			65,610

See notes to condensed consolidated financial statements.

2

MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(In thousands)

(Unaudited)

	Three Months Ended						Six Months Ended
	April 3, 2020			March 29, 2019			April 3, 2020			March 29, 2019
Net loss	$	(10,226	)	$	(46,204	)	$	(38,588	)	$	(69,600	)
Unrealized (loss) gain on short-term investments, net of tax	(1,376		)	606			(1,297		)	350
Foreign currency translation (loss) gain, net of tax	(687		)	351			(935		)	1,260
Other comprehensive (loss) income, net of tax	(2,063		)	957			(2,232		)	1,610
Total comprehensive loss	$	(12,289	)	$	(45,247	)	$	(40,820	)	$	(67,990	)

See notes to condensed consolidated financial statements.

3

MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands)

(Unaudited)

	Three Months Ended
										Accumulated Other Comprehensive Income			Additional Paid-in Capital			Accumulated Deficit			Total Stockholders’ Equity
	Common Stock				Treasury Stock
	Shares		Amount		Shares		Amount
Balance at January 3, 2020	66,346		$	66	(23	)	$	(330	)	$	4,189		$	1,111,606		$	(822,011	)	$	293,520
Stock options exercises	16		—		—		—			—			79			—			79
Vesting of restricted common stock and units	554		1		—		—			—			—			—			1
Shares repurchased for tax withholdings on equity awards	(198	)	—		—		—			—			(5,856		)	—			(5,856		)
Share-based compensation	—		—		—		—			—			10,276			—			10,276
Other comprehensive loss, net of tax	—		—		—		—			(2,063		)	—			—			(2,063		)
Net loss	—		—		—		—			—			—			(10,226		)	(10,226		)
Balance at April 3, 2020	66,718		$	67	(23	)	$	(330	)	$	2,126		$	1,116,105		$	(832,237	)	$	285,731

	Six Months Ended
										Accumulated Other Comprehensive Income			Additional Paid-in Capital			Accumulated Deficit			Total Stockholders’ Equity
	Common Stock				Treasury Stock
	Shares		Amount		Shares		Amount
Balance at September 27, 2019	66,177		$	66	(23	)	$	(330	)	$	4,358		$	1,101,576		$	(791,774	)	$	313,896
Cumulative effect of ASU 2016-02	—		—		—		—			—			—			(1,875		)	(1,875		)
Stock options exercises	18		—		—		—			—			122			—			122
Vesting of restricted common stock and units	564		1		—		—			—			—			—			1
Issuance of common stock pursuant to employee stock purchase plan	160		—		—		—			—			1,930			—			1,930
Shares repurchased for tax withholdings on equity awards	(201	)	—		—		—			—			(5,949		)	—			(5,949		)
Share-based compensation	—		—		—		—			—			18,426			—			18,426
Other comprehensive loss, net of tax	—		—		—		—			(2,232		)	—			—			(2,232		)
Net loss	—		—		—		—			—			—			(38,588		)	(38,588		)
Balance at April 3, 2020	66,718		$	67	(23	)	$	(330	)	$	2,126		$	1,116,105		$	(832,237	)	$	285,731

See notes to condensed consolidated financial statements.

4

	Three Months Ended
										Accumulated Other Comprehensive Income		Additional Paid-in Capital			Accumulated Deficit			Total Stockholders’ Equity
	Common Stock				Treasury Stock
	Shares		Amount		Shares		Amount
Balance at December 28, 2018	65,395		$	65	(23	)	$	(330	)	$	2,841	$	1,086,052		$	(431,372	)	$	657,256
Stock options exercises	12		—		—		—			—		24			—			24
Vesting of restricted common stock and units	490		1		—		—			—		—			—			1
Shares repurchased for tax withholdings on equity awards	(174	)	—		—		—			—		(3,085		)	—			(3,085		)
Share-based compensation	—		—		—		—			—		8,076			—			8,076
Other comprehensive loss, net of tax	—		—		—		—			957		—			—			957
Net loss	—		—		—		—			—		—			(46,204		)	(46,204		)
Balance at March 29, 2019	65,723		$	66	(23	)	$	(330	)	$	3,798	$	1,091,067		$	(477,576	)	$	617,025

	Six Months Ended
										Accumulated Other Comprehensive Income		Additional Paid-in Capital			Accumulated Deficit			Total Stockholders’ Equity
	Common Stock				Treasury Stock
	Shares		Amount		Shares		Amount
Balance at September 28, 2018	65,202		$	65	(23	)	$	(330	)	$	2,188	$	1,074,728		$	(407,976	)	$	668,675
Stock option exercises	12		—		—		—			—		24			—			24
Vesting of restricted common stock and units	545		1		—		—			—		—			—			1
Issuance of common stock pursuant to employee stock purchase plan	156		—		—		—			—		2,392			—			2,392
Shares repurchased for tax withholdings on equity awards	(192	)	—		—		—			—		(3,426		)	—			(3,426		)
Share-based compensation	—		—		—		—			—		17,349			—			17,349
Other comprehensive income, net of tax	—		—		—		—			1,610		—			—			1,610
Net loss	—		—		—		—			—		—			(69,600		)	(69,600		)
Balance at March 29, 2019	65,723		$	66	(23	)	$	(330	)	$	3,798	$	1,091,067		$	(477,576	)	$	617,025

See notes to condensed consolidated financial statements.

5

MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

	Six Months Ended
	April 3, 2020			March 29, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$	(38,588	)	$	(69,600	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and intangibles amortization	40,241			55,478
Share-based compensation	18,426			17,349
Warrant liability gain	(4,560		)	(3,862		)
Deferred financing cost amortization	2,031			2,031
Deferred income taxes	2,322			46
Impairment and restructuring related	—			4,696
Loss on minority equity investment	9,066			8,971
Other adjustments, net	1,029			377
Change in operating assets and liabilities:
Accounts receivable	16,787			9,989
Inventories	8,256			2,904
Prepaid expenses and other assets	9,772			(1,256		)
Accounts payable	1,812			(4,103		)
Accrued and other liabilities	(849		)	1,407
Income taxes	(2,807		)	2,411
Net cash provided by operating activities	62,938			26,838
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(9,036		)	(22,600		)
Proceeds from sales and maturities of short-term investments	90,026			86,447
Purchases of short-term investments	(90,401		)	(86,951		)
Sale of businesses and assets	363			—
Acquisition of businesses, net	—			(375		)
Net cash used in investing activities	(9,048		)	(23,479		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from stock option exercises and employee stock purchases	2,052			2,416
Payments on long-term debt	(3,442		)	(3,442		)
Payments on finance leases and other	(871		)	(518		)
Repurchase of common stock - tax withholdings on equity awards	(5,949		)	(3,426		)
Payments of contingent consideration and other	—			(577		)
Net cash used in financing activities	(8,210		)	(5,547		)
Foreign currency effect on cash	(464		)	189
NET CHANGE IN CASH AND CASH EQUIVALENTS	45,216			(1,999		)
CASH AND CASH EQUIVALENTS — Beginning of period	75,519			94,676
CASH AND CASH EQUIVALENTS — End of period	$	120,735		$	92,677

See notes to condensed consolidated financial statements.

6

MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1. BASIS OF PRESENTATION AND 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 (“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 total liabilities of approximately $39.0 million and a decrease to 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

7

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 six months ended April 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.

2. 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Revenue by Market:
Telecommunications	$	51,648	$	47,337	$	97,249	$	97,496
Industrial & Defense	48,069		50,471		98,552		107,754
Data Center	26,707		30,657		49,720		73,904
Total	$	126,424	$	128,465	$	245,521	$	279,154

	Three Months Ended				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Revenue by Geographic Region:
United States	$	56,380	$	64,714	$	110,331	$	132,832
China	40,433		32,419		77,773		77,041
Asia Pacific, excluding China (1)	20,044		20,598		38,864		44,013
Other Countries (2)	9,567		10,734		18,553		25,268
Total	$	126,424	$	128,465	$	245,521	$	279,154

8

(1) Asia Pacific represents Taiwan, Japan, Singapore, India, Thailand, South Korea, Australia, Malaysia, New Zealand and the Philippines.

(2) Outside the United States, no country or region represented greater than 10% of our total revenue as of the dates presented, other than China and the 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 advance consideration received from customers for contracts prior to the transfer of control to the customer, and therefore revenue is recognized upon delivery of products and services.

The following table presents the changes in contract liabilities during the six months ended April 3, 2020 (in thousands):

	April 3, 2020		September 27, 2019		$ Change			% Change
Contract liabilities	$	10,542	$	10,653	$	(111	)	(1	)%

As of April 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 decrease in contract liabilities during the six months ended April 3, 2020, as shown in the table above, was primarily from the recognition of revenue deferred for funds received prior to when certain of our customers obtain control of the product or services.

During the three and six months ended April 3, 2020, we recognized net sales of $0.1 million and $0.2 million, respectively, that were included in the contract liabilities balance at the beginning of the period.

3. 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):

	April 3, 2020
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Aggregate Fair Value
Corporate bonds	$	29,778	$	—	$	(1,291	)	$	28,487
Commercial paper	72,364		28		(32		)	72,360
Total short-term investments	$	102,142	$	28	$	(1,323	)	$	100,847

	September 27, 2019
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Aggregate Fair Value
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):

	April 3, 2020		September 27, 2019
Less than 1 year	$	77,862	$	75,233
Over 1 year	22,985		25,993
Total short-term investments	$	100,847	$	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.

9

Other Investments — As of April 3, 2020, we held 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 April 3, 2020, the cost of this investment was $5.0 million. We evaluate this investment for impairment at each balance sheet date, and through April 3, 2020, no impairment has been recorded for this investment.

Also included in long-term investments, is a minority investment of less than 20.0% in the outstanding equity of a private company (“Compute”) that was acquired in conjunction with our divestiture of the Compute business during our fiscal year 2018. This investment value is updated quarterly based on our proportionate share of the losses or earnings, as well as any changes in Compute's equity, utilizing the equity method. During the three and six months ended April 3, 2020, we recorded losses of $5.3 million and $9.1 million, respectively, associated with this investment as other expense in our condensed consolidated statements of operations. During the three and six months ended March 29, 2019, we recorded losses of $4.4 million and $9.0 million, respectively, associated with this investment. As of April 3, 2020 and September 27, 2019, the carrying value of this investment was $9.5 million and $18.6 million, respectively.

4. FAIR VALUE

We group our financial assets and liabilities measured at fair value on a recurring basis in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:

Level 1 - Quoted prices in active markets for identical assets or liabilities. 

Level 2 - Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets with insufficient volume or infrequent transactions (less active markets), or model-driven valuations in which all significant inputs are observable or can be derived principally from, or corroborated with, observable market data.

Level 3 - Fair value is derived from valuation techniques in which one or more significant inputs are unobservable, including assumptions and judgments made by us.

Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis

We measure certain assets and liabilities at fair value on a recurring basis such as our financial instruments and derivatives. There have been no transfers between Level 1, 2 or 3 assets or liabilities during the three and six months ended April 3, 2020.

Assets and liabilities measured at fair value on a recurring basis consist of the following (in thousands):

	April 3, 2020
	Fair Value		Active Markets for Identical Assets (Level 1)		Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
Assets
Money market funds	$	491	$	491	$	—	$	—
Commercial paper	72,360		—		72,360		—
Corporate bonds	28,487		—		28,487		—
Total assets measured at fair value	$	101,338	$	491	$	100,847	$	—
Liabilities
Common stock warrant liability	$	7,804	$	—	$	—	$	7,804
Total liabilities measured at fair value	$	7,804	$	—	$	—	$	7,804

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	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

As of April 3, 2020 and September 27, 2019, the fair value of the common stock warrants was estimated using a Black-Scholes option pricing model.

The quantitative information utilized in the fair value calculation of our Level 3 liabilities is as follows:

			Inputs
Liabilities	Valuation Technique	Unobservable Input	April 3, 2020	September 27, 2019
Warrant liability	Black-Scholes model	Volatility	62.1%	61.4%
		Discount rate	0.15%	1.71%
		Expected life	0.7 years	1.2 years
		Exercise price	$14.05	$14.05
		Stock price	$18.55	$21.68
		Dividend rate	—%	—%

The changes in liabilities with inputs classified within Level 3 of the fair value hierarchy consist of the following (in thousands):

	September 27, 2019		Net Realized/Unrealized Losses Included in Earnings			Purchases and Issuances		Sales and Settlements		April 3, 2020
Common stock warrant liability	$	12,364	$	(4,560	)	$	—	$	—	$	7,804

	September 28, 2018		Net Realized/Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements			March 29, 2019
Contingent consideration	$	585	$	65		$	—	$	(650	)	$	—
Common stock warrant liability	$	13,129	$	(3,861	)	$	—	$	—		$	9,268

5. INVENTORIES

Inventories consist of the following (in thousands):

	April 3, 2020		September 27, 2019
Raw materials	$	56,018	$	59,184
Work-in-process	12,006		13,799
Finished goods	31,600		34,897
Total inventory, net	$	99,624	$	107,880

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6. PROPERTY AND EQUIPMENT

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

	April 3, 2020			September 27, 2019
Construction in process	$	14,067		$	24,848
Machinery and equipment	191,660			175,696
Leasehold improvements	19,241			12,962
Furniture and fixtures	3,736			3,716
Computer equipment and software	18,277			18,116
Capital lease and financed assets	—			46,496
Finance lease assets	36,112			—
Total property and equipment	$	283,093		$	281,834
Less accumulated depreciation and amortization	(157,328		)	(149,187		)
Property and equipment, net	$	125,765		$	132,647

Depreciation and amortization expense related to property and equipment for the three and six months ended April 3, 2020 was $7.3 million and $14.7 million, respectively. Depreciation and amortization expense related to property and equipment for the three and six months ended March 29, 2019 was $7.6 million and $15.2 million, respectively. Accumulated amortization on finance lease assets as of April 3, 2020 was $1.6 million. Accumulated depreciation on capital leases as of September 27, 2019 was $5.3 million.

7. DEBT

As of April 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 April 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 April 3, 2020, for the Credit Agreement were as follows (in thousands, except rate data):

	Principal Outstanding	LIBOR Rate	Margin	Effective Interest Rate
Term loans	$669,529	0.99%	2.25%	3.24%

As of April 3, 2020, approximately $6.6 million of deferred financing costs remain unamortized, of which $6.1 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 $0.5 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.

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As of April 3, 2020, we had $160.0 million of borrowing capacity under our Revolving Facility, however, we would be subject to certain financial covenants if we were to borrow more than $50 million of the Revolving Facility.

As of April 3, 2020, the following remained outstanding on the Term Loans (in thousands):

	April 3, 2020
Principal balance	$	669,529
Unamortized discount	(2,809		)
Unamortized deferred financing costs	(6,113		)
Total term loans	660,607
Current portion	6,885
Long-term, less current portion	$	653,722

As of April 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)	$	3,442
2021	6,885
2022	6,885
2023	6,885
2024	645,432
Total	$	669,529

The fair value of the Term Loans was estimated to be approximately $595.9 million as of April 3, 2020, and was determined using Level 2 inputs, including a quoted rate from a financial institution.

8. 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-year periods.

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 (“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.

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Included in our condensed consolidated balance sheets were the following amounts related to operating and finance lease assets and liabilities (in thousands):

	April 3, 2020		September 27, 2019		Consolidated Balance Sheet Classification
Assets:
Operating lease ROU assets	$	33,807	$	—	Other long-term assets
Finance lease assets	34,667		—		Property and equipment, net
Capital lease and financed assets	—		40,442		Property and equipment, net
Total lease assets	$	68,474	$	40,442
Liabilities:
Current:
Operating lease liabilities	$	7,613	$	—	Accrued liabilities
Finance lease liabilities	1,596		—		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	32,052		—		Other long-term liabilities
Finance lease liabilities	29,697		—		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	$	70,958	$	30,590

The weighted-average remaining lease terms and weighted-average discount rates for operating and finance leases as of April 3, 2020 were as follows:

	April 3, 2020
Weighted-average remaining lease term (in years):
Operating leases	6.69
Finance leases	17.17
Weighted-average discount rate:
Operating leases	6.36	%
Finance leases	6.72	%

The components of lease expense were as follows (in thousands):

	Three Months Ended			Six Months Ended
	April 3, 2020
Finance lease cost:
Amortization of lease assets	$	796		$	1,573
Interest on lease liabilities	532			1,116
Total finance lease cost	$	1,328		$	2,689
Operating lease cost	$	2,448		$	4,931
Variable lease cost	811			1,188
Short-term lease cost	185			270
Sublease income	(83		)	(325		)

Cash paid for amounts included in the measurement of lease liabilities were as follows (in thousands):

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	Six Months Ended
	April 3, 2020
Cash paid for amounts included in measurement of lease liabilities:
Operating cash flows from operating leases	$	4,486
Operating cash flows from finance leases	1,116
Financing cash flows from finance leases	871
Non-cash activities:
Operating lease right-of-use assets obtained in exchange for new lease liabilities	$	157
Financing lease assets obtained in exchange for new lease liabilities	586

As of April 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)	$	5,028	$	1,923
2021	9,183		3,394
2022	7,427		2,836
2023	5,989		2,820
2024	5,571		2,856
2025	3,636		2,783
Thereafter	12,276		37,150
Total lease payments	49,110		53,762
Less: interest	9,445		22,469
Present value of lease liabilities	$	39,665	$	31,293

As of September 27, 2019, future minimum lease payments under our operating and capital leases were as follows as determined in accordance with the previous guidance under ASC 840 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

9. INTANGIBLE ASSETS

Amortization expense related to intangible assets is as follows (in thousands):

	Three Months Ended				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Cost of revenue	$	4,347	$	7,883	$	8,767	$	15,935
Selling, general and administrative	8,072		11,873		16,726		24,392
Total	$	12,419	$	19,756	$	25,493	$	40,327

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Intangible assets consist of the following (in thousands):

	April 3, 2020			September 27, 2019
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	(272,969		)	(247,724		)
Intangible assets — net	$	155,735		$	181,228

A summary of the activity in gross intangible assets and goodwill is as follows (in thousands):

	Intangible Assets
	Total Intangible Assets			Acquired Technology			Customer Relationships		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	—			—			—		—		93
Balance at April 3, 2020	$	428,704		$	179,434		$	245,870	$	3,400	$	314,820

As of April 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	$	24,837	46,213	33,433	26,048	15,410	6,394	$	152,335

Accumulated amortization for acquired technology and customer relationships were $143.4 million and $129.6 million, respectively, as of April 3, 2020, and $134.8 million and $112.9 million, respectively, as of September 27, 2019.

10. 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 April 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 April 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 11 - Earnings (Loss) Per Share for impact of the common stock warrants on loss per share.

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11. 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						Six Months Ended
	April 3, 2020			March 29, 2019			April 3, 2020			March 29, 2019
Numerator:
Net loss	$	(10,226	)	$	(46,204	)	$	(38,588	)	$	(69,600	)
Warrant liability gain	(8,647		)	—			(4,560		)	(3,862		)
Net loss attributable to common stockholders	$	(18,873	)	$	(46,204	)	$	(43,148	)	$	(73,462	)
Denominator:
Weighted average common shares outstanding-basic	66,522			65,531			66,375			65,404
Dilutive effect of warrants	563			—			546			206
Weighted average common shares outstanding-diluted	67,085			$	65,531		$	66,921		$	65,610
Loss per share-basic:
Net loss to common stockholders per share-basic:	$	(0.15	)	$	(0.71	)	$	(0.58	)	$	(1.06	)
Loss per share-diluted:
Net loss to common stockholders per share-diluted:	$	(0.28	)	$	(0.71	)	$	(0.64	)	$	(1.12	)

As of April 3, 2020, we had warrants outstanding which were reported as a liability on the condensed consolidated balance sheet. During the three and six months ended April 3, 2020, and the six months ended March 29, 2019, we recorded warrant liability gains of $8.6 million, $4.6 million and $3.9 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 six months ended April 3, 2020, and the six months ended March 29, 2019, we adjusted the numerator by the warrant gains of $8.6 million, $4.6 million and $3.9 million, respectively, and the denominator by the incremental shares of 562,567, 545,578 and 206,104, respectively, under the treasury stock method. The table above excludes the effects of 1,009,830 and 886,671 shares for the three and six months ended April 3, 2020, respectively, and 425,202 and 154,377 shares for the three and six months ended March 29, 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.

12. COMMITMENTS AND CONTINGENCIES

From 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 litigations. 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 April 3, 2020.

13. 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Employee related expenses	$	390	$	465	$	1,549	$	1,618
Facility related expenses	425		2,717		500		6,542
Total restructuring charges	$	815	$	3,182	$	2,049	$	8,160

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The following is a rollforward of the accrued restructuring liabilities for the six months ended April 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	1,549			500			2,049
Charges paid/settled/other	(799		)	(1,337		)	(2,136		)
Balance at April 3, 2020	$	2,299		$	141		$	2,440

(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 $0.4 million in the three months ended March 29, 2019 including $0.2 million of employee-related costs and $0.2 million of facility-related costs, and $5.4 million in the six months ended March 29, 2019, including $1.4 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 six months ended April 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 April 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 incurred restructuring charges of $2.8 million in the three months ended March 29, 2019, including $0.3 million of employee-related costs and $2.5 million of facility-related costs. This action was completed in fiscal year 2019 and no further costs will be incurred. The remaining charges are expected to be paid during fiscal year 2020.

Details of the Design Facilities Plan activities during the six months ended April 3, 2020 are as follows (in thousands):

	Facility-Related Expense
Balance at September 27, 2019	$	451
Charges and adjustments	(18		)
Charges paid/settled	(315		)
Balance at April 3, 2020	$	118

2019 Plan

During the fiscal quarter ended June 28, 2019, we committed to a plan to strategically realign, streamline and improve certain of our business and operations, including reducing our workforce by approximately 250 employees and exiting six development facilities in France, Japan, the Netherlands, Florida, Massachusetts, and Rhode Island; additionally, we made the decision to no longer invest in the design and development of optical modules and subsystems for Data Center applications (the “2019 Plan”). We incurred restructuring charges of $0.8 million in the three months ended April 3, 2020 under the 2019 Plan, including $0.4 million of employee-related costs and $0.4 million of other costs, and $2.1 million in the six months ended April 3, 2020, including $1.5 million of employee-related costs and $0.6 million of other costs. We expect to incur restructuring costs of approximately $0.1 million to $0.2 million through fiscal year 2020 as we complete this restructuring action.

Details of the 2019 Plan activities during the six months ended April 3, 2020 are as follows (in thousands):

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	Employee-Related Expense			Facility-Related Expense			Total
Balance at September 27, 2019	$	1,536		$	457		$	1,993
Charges and adjustments	1,549			558			2,107
Charges paid/settled/other	(786		)	(992		)	(1,778		)
Balance at April 3, 2020	$	2,299		$	23		$	2,322

14. SHARE-BASED COMPENSATION

Stock Plans

As of April 3, 2020, we had 16.9 million shares available for issuance under our 2012 Omnibus Incentive Plan (as Amended and Restated) (the “2012 Plan”) and 3.8 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 April 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Cost of revenue	$	995	$	841	$	1,957	$	1,514
Research and development	4,111		1,200		7,018		4,022
Selling, general and administrative	5,170		6,035		9,451		11,813
Total share-based compensation expense	$	10,276	$	8,076	$	18,426	$	17,349

As of April 3, 2020, the total unrecognized compensation costs related to ISOs, RSAs and RSUs, including awards with time-based and performance-based vesting was $61.1 million, which we expect to recognize over a weighted-average period of 2.4 years. As of April 3, 2020, total unrecognized compensation cost related to our Employee Stock Purchase Plan was $0.2 million.

Stock Options

A summary of stock option activity for the six months ended April 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 - September 27, 2019	376		$	13.58
Exercised	(18	)	6.73
Forfeited, canceled or expired	—		19.45
Options outstanding - April 3, 2020	358		$	13.93	6.84	$	1,653
Options vested and expected to vest - April 3, 2020	358		13.93		6.84	1,653
Options exercisable - April 3, 2020	73		$	10.55	2.40	$	580

Aggregate intrinsic value represents the difference between our closing stock price on April 3, 2020 and the exercise price of outstanding, in-the-money options. The total intrinsic value of options exercised was $0.3 million for the three and six months ended April 3, 2020 and $0.2 million for the three and six months ended March 29, 2019.

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Restricted Stock, Restricted Stock Units and Performance-Based Restricted Stock Units

A summary of RSAs, RSUs and PRSUs activity for the six months ended April 3, 2020 is as follows:

	Number of RSAs, RSUs and PRSUs (in thousands)		Weighted- Average Grate Date Fair Value		Aggregate Intrinsic Value (in thousands)
Balance at September 27, 2019	2,613		$	21.81	$	56,649
Granted	1,177		21.80
Vested and released	(564	)	26.98
Forfeited, canceled or expired	(238	)	23.18
Balance at April 3, 2020	2,988		$	20.72	$	55,333

RSAs, RSUs and PRSUs that vested during the six months ended April 3, 2020 and March 29, 2019 had combined fair values of $16.7 million and $9.6 million, respectively, as of the vesting date.

15. 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.

Our effective tax rates for the six months ended April 3, 2020 and March 29, 2019 were (8.3)% and (2.5)%, respectively. Income tax expense for the six months ended April 3, 2020 and March 29, 2019 was $3.0 million and $1.7 million, respectively. Our effective tax rates for the three months ended April 3, 2020 and March 29, 2019 were (18.3)% and (1.2)%, respectively. Income tax expense for the three months ended April 3, 2020 and March 29, 2019 was $1.6 million and $0.5 million, respectively. The difference between the U.S. federal statutory income tax rate of 21% and our effective tax rates for the three and six months ended April 3, 2020 and March 29, 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 April 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 April 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.

All earnings of foreign subsidiaries, other than M/A-COM Technology Solutions International Limited (“Cayman Islands subsidiary”), and M/A-COM Technology Solutions (UK) Limited (“UK subsidiary”), are considered indefinitely reinvested for the periods presented. During the fiscal quarter ended March 29, 2019, we changed our position for our Cayman Islands subsidiary to no longer have its earnings permanently reinvested which had no tax impact.

The balance of the unrecognized tax benefits remained at $0.3 million as of April 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 April 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.

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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.

On March 27, 2020, the U.S. Congress enacted the Coronavirus Aid, Relief and Economic Security Act (the “CARES Act”). The CARES Act made a technical correction to the Tax Act impacting our net operating loss (“NOL”) carryforward for the fiscal year ended September 29, 2018 by limiting it to a 20-year carryforward period, rather than having an indefinite life carryforward, which is applicable for the U.S. NOL carryforward attributes generated starting in our fiscal year ended September 27, 2019. There was no change to the ability of the NOLs generated in the fiscal year ended September 29, 2018 to offset 100% of taxable income during the 20 year carryforward period. This technical correction resulted in an increase to our valuation allowance against certain indefinite-lived NOL carryforward assets that were previously being used to offset indefinite-lived deferred tax liabilities which resulted in tax expense of approximately $1.4 million during the fiscal quarter ended April 3, 2020.

16. PREPAID AND OTHER CURRENT ASSETS

On May 10, 2018, we completed the sale and transfer of certain assets associated with our Japan-based long-range optical subassembly business, pursuant to an Asset Purchase and Intellectual Property License Agreement, dated April 30, 2018 (the “LR4 Agreement”). The LR4 Agreement provided that the buyer would pay us $5.0 million within 30 days following the closing of the transactions and further consideration for the transfer of inventory and fixed assets within 60 days of receipt of required Chinese government approvals to transfer the funds. Total expected consideration is $17.2 million.

As of April 3, 2020, we have $13.1 million of receivables, net of a $1.2 million reserve, associated with the LR4 Agreement recorded as prepaid and other current assets, which includes $11.0 million of additional consideration, $0.6 million of tax, and $1.5 million associated with a transition services agreement we entered with the buyer at the time of the sale.

17. SUPPLEMENTAL CASH FLOW INFORMATION

As of April 3, 2020 and March 29, 2019, we had $0.6 million and $2.7 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 six months ended March 29, 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):

	Six Months Ended
	April 3, 2020		March 29, 2019
Cash paid for interest	$	14,830	$	17,041
Cash paid (refunded) for income taxes	$	920	$	(1,606	)

18. GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION

We 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 revenue, gross profit and operating loss. We evaluate this assessment on an ongoing basis as facts and circumstances change and as of April 3, 2020 there were no changes to our conclusion.

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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):

	April 3, 2020		September 27, 2019
United States	$	107,892	$	116,037
Asia Pacific (1)	7,946		8,917
Other Countries (2)	9,927		7,693
Total	$	125,765	$	132,647

(1) Asia Pacific represents Taiwan, Japan, Singapore, India, Thailand, South Korea, Malaysia, the Philippines, Vietnam and China.

(2) Outside 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				Six Months Ended
Revenue	April 3, 2020		March 29, 2019		April 3, 2020	March 29, 2019
Customer A	15	%	14	%	15%	15%
Customer B	11	%	5	%	10%	6%

Accounts Receivable	April 3, 2020		September 27, 2019
Customer A	23	%	24	%
Customer C	13	%	10	%

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 six months ended April 3, 2020 our top ten customers represented 58% and 59%, respectively, of total revenue, and for the three and six months ended March 29, 2019, our top ten customers represented 55% and 56%, respectively, of total revenue.

19. RELATED-PARTY TRANSACTIONS

During the six months ended April 3, 2020, we sold $0.2 million of commercial products to Mission Microwave Technologies, LLC, a MACOM customer and an affiliate of directors John and Susan Ocampo. Together, Mr. and Mrs. Ocampo are MACOM's largest stockholders.

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion of our financial condition and results of operations should be read in conjunction with the condensed consolidated financial statements and the notes thereto included elsewhere in this Quarterly Report on Form 10-Q and our Annual Report on Form 10-K for the fiscal year ended September 27, 2019 filed with the United States Securities and Exchange Commission (“SEC”) on November 26, 2019 (the “2019 Annual Report on Form 10-K”).

In this document, the words “Company,” “we,” “our,” “us,” and similar terms refer only to MACOM Technology Solutions Holdings, Inc. and its consolidated subsidiaries, and not any other person or entity.

“MACOM,” “M/A-COM,” “M/A-COM Technology Solutions,” “M/A-COM Tech,” “Partners in RF & Microwave” and related logos are trademarks of MACOM Technology Solutions Holdings, Inc. All other brands and names listed are trademarks of their respective owners.

Cautionary Note Regarding Forward-Looking Statements

This Item 2, “Management's Discussion and Analysis of Financial Condition and Results of Operations” and other sections of this Quarterly Report on Form 10-Q contain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. In addition, we may make other written and oral communications from time to time that contain such statements. Forward-looking statements include statements as to our strategic plans and priorities, anticipated drivers of future

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revenue growth, industry trends, the potential impacts of COVID-19 on our future operations and results, our plans for use of our cash and cash equivalents, short-term investments and revolving credit facility, our ability to meet working capital requirements and other matters that do not relate strictly to historical facts. These statements are often identified by the use of words such as “anticipates,” “believes,” “could,” “continue,” “estimates,” “expects,” “intends,” “may,” “plans,” “potential,” “predicts,” “projects,” “seeks,” “should,” “targets,” “will,” “would” and similar expressions or variations. These statements are based on management's beliefs and assumptions as of the date of this Quarterly Report on Form 10-Q, based on information currently available to us. Such forward-looking statements are subject to risks, uncertainties and other factors that could cause actual results to differ materially from future results expressed or implied by such forward-looking statements. Important factors that could cause actual results to differ materially from the forward-looking statements include, among others, the risks described in the section entitled “Risk Factors” in this Quarterly Report on Form 10-Q, our quarterly report on Form 10-Q for the fiscal quarter ended January 3, 2020 filed with the SEC on January 29, 2020 and our Annual Report on Form 10-K for the fiscal year ended September 27, 2019 filed with the SEC on November 26, 2019. We caution the reader to carefully consider such factors. Furthermore, such forward-looking statements speak only as of the date of this Quarterly Report on Form 10-Q. Except as required by law, we undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements.

Overview

We design and manufacture semiconductor products for Telecommunications (“Telecom”), Industrial and Defense (“I&D”) and Data Center applications. Headquartered in Lowell, Massachusetts, we have more than 65 years of application expertise, with silicon, gallium arsenide and indium phosphide fabrication, manufacturing, assembly and test, and operational facilities throughout North America, Europe and Asia. We design, develop and manufacture differentiated, high-value products for customers who demand high performance, quality and reliability. We offer a broad portfolio of thousands of standard and custom devices, which include integrated circuits (“IC”), multi-chip modules (“MCM”), diodes, amplifiers, switches and switch limiters, passive and active components and complete subsystems, across dozens of product lines serving over 8,000 end-customers in three primary markets. Our semiconductor products are electronic components that our customers incorporate into larger electronic systems, such as, wireless basestations, high capacity optical networks, radar, medical systems and test and measurement. Our primary markets are: (1) Telecom, which includes carrier infrastructure like long-haul/metro, 5G and FTTx/PON, among others; (2) I&D, which includes military and commercial radar, RF jammers, electronic countermeasures, communication data links, satellite communications and multi-market applications, which include industrial, medical, test and measurement and scientific applications; and (3) Data Center, enabled by our broad portfolio of analog ICs and photonic components for high speed optical module customers.

COVID-19 Impact

COVID-19, the disease caused by the most recently discovered coronavirus, has spread throughout areas of the world where we operate and resulted in authorities implementing numerous measures to try to contain the virus. As a result of these measures and the spread of COVID-19, we have modified our business practices and may further modify our practices as required, or as we determine appropriate. While these measures, as well as other disruptions, have impacted our operations, the operations of our customers and those of our respective vendors and suppliers, such impacts did not, as of the fiscal quarter ended April 3, 2020, have a material impact on our supply, our demand or our consolidated operating results.

Given the significant economic uncertainty and volatility created by the pandemic, it is difficult to predict the nature and extent of impacts on the demand for our products. The continued spread of COVID-19 could cause an overall economic slowdown or recession and could result in adverse impacts such as increased credit and collectibility risks, adverse impacts on our suppliers, asset impairments, declines in the value of our financial instruments and adverse impacts on our capital resources. The degree to which the COVID-19 pandemic impacts our future business, financial condition, results of operations, liquidity and cash flows will depend on future developments, which are highly uncertain and cannot be accurately predicted, including the duration and spread of the outbreak, its severity, actions taken to contain the virus or treat its impact, how quickly and to what extent normal operating conditions can resume, and the economic impact on local, regional, national and international markets.

For additional information on risk factors that could impact our future results, please refer to “Risk Factors” in Part II, Item 1A of this Quarterly Report on Form 10-Q.

Description of Our Revenue

Revenue. Our revenue is derived from sales of high-performance RF, microwave, millimeter wave, optical and photonic semiconductor products. We design, integrate, manufacture and package differentiated, semiconductor-based products that we sell to customers through our direct sales organization, our network of independent sales representatives and our distributors. We believe the primary drivers of our future revenue growth will include:

• engaging early with our lead customers to develop custom and standard products;

• leveraging our core strength and leadership position in standard, catalog products that service all of our end applications;

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• increasing content of our semiconductor solutions in customers’ systems through cross-selling our product lines;

• introducing new products using advanced technologies, added features, higher levels of integration and improved performance; and

• continued growth in the demand for high-performance analog, digital and optical semiconductors in our three primary markets in particular.

Our core strategy is to develop and innovate high-performance products that address our customers’ most difficult technical challenges in our primary markets: Telecom, I&D and Data Center.

We expect our revenue in the Telecom market to be driven by 5G deployments, with continued upgrades and expansion of communications equipment, and increasing adoption of our high-performance RF, millimeter wave, optical and photonic components.

We expect our revenue in the I&D market to be driven by the expanding product portfolio that we offer which services applications such as test and measurement, satellite communications, civil and military radar, industrial, scientific and medical applications, further supported by growth in applications for our multi-market catalog products.

We expect our revenue in the Data Center market to be driven by the adoption of cloud-based services and the upgrade of data center architectures, to 100G, 200G and 400G interconnects, which we expect will drive adoption of higher speed optical and photonic components.

Critical Accounting Policies and Estimates

Our discussion and analysis of our financial condition and results of operations are based on our condensed consolidated financial statements. The preparation of financial statements, in conformity with U.S. GAAP, requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. By their nature, these estimates and judgments are subject to an inherent degree of uncertainty and could be material if our actual or expected experience were to change unexpectedly. On an ongoing basis, we re-evaluate our estimates and judgments.

Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and financial markets. We are not aware of any specific event or circumstance that would require updates to our estimates or judgments or require us to revise the carrying value of our assets or liabilities as of April 30, 2020, the date of filing of this Quarterly Report on Form 10-Q with the SEC. These estimates may change as new events occur and additional information is obtained. Actual results could differ materially from these estimates under different assumptions or conditions.

We base our estimates and judgments on our historical experience and on other assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making the judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates and material effects on our operating results and financial position may result. The accounting policies which our management believes involve the most significant application of judgment or involve complex estimation, are inventories and associated reserves; goodwill and long-lived asset valuations and associated impairment assessments; revenue reserves; and share-based compensation valuations.

Significant management judgment is required in our valuation of long-lived asset groups when assessing for potential impairment. These analyses are based on the creation of forecasts of future operating results that are used in the valuation, including estimation of (i) future cash flows, (ii) the long-term rate of growth for our business, (iii) the useful life over which cash flows will occur, (iv) terminal values, if applicable and (v) the determination of our weighted average cost of capital, which is used to determine the discount rate. It is possible that these forecasts may change and our projections included in our forecasts of future results may prove to be inaccurate. If our actual results, or the forecasts and estimates used in future impairment analyses, are lower than the original estimates used to assess the recoverability of these assets, we could incur impairment charges. Our forecasts could be adversely affected by, but not limited to, a change in strategy, the outcome of development activities or slowdown in our primary markets. The value of our long-lived asset groups could also be impacted by future adverse changes such as a decline in the valuation of technology company stocks, including the valuation of our common stock, or a significant slowdown in the worldwide economy or in the semiconductor industry.

For additional information related to these and other accounting policies refer to Note 2 - Summary of Significant Accounting Policies to our Consolidated Financial Statements included in Item 8 of Part II, “Financial Statements and Supplementary Data,” of the 2019 Annual Report on Form 10-K and Note 1 - Summary of Significant Accounting Policies to our Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q.

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Results of Operations

The following table sets forth, for the periods indicated, our statements of operations data (in thousands):

	Three Months Ended						Six Months Ended
	April 3, 2020			March 29, 2019			April 3, 2020			March 29, 2019
Revenue	$	126,424		$	128,465		$	245,521		$	279,154
Cost of revenue (1)	63,054			71,135			123,947			145,199
Gross profit	$	63,370		$	57,330		$	121,574		$	133,955
Operating expenses:
Research and development (1)	35,830			42,361			70,988			85,885
Selling, general and administrative (1)	31,994			41,998			64,334			84,518
Restructuring charges (2)	815			3,182			2,049			8,160
Total operating expenses	$	68,639		$	87,541		$	137,371		$	178,563
Loss from operations	$	(5,269	)	$	(30,211	)	$	(15,797	)	$	(44,608	)
Other expense:
Warrant liability gain (expense) (3)	8,647			(1,607		)	4,560			3,862
Interest expense	(7,672		)	(9,402		)	(16,293		)	(18,175		)
Other expense (4)	(4,352		)	(4,440		)	(8,092		)	(9,010		)
Total other expense net	$	(3,377	)	$	(15,449	)	$	(19,825	)	$	(23,323	)
Loss before income taxes	(8,646		)	(45,660		)	(35,622		)	(67,931		)
Income tax expense	1,580			544			2,966			1,669
Net loss	$	(10,226	)	$	(46,204	)	$	(38,588	)	$	(69,600	)

(1) Includes (a) Amortization expense related to intangible assets arising from acquisitions and (b) Share-based compensation expense included in our condensed consolidated statements of operations as set forth below (in thousands):

	Three Months Ended				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
(a) Intangible amortization expense:
Cost of revenue	$	4,347	$	7,883	$	8,767	$	15,935
Selling, general and administrative	8,072		11,873		16,726		24,392
(b) Share-based compensation expense:
Cost of revenue	$	995	$	841	$	1,957	$	1,514
Research and development	4,111		1,200		7,018		4,022
Selling, general and administrative	5,170		6,035		9,451		11,813

(2) See Note 13 - Restructurings to our Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q.

(3) Represents changes in the fair value of common stock warrants recorded as liabilities and adjusted each reporting period to fair value. See Note 10 - Stockholders’ Equity to our Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q for additional information.

(4) Includes $5.3 million and $9.1 million of losses for the three and six months ended April 3, 2020, respectively, and $4.4 million and $9.0 million of losses for the three and six months ended March 29, 2019, respectively, associated with our equity method investment. See Note 3 - Investments to our Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q for additional information.

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The following table sets forth, for the periods indicated, our statements of operations data expressed as a percentage of our revenue: 

	Three Months Ended				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Revenue	100.0	%	100.0	%	100.0	%	100.0	%
Cost of revenue	49.9		55.4		50.5		52.0
Gross profit	50.1		44.6		49.5		48.0
Operating expenses:
Research and development	28.3		33.0		28.9		30.8
Selling, general and administrative	25.3		32.7		26.2		30.3
Restructuring charges	0.6		2.5		0.8		2.9
Total operating expenses	54.3		68.1		56.0		64.0
Loss from operations	(4.2	)	(23.5	)	(6.4	)	(16.0	)
Other expense:
Warrant liability gain (expense)	6.8		(1.3	)	1.9		1.4
Interest expense	(6.1	)	(7.3	)	(6.6	)	(6.5	)
Other expense, net	(3.4	)	(3.5	)	(3.3	)	(3.2	)
Total other expense net	(2.7	)	(12.0	)	(8.1	)	(8.4	)
Loss before income taxes	(6.8	)	(35.5	)	(14.5	)	(24.3	)
Income tax expense	1.2		0.4		1.2		0.6
Net loss	(8.1	)%	(36.0	)%	(15.7	)%	(24.9	)%

Comparison of the Three and Six Months Ended April 3, 2020 to the Three and Six Months Ended March 29, 2019

Revenue. Our revenue decreased by $2.0 million, or 1.6%, to $126.4 million for the three months ended April 3, 2020, from $128.5 million for the three months ended March 29, 2019, and our revenue decreased by $33.6 million, or 12.0%, for the six months ended April 3, 2020, from $279.2 million for the six months ended March 29, 2019.

Revenue from our primary markets, the percentage of change between the periods presented, and revenue by primary markets expressed as a percentage of total revenue in the periods presented were (in thousands, except percentages):

		Three Months Ended								Six Months Ended
		April 3, 2020			March 29, 2019		% Change			April 3, 2020			March 29, 2019		% Change
Telecom	$	51,648		$	47,337		9.1	%	$	97,249		$	97,496		(0.3	)%
Industrial & Defense		48,069			50,471		(4.8	)%		98,552			107,754		(8.5	)%
Data Center		26,707			30,657		(12.9	)%		49,720			73,904		(32.7	)%
Total	$	126,424		$	128,465		(1.6	)%	$	245,521		$	279,154		(12.0	)%
Telecom		40.9	%		36.8	%				39.6	%		34.9	%
Industrial & Defense		38.0	%		39.3	%				40.1	%		38.6	%
Data Center		21.1	%		23.9	%				20.3	%		26.5	%
Total		100.0	%		100.0	%				100.0	%		100.0	%

In the three months ended April 3, 2020, our Telecom revenues increased by $4.3 million, or 9.1%, compared to the three months ended March 29, 2019. In the six months ended April 3, 2020, our Telecom revenues decreased by $0.2 million or 0.3%, compared to the six months ended March 29, 2019. The increase for the three months ended April 3, 2020 was primarily driven by increased sales of carrier-based optical semiconductor products including those targeted for 5G applications offset by lower sales of products targeting fiber to the home.

In the three and six months ended April 3, 2020, our I&D market revenue decreased by $2.4 million, or 4.8%, and $9.2 million, or 8.5%, respectively, compared to the three and six months ended March 29, 2019. The decrease in the three and six months

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ended April 3, 2020 was primarily related to lower sales of certain legacy product lines sold through distribution and the timing of shipments for certain defense-related programs.

In the three and six months ended April 3, 2020, our Data Center market revenue decreased by $4.0 million, or 12.9%, and $24.2 million, or 32.7%, respectively, compared to the three and six months ended March 29, 2019. The decrease in revenue for the three and six months ended April 3, 2020 was primarily due to lower sales to distributors primarily associated with optical products and lasers as well as $7.0 million of licensing revenue recognized in the three months ended March 29, 2019.

Gross profit. Gross margin was 50.1% and 49.5% for the three and six months ended April 3, 2020, respectively, and 44.6% and 48.0% for the three and six months ended March 29, 2019, respectively. Gross profit was $63.4 million and $121.6 million for the three and six months ended April 3, 2020, respectively, and $57.3 million and $134.0 million for the three and six months ended March 29, 2019, respectively. Gross profit increased for the three months ended April 3, 2020 as compared to the three months ended March 29, 2019 primarily as a result of lower inventory reserve and intangible amortization expenses. The lower gross profit for the six months ended April 3, 2020 as compared to the six months ended March 29, 2019 was primarily impacted by lower revenue partially offset by lower inventory reserve and intangible amortization expenses.

Research and development. Research and development expense decreased by $6.5 million, or 15.4%, to $35.8 million, or 28.3% of our revenue, for the three months ended April 3, 2020, compared with $42.4 million, or 33.0% of our revenue, for the three months ended March 29, 2019. Research and development expense decreased by $14.9 million, or 17.3%, to $71.0 million, or 28.9% of our revenue, for the six months ended April 3, 2020, compared with $85.9 million, or 30.8% of our revenue, for the six months ended March 29, 2019. Research and development expense has decreased in the fiscal 2020 period primarily as a result of the strategic realignment of our business and operations resulting in lower compensation costs and research and development related activity.

Selling, general and administrative. Selling, general and administrative expense decreased by $10.0 million, or 23.8%, to $32.0 million, or 25.3% of our revenue, for the three months ended April 3, 2020, compared with $42.0 million, or 32.7% of our revenue, for the three months ended March 29, 2019. Selling, general and administrative expense decreased by $20.2 million, or 23.9%, to $64.3 million, or 26.2% of our revenue, for the six months ended April 3, 2020, compared with $84.5 million, or 30.3% of our revenue, for the six months ended March 29, 2019. Selling, general and administrative expense decreased in the three and six months ended April 3, 2020 primarily due to lower intangible amortization expense and lower compensation-related costs associated with the 2019 Plan (as defined below).

Restructuring charges. Restructuring charges totaled $0.8 million and $3.2 million for the three months ended April 3, 2020 and March 29, 2019, respectively, and $2.0 million and $8.2 million for the six months ended April 3, 2020 and March 29, 2019, respectively. During the fiscal quarter ended June 28, 2019, we committed to a plan to strategically realign, streamline and improve certain of our business and operations, including reducing our workforce by approximately 250 employees or 20% and exiting six development facilities. We also committed to reducing certain development activities for one of our product lines and we made the decision to no longer invest in the design and development of optical modules and subsystems for Data Center applications (the “2019 Plan”). Restructuring charges for the three and six months ended April 3, 2020 are primarily related to the 2019 Plan. We expect to incur restructuring costs of approximately $0.1 million to $0.2 million through fiscal year 2020 as we complete this restructuring action. We expect annual expense savings of approximately $50 million dollars once the 2019 Plan is fully implemented.

Restructuring expense for the three and six months ended March 29, 2019 relates to the Ithaca Plan and Design Facilities Plan actions which were completed in fiscal year 2019 and no further costs will be incurred.

For additional information refer to Note 13 - Restructuring to our Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q.

Warrant liability. Our warrant liability resulted in a gain of $8.6 million and $4.6 million for the three and six months ended April 3, 2020, respectively, compared to an expense of $1.6 million and a gain of $3.9 million for the three and six months ended March 29, 2019, respectively. The difference between periods was driven by a change in the estimated fair value of common stock warrants we issued in December 2010, primarily driven by the change in the underlying price of our common stock, which is recorded as a liability at fair value. 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.

Provision for income taxes. Our effective tax rates for the three months ended April 3, 2020 and March 29, 2019 were (18.3)% and (1.2)%, respectively. Income tax expense for the three months ended April 3, 2020 and March 29, 2019 was $1.6 million and $0.5 million, respectively. Our effective tax rates for the six months ended April 3, 2020 and March 29, 2019 were (8.3)% and (2.5)%, respectively. Income tax expense for the six months ended April 3, 2020 and March 29, 2019 was $3.0 million and $1.7 million, respectively. Our estimated annual effective tax rate for the year ended October 2, 2020 is expected to be (17.9)%, adjusted for discrete taxation matters arising during the interim periods.

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The income tax expense for the three and six months ended April 3, 2020 resulted primarily from income subject to tax in foreign jurisdictions. The difference between the U.S. federal statutory income tax rate of 21% and our effective income tax rate for the three and six months ended April 3, 2020 and the three and six months ended March 29, 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, where we are not in a valuation allowance because it is expected that we will be in a taxable income position. For additional information refer to Note 15 - Income Taxes to our Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q.

Liquidity and Capital Resources

The following table summarizes our cash flow activities (in thousands):

	Six Months Ended
	April 3, 2020			March 29, 2019
Cash and cash equivalents, beginning of period	$	75,519		$	94,676
Net cash provided by operating activities	62,938			26,838
Net cash used in investing activities	(9,048		)	(23,479		)
Net cash used in financing activities	(8,210		)	(5,547		)
Foreign currency effect on cash	(464		)	189
Cash and cash equivalents, end of period	$	120,735		$	92,677

Cash Flow from Operating Activities

Our cash flow from operating activities for the six months ended months ended April 3, 2020 of $62.9 million consisted of a net loss of $38.6 million, plus cash provided by operating assets and liabilities of $33.0 million, plus adjustments to reconcile our net loss to cash provided by operating activities of $68.6 million. Adjustments to reconcile our net loss to cash provided by operating activities primarily included depreciation and intangible amortization expense of $40.2 million and share-based compensation expense of $18.4 million, a warrant liability gain of $4.6 million and a loss on minority equity investment of $9.1 million. In addition, cash provided by operating assets and liabilities was $33.0 million for the six months ended April 3, 2020, primarily driven by a decrease in accounts receivable of $16.8 million, due to improved revenue linearity throughout the quarter and timing of collections from customers, a decrease in prepaid expenses and other assets of $9.8 million and a decrease in inventories of $8.3 million.

Our cash flow from operating activities for the six months ended March 29, 2019 of $26.8 million consisted of a net loss of $69.6 million, plus cash provided by operating assets and liabilities of $11.4 million, plus adjustments to reconcile our net loss to cash provided by operating activities of $85.1 million. Adjustments to reconcile our net loss to cash provided by operating activities primarily included depreciation and intangible amortization expense of $55.5 million, share-based compensation expense of $17.3 million, loss on minority equity investments of $9.0 million and restructuring and impairment-related charges of $4.7 million, partially offset by a warrant liability gain of $3.9 million. In addition, cash provided by operating assets and liabilities was $11.4 million for the six months ended March 29, 2019, primarily driven by a decrease in accounts receivable of $10.0 million, an increase in accrued and other liabilities of $1.4 million and a decrease in inventories of $2.9 million, partially offset by a decrease in accounts payable of $4.1 million.

Cash Flow from Investing Activities

Our cash flow used in investing activities for the six months ended April 3, 2020 consisted primarily of capital expenditures of $9.0 million, purchases of $90.4 million of short-term investments, offset by proceeds of $90.0 million related to the sale of short-term investments.

Our cash flow used in used in investing activities for the six months ended March 29, 2019 consisted primarily of capital expenditures of $22.6 million, purchases of $87.0 million of short-term investments, offset by proceeds of $86.4 million related to the sale of short-term investments.

Cash Flow from Financing Activities

During the six months ended April 3, 2020, our cash used in financing activities of $8.2 million was primarily related to $5.9 million of repurchases of stock associated with employee tax withholdings on vested equity awards, $3.4 million of payments on long-term debt, and $0.9 million of payments on financing leases, offset by $2.1 million of proceeds from stock option exercises and employee stock purchases.

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During the six months ended March 29, 2019, our cash used in financing activities of $5.5 million was primarily related to $3.4 million of payments on long-term debt and $3.4 million in purchases of stock associated with employee tax withholdings, partially offset by $2.4 million of proceeds from stock option exercises and employee stock purchases.

Liquidity

As of April 3, 2020, we held $120.7 million of cash and cash equivalents, primarily deposited with financial institutions. Other than the undistributed earnings of our M/A-COM Technology Solutions International Limited and M/A-COM Technology Solutions (UK) Limited subsidiaries, the undistributed earnings of our other foreign subsidiaries are indefinitely reinvested and we do not intend to repatriate such earnings. We believe the decision to reinvest these earnings will not have a significant impact on our liquidity. As of April 3, 2020, cash held by our indefinitely reinvested foreign subsidiaries was $42.6 million, which, along with cash generated from foreign operations, is expected to be used in the support of international growth and working capital requirements as well as the repayment of certain intercompany loans. As of April 3, 2020, we also held $100.8 million of liquid short-term investments and had $160.0 million in borrowing capacity under the Revolving Facility, however, we would be subject to certain financial covenants if we were to borrow more than $50 million of the Revolving Facility.

We plan to use our remaining available cash and cash equivalents, short-term investments, and as deemed appropriate our borrowing capacity under our Revolving Facility for general corporate purposes, including working capital, or for the acquisition of or investment in complementary technologies, design teams, products and businesses. We believe that our cash and cash equivalents, short-term investments, cash generated from operations and borrowing availability under the Revolving Facility will be sufficient to meet our working capital requirements for at least the next 12 months. We may need to raise additional capital from time to time through the issuance and sale of equity or debt securities, and there is no assurance that we will be able do so on favorable terms or at all.

For additional information related to our Liquidity and Capital Resources, see Note 7 - Debt to our Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q.

Recent Accounting Pronouncements

See Note 1 - Summary of Significant Accounting Policies to our Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q for information about recent accounting pronouncements.

Off-Balance Sheet Arrangements

We did not have any off-balance sheet arrangements as of April 3, 2020.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to market risk in the ordinary course of business, which consists primarily of interest rate risk associated with our cash and cash equivalents, short-term investments and our variable rate debt, as well as foreign exchange rate risk. In addition, the value of our warrant liability is based on the underlying price of our common stock and changes in its value could significantly impact our warrant liability expense.

Interest rate risk. The primary objectives of our investment activity are to preserve principal, provide liquidity and invest excess cash for an average rate of return. To minimize market risk, we maintain our portfolio in cash and diversified investments, which may consist of corporate and agency bonds, bank deposits, money market funds and commercial paper. Certain interest rates are variable and fluctuate with current market conditions. The risk associated with fluctuating interest rates is limited to this investment portfolio. We believe that a 10% change in interest rates would not have a material impact on our financial position or results of operations. We do not enter into financial instruments for trading or speculative purposes.

 Our exposure to interest rate risk also relates to the increase or decrease in the amount of interest expense we must pay on the outstanding debt under the Credit Agreement. The interest rates on our term loans and revolving credit facility are variable interest rates based on our lender’s prime rate or a LIBOR rate, in each case plus an applicable margin, which exposes us to market interest rate risk when we have outstanding borrowings under the Credit Agreement. As of April 3, 2020, we had $669.5 million of outstanding borrowings under the Credit Agreement. Assuming our outstanding debt remains constant under the Credit Agreement for an entire year and the applicable annual interest rate increases or decreases by 1%, our annual interest expense would increase or decrease by $6.7 million.

Foreign currency risk. To date, our international customer agreements have been denominated primarily in U.S. dollars. Accordingly, we have limited exposure to foreign currency exchange rates. The functional currency of a majority of our foreign operations continues to be in U.S. dollars with the remaining operations being local currency. Increases in the value of the U.S. dollar relative to other currencies could make our products more expensive, which could negatively impact demand in certain regions. Conversely, decreases in the value of the U.S. dollar relative to other currencies could result in our products being more

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expensive to certain customers and could reduce or delay orders, or otherwise negatively affect how they do business with us. The effects of exchange rate fluctuations on the net assets of the majority of our operations are accounted for as transaction gains or losses. We believe that a change of 10% in such foreign currency exchange rates would not have a material impact on our financial position or results of operations. In the future, we may enter into foreign currency exchange hedging contracts to reduce our exposure to changes in exchange rates.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, we carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) were effective as of April 3, 2020.

Changes in Internal Control over Financial Reporting

There were no changes to our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) that occurred during our most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Limitations on Controls

Our disclosure controls and procedures and internal control over financial reporting are designed to provide reasonable assurance of achieving the desired control objectives. Our management recognizes that any control system, no matter how well designed and operated, is based upon certain judgments and assumptions and cannot provide absolute assurance that its objectives will be met. Similarly, an evaluation of controls cannot provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, have been detected.

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PART II—OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

See Note 12 - Commitments and Contingencies to our Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q for information about our legal proceedings.

ITEM 1A. RISK FACTORS

Our business involves a high degree of risk.  In addition to the other information set forth in this Quarterly Report on Form 10-Q, you should carefully consider the factors discussed in Part I, “Item 1A. Risk Factors” in our 2019 Annual Report on Form 10-K, which could materially affect our business, financial condition or future results. As of the date of this Quarterly Report on Form 10-Q, there have been no material changes in any of the risk factors described in our 2019 Annual Report on Form 10-K, except as discussed in Part II, "Item 1A. Risk Factors" in our Quarterly Report on Form 10-Q for the fiscal quarter ended January 3, 2020, as filed with the SEC on January 29, 2020 or as noted below.

The effects of the COVID-19 pandemic have materially impacted, and will likely further impact in the future, how we operate our business, and the extent to which this will impact our business, financial condition and results of operations remains uncertain.

COVID-19, the disease caused by the most recently discovered coronavirus, has spread throughout areas of the world where we operate and resulted in authorities implementing numerous measures to try to contain the virus, such as travel bans and restrictions, quarantines, stay-at-home directives and lockdowns and business shutdowns. These measures, as well as transportation disruptions, including reduced availability of air transport, port closures and increased border controls, have impacted, and will likely further impact in the future, our operations, the operations of our customers and those of our respective vendors and suppliers. There is considerable uncertainty regarding the duration and effect of existing measures and potential future measures, and depending on the magnitude of the disruptions, our business, financial condition and results of operations may be materially and adversely affected.

The conditions caused by the COVID-19 pandemic could adversely affect our customers’ ability or willingness to purchase our products, delay prospective customers’ purchasing decisions, negatively impact our supply chain, restrict our ability to provide certain products or delay the introduction of new product offerings. The spread of COVID-19 has caused us to modify our business practices, including restricting employee travel, canceling physical participation in meetings, events and conferences, requiring most employees to work from home and operating with a limited number of employees in certain locations, which could result in production delays and limit our ability to satisfy orders for certain products. We may take further actions as may be required by government authorities or that we determine are in the best interests of our employees, customers and suppliers. There is no certainty that such measures will be sufficient to mitigate the health risks posed by COVID-19, including a potential outbreak among the employees in any of our facilities, and our ability to perform critical functions, including manufacturing, could be harmed.

Moreover, the COVID-19 pandemic or any worsening of the global economic environment as a result thereof may have the effect of exacerbating other risks described in Part I, “Item 1A. Risk Factors” in our 2019 Annual Report on Form 10-K, such as those relating to fluctuations in our operating results from period to period, our reliance on a limited number of customers for a significant percentage of our revenue, our international sales and operations, order and shipment uncertainties, our dependence on third parties for products and services required for our business, our internal and external manufacturing, the limited sources for certain components, materials and services required for our business, our indebtedness, the value of our portfolio of marketable securities and the volatility of the market price of our common stock.

The degree to which the COVID-19 pandemic impacts our business, financial condition, results of operations, liquidity and cash flows will depend on future developments, which are highly uncertain and cannot be predicted, including the duration and spread of the outbreak, its severity, actions taken to contain the virus or treat its impact and how quickly and to what extent normal operating conditions can resume. Furthermore, while the potential impacts of the COVID-19 pandemic may be difficult to assess or predict, it has resulted in a significant disruption of global financial markets, and any resulting recession or long-term market correction could materially impact the value of our common stock, and could result in adverse impacts such as increased credit and collectibility risks, adverse impacts on our suppliers, asset impairments, declines in the value of our financial instruments and adverse impacts on our capital resources. There are no comparable recent events that provide guidance as to the effect the COVID-19 pandemic may have, and, as a result, the ultimate impact of the outbreak on our business, financial condition and results of operations is highly uncertain and subject to change.

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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Issuer Purchases of Equity Securities

The following table presents information with respect to purchases of common stock we made during the fiscal quarter ended April 3, 2020. 

Period	Total Number of Shares (or Units) Purchased (1)	Average Price Paid per Share (or Unit)		Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs
January 4, 2020-January 31, 2020	—	$	—	—	—
February 1, 2020-February 28, 2020	197,625	29.63		—	—
February 29, 2020-April 3, 2020	—	—		—	—
Total	197,625	$	29.63	—	—

(1) We employ “withhold to cover” as a tax payment method for vesting of restricted stock awards for our employees, pursuant to which, we withheld from employees the shares noted in the table above to cover tax withholding related to the vesting of their awards. The average prices listed in the above table are averages of the fair market prices at which we valued shares withheld for purposes of calculating the number of shares to be withheld.

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ITEM 6. EXHIBITS

Exhibit Number	Description
3.1	Fifth Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to our Current Report on Form 8-K filed on June 2, 2016).
3.2	Third Amended and Restated Bylaws (incorporated by reference to Exhibit 3.2 to our Current Report on Form 8-K filed on June 2, 2016).
31.1	Certification of Principal Executive Officer Required Under Rule 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended.
31.2	Certification of Principal Financial Officer Required Under Rule 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended.
32.1	Certification of Principal Executive Officer and Principal Financial Officer Required Under Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended, and 18 U.S.C. §1350.
101	The following material from the Quarterly Report on Form 10-Q of MACOM Technology Solutions Holdings, Inc. for the fiscal quarter ended April 3, 2020, formatted in Inline XBRL: (i) Consolidated Balance Sheets, (ii) Consolidated Statements of Operations, (iii) Consolidated Statements of Comprehensive Loss, (iv) Consolidated Statements of Stockholders’ Equity, (v) Consolidated Statements of Cash Flows, (vi) Notes to Consolidated Financial Statements and (vii) document and entity information, tagged as blocks of text and including detailed tags.
104	The cover page for the Quarterly Report on Form 10-Q of MACOM Technology Solutions Holdings, Inc. for the fiscal quarter ended April 3, 2020, formatted in Inline XBRL and included as Exhibit 101

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Quarterly Report on Form 10-Q to be signed on its behalf by the undersigned thereunto duly authorized.

	MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
Dated: April 30, 2020	By:	/s/ Stephen G. Daly
		Stephen G. Daly
		President and Chief Executive Officer (Principal Executive Officer)
Dated: April 30, 2020	By:	/s/ John F. Kober
		John F. Kober
		Senior Vice President and Chief Financial Officer (Principal Accounting and Principal Financial Officer)

EX-31.1

Exhibit 31.1

CERTIFICATION OF THE PRESIDENT AND CEO PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Stephen G. Daly, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of MACOM Technology Solutions Holdings, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a–15(f) and 15d–15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	April 30, 2020
	/s/ Stephen G. Daly
	Stephen G. Daly
	President and Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF THE CFO PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, John F. Kober, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of MACOM Technology Solutions Holdings, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a–15(f) and 15d–15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	April 30, 2020
	/s/ John F. Kober
	John F. Kober
	SVP and Chief Financial Officer
	(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of MACOM Technology Solutions Holdings, Inc. (the “Company”) on Form 10-Q for the quarter ended April 3, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Stephen G. Daly, as President and Chief Executive Officer of the Company, and John F. Kober, as SVP and Chief Financial Officer of the Company, each hereby certifies, pursuant to and solely for the purpose of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company for the period covered by the Report.

Date:	April 30, 2020
By:	/s/ Stephen G. Daly
	Stephen G. Daly
	President and Chief Executive Officer
	(Principal Executive Officer)
By:	/s/ John F. Kober
	John F. Kober
	SVP and Chief Financial Officer
	(Principal Financial Officer)

XML

Geographic and Significant Customer Information - Summary of Different Geographic Regions (Details) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets by Geographic Region	$ 125,765	$ 132,647
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets by Geographic Region	107,892	116,037
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets by Geographic Region	7,946	8,917
Other Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets by Geographic Region	$ 9,927	$ 7,693

XML

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Investments, Owned, Federal Income Tax Note [Line Items]
Effective Income Tax Rate Reconciliation, Percent	(18.30%)	(1.20%)	(8.30%)	(2.50%)
Income tax expense	$ 1,580	$ 544	$ 2,966	$ 1,669
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

XML

Share-Based Compensation - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 10,276	$ 8,076	$ 18,426	$ 17,349
Compensation cost not yet recognized	$ 61,100		$ 61,100
Unrecognized compensation cost period for recognition			2 years 4 months 24 days
Stock option exercises (in shares)			18
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			$ 16,700	$ 9,600
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)	16,900		16,900
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Available for grant (in shares)	3,800		3,800
Unrecognized compensation cost for Employee Stock Purchase Plan	$ 200		$ 200

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Related-Party Transactions (Details) $ in Millions	6 Months Ended
	Apr. 03, 2020 USD ($)
Director
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.2

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Debt - Schedule of Remained Outstanding on Term Loans (Details) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Debt Instrument [Line Items]
Unamortized deferred financing costs	$ (6,600)
Current portion	6,885	$ 6,885
Long-term, less current portion	653,722	$ 655,272
Term Loans
Debt Instrument [Line Items]
Principal balance	669,529
Unamortized discount	(2,809)
Unamortized deferred financing costs	(6,113)
Total term loans	660,607
Current portion	6,885
Long-term, less current portion	$ 653,722

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Leases Weighted-average Lease Term and Discount Rate (Details)	Apr. 03, 2020
Weighted Average Remaining Lease Term [Abstract]
Operating leases	6 years 8 months 8 days
Finance leases	17 years 2 months 1 day
Weighted-average discount rate:
Operating leases	6.36%
Finance leases	6.72%

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Restructurings - (Tables)

6 Months Ended

Apr. 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Employee related expenses	$	390	$	465	$	1,549	$	1,618
Facility related expenses	425		2,717		500		6,542
Total restructuring charges	$	815	$	3,182	$	2,049	$	8,160

Schedule of Restructuring Reserve by Type of Cost

	Employee-Related Expense			Facility-Related Expense			Total
Balance at September 27, 2019	$	1,536		$	457		$	1,993
Charges and adjustments	1,549			558			2,107
Charges paid/settled/other	(786		)	(992		)	(1,778		)
Balance at April 3, 2020	$	2,299		$	23		$	2,322

The following is a rollforward of the accrued restructuring liabilities for the six months ended April 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	1,549			500			2,049
Charges paid/settled/other	(799		)	(1,337		)	(2,136		)
Balance at April 3, 2020	$	2,299		$	141		$	2,440

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Revenue (Notes)

6 Months Ended

Apr. 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Revenue by Market:
Telecommunications	$	51,648	$	47,337	$	97,249	$	97,496
Industrial & Defense	48,069		50,471		98,552		107,754
Data Center	26,707		30,657		49,720		73,904
Total	$	126,424	$	128,465	$	245,521	$	279,154

	Three Months Ended				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Revenue by Geographic Region:
United States	$	56,380	$	64,714	$	110,331	$	132,832
China	40,433		32,419		77,773		77,041
Asia Pacific, excluding China (1)	20,044		20,598		38,864		44,013
Other Countries (2)	9,567		10,734		18,553		25,268
Total	$	126,424	$	128,465	$	245,521	$	279,154

(1) Asia Pacific represents Taiwan, Japan, Singapore, India, Thailand, South Korea, Australia, Malaysia, New Zealand and the Philippines.

(2) Outside the United States, no country or region represented greater than 10% of our total revenue as of the dates presented, other than China and the 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 advance consideration received from customers for contracts prior to the transfer of control to the customer, and therefore revenue is recognized upon delivery of products and services.

The following table presents the changes in contract liabilities during the six months ended April 3, 2020 (in thousands):

	April 3, 2020		September 27, 2019		$ Change			% Change
Contract liabilities	$	10,542	$	10,653	$	(111	)	(1	)%

As of April 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 decrease in contract liabilities during the six months ended April 3, 2020, as shown in the table above, was primarily from the recognition of revenue deferred for funds received prior to when certain of our customers obtain control of the product or services.

During the three and six months ended April 3, 2020, we recognized net sales of $0.1 million and $0.2 million, respectively, that were included in the contract liabilities balance at the beginning of the period.

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Debt (Tables)

6 Months Ended

Apr. 03, 2020

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

All principal amounts outstanding and interest rate information as of April 3, 2020, for the Credit Agreement were as follows (in thousands, except rate data):

	Principal Outstanding	LIBOR Rate	Margin	Effective Interest Rate
Term loans	$669,529	0.99%	2.25%	3.24%

Schedule of Remained Outstanding on Term Loans

As of April 3, 2020, the following remained outstanding on the Term Loans (in thousands):

	April 3, 2020
Principal balance	$	669,529
Unamortized discount	(2,809		)
Unamortized deferred financing costs	(6,113		)
Total term loans	660,607
Current portion	6,885
Long-term, less current portion	$	653,722

Schedule of Minimum Principal Payments under Term Loans

As of April 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)	$	3,442
2021	6,885
2022	6,885
2023	6,885
2024	645,432
Total	$	669,529

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Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (10,226)	$ (46,204)	$ (38,588)	$ (69,600)
Unrealized (loss) gain on short-term investments, net of tax	(1,376)	606	(1,297)	350
Foreign currency translation (loss) gain, net of tax	(687)	351	(935)	1,260
Other comprehensive (loss) income, net of tax	(2,063)	957	(2,232)	1,610
Total comprehensive loss	$ (12,289)	$ (45,247)	$ (40,820)	$ (67,990)

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Cover Page - shares	6 Months Ended
	Apr. 03, 2020	Apr. 24, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Apr. 03, 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		66,695,464
Entity Central Index Key	0001493594
Amendment Flag	false
Current Fiscal Year End Date	--10-02
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2020

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Inventories

6 Months Ended

Apr. 03, 2020

Inventory Disclosure [Abstract]

Inventories

INVENTORIES

Inventories consist of the following (in thousands):

	April 3, 2020		September 27, 2019
Raw materials	$	56,018	$	59,184
Work-in-process	12,006		13,799
Finished goods	31,600		34,897
Total inventory, net	$	99,624	$	107,880

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Intangible Assets

6 Months Ended

Apr. 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Cost of revenue	$	4,347	$	7,883	$	8,767	$	15,935
Selling, general and administrative	8,072		11,873		16,726		24,392
Total	$	12,419	$	19,756	$	25,493	$	40,327

Intangible assets consist of the following (in thousands):

	April 3, 2020			September 27, 2019
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	(272,969		)	(247,724		)
Intangible assets — net	$	155,735		$	181,228

A summary of the activity in gross intangible assets and goodwill is as follows (in thousands):

	Intangible Assets
	Total Intangible Assets			Acquired Technology			Customer Relationships		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	—			—			—		—		93
Balance at April 3, 2020	$	428,704		$	179,434		$	245,870	$	3,400	$	314,820

As of April 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	$	24,837	46,213	33,433	26,048	15,410	6,394	$	152,335

Accumulated amortization for acquired technology and customer relationships were $143.4 million and $129.6 million, respectively, as of April 3, 2020, and $134.8 million and $112.9 million, respectively, as of September 27, 2019.

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Restructurings

6 Months Ended

Apr. 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Employee related expenses	$	390	$	465	$	1,549	$	1,618
Facility related expenses	425		2,717		500		6,542
Total restructuring charges	$	815	$	3,182	$	2,049	$	8,160

The following is a rollforward of the accrued restructuring liabilities for the six months ended April 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	1,549			500			2,049
Charges paid/settled/other	(799		)	(1,337		)	(2,136		)
Balance at April 3, 2020	$	2,299		$	141		$	2,440

(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 $0.4 million in the three months ended March 29, 2019 including $0.2 million of employee-related costs and $0.2 million of facility-related costs, and $5.4 million in the six months ended March 29, 2019, including $1.4 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 six months ended April 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 April 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 incurred restructuring charges of $2.8 million in the three months ended March 29, 2019, including $0.3 million of employee-related costs and $2.5 million of facility-related costs. This action was completed in fiscal year 2019 and no further costs will be incurred. The remaining charges are expected to be paid during fiscal year 2020.

Details of the Design Facilities Plan activities during the six months ended April 3, 2020 are as follows (in thousands):

	Facility-Related Expense
Balance at September 27, 2019	$	451
Charges and adjustments	(18		)
Charges paid/settled	(315		)
Balance at April 3, 2020	$	118

2019 Plan

During the fiscal quarter ended June 28, 2019, we committed to a plan to strategically realign, streamline and improve certain of our business and operations, including reducing our workforce by approximately 250 employees and exiting six development facilities in France, Japan, the Netherlands, Florida, Massachusetts, and Rhode Island; additionally, we made the decision to no longer invest in the design and development of optical modules and subsystems for Data Center applications (the “2019 Plan”). We incurred restructuring charges of $0.8 million in the three months ended April 3, 2020 under the 2019 Plan, including $0.4 million of employee-related costs and $0.4 million of other costs, and $2.1 million in the six months ended April 3, 2020, including $1.5 million of employee-related costs and $0.6 million of other costs. We expect to incur restructuring costs of approximately $0.1 million to $0.2 million through fiscal year 2020 as we complete this restructuring action.

Details of the 2019 Plan activities during the six months ended April 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	1,549			558			2,107
Charges paid/settled/other	(786		)	(992		)	(1,778		)
Balance at April 3, 2020	$	2,299		$	23		$	2,322

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Supplemental Cash Flow Information

6 Months Ended

Apr. 03, 2020

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

SUPPLEMENTAL CASH FLOW INFORMATION

As of April 3, 2020 and March 29, 2019, we had $0.6 million and $2.7 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 six months ended March 29, 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):

	Six Months Ended
	April 3, 2020		March 29, 2019
Cash paid for interest	$	14,830	$	17,041
Cash paid (refunded) for income taxes	$	920	$	(1,606	)

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Revenue (Tables)

6 Months Ended

Apr. 03, 2020

Revenue [Abstract]

Disaggregation of Revenue

The following tables present our revenue disaggregated by markets and geography (in thousands):

	Three Months Ended				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Revenue by Market:
Telecommunications	$	51,648	$	47,337	$	97,249	$	97,496
Industrial & Defense	48,069		50,471		98,552		107,754
Data Center	26,707		30,657		49,720		73,904
Total	$	126,424	$	128,465	$	245,521	$	279,154

	Three Months Ended				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Revenue by Geographic Region:
United States	$	56,380	$	64,714	$	110,331	$	132,832
China	40,433		32,419		77,773		77,041
Asia Pacific, excluding China (1)	20,044		20,598		38,864		44,013
Other Countries (2)	9,567		10,734		18,553		25,268
Total	$	126,424	$	128,465	$	245,521	$	279,154

(1) Asia Pacific represents Taiwan, Japan, Singapore, India, Thailand, South Korea, Australia, Malaysia, New Zealand and the Philippines.

(2)

Outside the United States, no country or region represented greater than 10% of our total revenue as of the dates presented, other than China and the Asia Pacific region as presented above.

Contract with Customer, Asset and Liability

The following table presents the changes in contract liabilities during the six months ended April 3, 2020 (in thousands):

	April 3, 2020		September 27, 2019		$ Change			% Change
Contract liabilities	$	10,542	$	10,653	$	(111	)	(1	)%

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Leases FutureMinimumLeasePayments under Topic 840 (Details) $ in Thousands	Sep. 27, 2019 USD ($)
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

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Intangible Assets - Summary of Estimated Amortization of Intangible Assets (Details) $ in Thousands	Apr. 03, 2020 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2020 Remaining	$ 24,837
2019	46,213
2020	33,433
2021	26,048
2022	15,410
Thereafter	6,394
Total	$ 152,335

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Restructurings - Additional Information (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Apr. 03, 2020 USD ($)	Jun. 28, 2019 facility employee	Mar. 29, 2019 USD ($)	Apr. 03, 2020 USD ($)	Mar. 29, 2019 USD ($)
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				$ 2,527
Charges and adjustments	$ 815		$ 3,182	2,049	$ 8,160
Charges paid/settled/other				(2,136)
Restructuring Reserve, Ending Balance	2,440			2,440
Ithaca Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				83
Charges and adjustments	(40)		400	5,400
Charges paid/settled/other				(43)
Restructuring Reserve, Ending Balance	0			0
Design Facility Restructuring Plan
Restructuring Reserve [Roll Forward]
Charges and adjustments			2,800
2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				1,993
Charges and adjustments	800			2,107
Charges paid/settled/other				(1,778)
Restructuring Reserve, Ending Balance	2,322			2,322
Number of positions eliminated | employee		250
Number of facilities | facility		6
Minimum | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Additional restructuring costs expected during the remainder of 2019	100			100
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	390		465	1,549	1,618
Charges paid/settled/other				(799)
Restructuring Reserve, Ending Balance	2,299			2,299
Employee related expenses | Ithaca Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				13
Charges and adjustments	0		200	1,400
Charges paid/settled/other				(13)
Restructuring Reserve, Ending Balance	0			0
Employee related expenses | Design Facility Restructuring Plan
Restructuring Reserve [Roll Forward]
Charges and adjustments			300
Employee related expenses | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				1,536
Charges and adjustments	400			1,549
Charges paid/settled/other				(786)
Restructuring Reserve, Ending Balance	2,299			2,299
Facility related expenses
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				978
Charges and adjustments	425		2,717	500	$ 6,542
Charges paid/settled/other				(1,337)
Restructuring Reserve, Ending Balance	141			141
Facility related expenses | Ithaca Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				70
Charges and adjustments	(40)		200	4,000
Charges paid/settled/other				(30)
Restructuring Reserve, Ending Balance	0			0
Facility related expenses | Design Facility Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				451
Charges and adjustments			$ 2,500	(18)
Charges paid/settled/other				(315)
Restructuring Reserve, Ending Balance	118			118
Facility related expenses | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				457
Charges and adjustments				558
Charges paid/settled/other				(992)
Restructuring Reserve, Ending Balance	23			23
Other Costs | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Charges and adjustments	$ 400			$ 600

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Fair Value Fair Value - Quantitative Information Used in Fair Value Calculation of Level 3 Liabilities (Details) - Common stock warrant liability - Black-Scholes model	Apr. 03, 2020 $ / shares	Sep. 27, 2019 $ / shares
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants and rights outstanding term	21 days	1 year 2 months 12 days
Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability measurement input	0.0015	0.0171
Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability measurement input	0.621	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	18.55	21.68
Dividend rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability measurement input	0	0

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Investments - Summary of Available for Sale Investments (Details) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 102,142	$ 101,224
Gross Unrealized Holding Gains	28	113
Gross Unrealized Holding Losses	(1,323)	(111)
Aggregate Fair Value	100,847	101,226
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	29,778	29,578
Gross Unrealized Holding Gains	0	112
Gross Unrealized Holding Losses	(1,291)	(93)
Aggregate Fair Value	28,487	29,597
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	72,364	71,646
Gross Unrealized Holding Gains	28	1
Gross Unrealized Holding Losses	(32)	(18)
Aggregate Fair Value	$ 72,360	$ 71,629

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Prepaids and Other Current Assets Prepaids and Other Current Assets - USD ($) $ in Thousands		6 Months Ended
	May 10, 2018	Apr. 03, 2020	Mar. 29, 2019
Discontinued Operations and Disposal Groups [Abstract]
Sale of businesses and assets	$ 5,000	$ 363	$ 0
Other Receivables, Net, Current		13,100
Disposal Group, Including Discontinued Operation, Other Assets, Current		600
Disposal Group, Including Discontinued Operation, Consideration		17,200
Disposal Group, Including Discontinued Operation, Transition Services Reimbursement To Be Received		1,500
Allowance for Doubtful Other Receivables, Current		1,200
Disposal Group, Including Discontinued Operation, Additional Consideration Expected To Be Received		$ 11,000

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Apr. 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 (“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 total liabilities of approximately $39.0 million and a decrease to 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 six months ended April 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.

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Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Earnings Per Share [Abstract]
Fair Value Adjustment of Warrants	$ (8,647)	$ 1,607	$ (4,560)	$ (3,862)
Numerator:
Net loss	(10,226)	(46,204)	(38,588)	(69,600)
Warrant liability gain	(8,647)	0	(4,560)	(3,862)
Net loss attributable to common stockholders	$ (18,873)	$ (46,204)	$ (43,148)	$ (73,462)
Denominator:
Weighted average common shares outstanding-basic	66,522,000	65,531,000	66,375,000	65,404,000
Dilutive effect of options and warrants (in shares)	562,567	0	545,578	206,104
Weighted average common shares outstanding-diluted	67,085,000	65,531,000	66,921,000	65,610,000
Loss per share-basic:
Loss per share - basic	$ (0.15)	$ (0.71)	$ (0.58)	$ (1.06)
Loss per share-diluted:
Loss per share - diluted	$ (0.28)	$ (0.71)	$ (0.64)	$ (1.12)
Number of antidilutive shares of common stock excluded from the calculation (in shares)	1,009,830	425,202	886,671	154,377

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Leases Lease Maturity Under Topic 842 (Details) $ in Thousands	Apr. 03, 2020 USD ($)
Operating Leases
2020	$ 5,028
2021	9,183
2022	7,427
2023	5,989
2024	5,571
2025	3,636
Thereafter	12,276
Total lease payments	49,110
Less: interest	9,445
Present value of lease liabilities	39,665
Finance Leases
2020	1,923
2021	3,394
2022	2,836
2023	2,820
2024	2,856
2025	2,783
Thereafter	37,150
Total lease payments	53,762
Less: interest	22,469
Present value of lease liabilities	$ 31,293

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Intangible Assets - Summary of Activity in Intangible Assets and Goodwill (Details) $ in Thousands	6 Months Ended
	Apr. 03, 2020 USD ($)
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	93
Balance at end of period	314,820
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

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Fair Value - Changes in Assets and Liabilities with Inputs Classified within Level 3 of Fair Value (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2020	Mar. 29, 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	(4,560)	(3,861)
Purchases and Issuances	0	0
Sales and Settlements	0	0
Balance at end of period	$ 7,804	$ 9,268

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Investments - Summary of Contractual Maturities of Investments (Details) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Investments, Debt and Equity Securities [Abstract]
Less than 1 year	$ 77,862	$ 75,233
Over 1 year	22,985	25,993
Total short-term investments	$ 100,847	$ 101,226

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Supplemental Cash Flow Information - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from Equity Method Investments	$ (9,066)	$ (8,971)
Consideration on sale of business	17,200
Unpaid amounts related to purchase of assets	$ 600	2,700
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

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Share-Based Compensation - Effects of Stock-Based Compensation Expense Related to Stock-Based Awards to Employees and Non-Employees (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	$ 10,276	$ 8,076	$ 18,426	$ 17,349
Cost of Revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	995	841	1,957	1,514
Research and Development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	4,111	1,200	7,018	4,022
Selling, General and Administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	$ 5,170	$ 6,035	$ 9,451	$ 11,813

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Geographic and Significant Customer Information - Summary of Customer Concentrations as Percentage of Revenue and Accounts Receivable (Details) - Customer Concentration Risk [Member]	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Revenue
Revenue from External Customer [Line Items]
Concentration risk, percentage	58.00%	55.00%	59.00%	56.00%
Revenue | Customer A
Revenue from External Customer [Line Items]
Concentration risk, percentage	15.00%	14.00%	15.00%	15.00%
Revenue | Customer B
Revenue from External Customer [Line Items]
Concentration risk, percentage	11.00%	5.00%	10.00%	6.00%
Accounts Receivable [Member] | Customer A
Revenue from External Customer [Line Items]
Concentration risk, percentage			23.00%	24.00%
Accounts Receivable [Member] | Customer C [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage			13.00%	10.00%

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Debt Debt - Schedule of Long-term Debt Instruments (Details) - Term Loans $ in Thousands	6 Months Ended
	Apr. 03, 2020 USD ($)
Debt Instrument [Line Items]
Principal balance	$ 669,529
Effective interest rate	3.24%
LIBOR Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Margin
Debt Instrument [Line Items]
Basis spread on variable rate	0.99%

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Leases Assets and Liabilities of Lessee (Details) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Assets:
Operating lease ROU assets	$ 33,807
Finance lease assets	34,667
Capital Leased Assets, Gross		$ 40,442
Total lease assets	68,474	40,442
Current:
Operating lease liabilities	7,613
Finance lease liabilities	1,596	1,084
Long-term:
Operating lease liabilities	32,052
Finance lease liabilities	29,697	29,506
Total lease liabilities	$ 70,958	$ 30,590

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Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Income Statement [Abstract]
Revenue	$ 126,424	$ 128,465	$ 245,521	$ 279,154
Cost of revenue	63,054	71,135	123,947	145,199
Gross profit	63,370	57,330	121,574	133,955
Operating expenses:
Research and development	35,830	42,361	70,988	85,885
Selling, general and administrative	31,994	41,998	64,334	84,518
Restructuring charges	815	3,182	2,049	8,160
Total operating expenses	68,639	87,541	137,371	178,563
Loss from operations	(5,269)	(30,211)	(15,797)	(44,608)
Other expense:
Warrant liability gain (expense)	8,647	(1,607)	4,560	3,862
Interest expense, net	(7,672)	(9,402)	(16,293)	(18,175)
Other expense, net	(4,352)	(4,440)	(8,092)	(9,010)
Total other expense net	(3,377)	(15,449)	(19,825)	(23,323)
Loss before income taxes	(8,646)	(45,660)	(35,622)	(67,931)
Income tax expense	1,580	544	2,966	1,669
Net loss	$ (10,226)	$ (46,204)	$ (38,588)	$ (69,600)
Basic loss per share:
Loss per share - basic	$ (0.15)	$ (0.71)	$ (0.58)	$ (1.06)
Diluted loss per share:
Loss per share - diluted	$ (0.28)	$ (0.71)	$ (0.64)	$ (1.12)
Shares used:
Basic (in shares)	66,522	65,531	66,375	65,404
Diluted (in shares)	67,085	65,531	66,921	65,610

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Share-Based Compensation (Tables)

6 Months Ended

Apr. 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Cost of revenue	$	995	$	841	$	1,957	$	1,514
Research and development	4,111		1,200		7,018		4,022
Selling, general and administrative	5,170		6,035		9,451		11,813
Total share-based compensation expense	$	10,276	$	8,076	$	18,426	$	17,349

Share-based Payment Arrangement, Option, Activity [Table Text Block]

A summary of stock option activity for the six months ended April 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 - September 27, 2019	376		$	13.58
Exercised	(18	)	6.73
Forfeited, canceled or expired	—		19.45
Options outstanding - April 3, 2020	358		$	13.93	6.84	$	1,653
Options vested and expected to vest - April 3, 2020	358		13.93		6.84	1,653
Options exercisable - April 3, 2020	73		$	10.55	2.40	$	580

Summary of Restricted Stock, Restricted Stock Unit and Performance-based Restricted Stock Unit Activity

A summary of RSAs, RSUs and PRSUs activity for the six months ended April 3, 2020 is as follows:

	Number of RSAs, RSUs and PRSUs (in thousands)		Weighted- Average Grate Date Fair Value		Aggregate Intrinsic Value (in thousands)
Balance at September 27, 2019	2,613		$	21.81	$	56,649
Granted	1,177		21.80
Vested and released	(564	)	26.98
Forfeited, canceled or expired	(238	)	23.18
Balance at April 3, 2020	2,988		$	20.72	$	55,333

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Summary of Significant Accounting Policies

6 Months Ended

Apr. 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 (“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 total liabilities of approximately $39.0 million and a decrease to 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 six months ended April 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.

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Leases (Tables)

6 Months Ended

Apr. 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):

	April 3, 2020		September 27, 2019		Consolidated Balance Sheet Classification
Assets:
Operating lease ROU assets	$	33,807	$	—	Other long-term assets
Finance lease assets	34,667		—		Property and equipment, net
Capital lease and financed assets	—		40,442		Property and equipment, net
Total lease assets	$	68,474	$	40,442
Liabilities:
Current:
Operating lease liabilities	$	7,613	$	—	Accrued liabilities
Finance lease liabilities	1,596		—		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	32,052		—		Other long-term liabilities
Finance lease liabilities	29,697		—		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	$	70,958	$	30,590

The weighted-average remaining lease terms and weighted-average discount rates for operating and finance leases as of April 3, 2020 were as follows:

	April 3, 2020
Weighted-average remaining lease term (in years):
Operating leases	6.69
Finance leases	17.17
Weighted-average discount rate:
Operating leases	6.36	%
Finance leases	6.72	%

Lease, Cost

As of April 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)	$	5,028	$	1,923
2021	9,183		3,394
2022	7,427		2,836
2023	5,989		2,820
2024	5,571		2,856
2025	3,636		2,783
Thereafter	12,276		37,150
Total lease payments	49,110		53,762
Less: interest	9,445		22,469
Present value of lease liabilities	$	39,665	$	31,293

The components of lease expense were as follows (in thousands):

	Three Months Ended			Six Months Ended
	April 3, 2020
Finance lease cost:
Amortization of lease assets	$	796		$	1,573
Interest on lease liabilities	532			1,116
Total finance lease cost	$	1,328		$	2,689
Operating lease cost	$	2,448		$	4,931
Variable lease cost	811			1,188
Short-term lease cost	185			270
Sublease income	(83		)	(325		)

Cash paid for amounts included in the measurement of lease liabilities were as follows (in thousands):

	Six Months Ended
	April 3, 2020
Cash paid for amounts included in measurement of lease liabilities:
Operating cash flows from operating leases	$	4,486
Operating cash flows from finance leases	1,116
Financing cash flows from finance leases	871
Non-cash activities:
Operating lease right-of-use assets obtained in exchange for new lease liabilities	$	157
Financing lease assets obtained in exchange for new lease liabilities	586

Schedule of Future Minimum Lease Payments for Operating and Capital Leases

As of September 27, 2019, future minimum lease payments under our operating and capital leases were as follows as determined in accordance with the previous guidance under ASC 840 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

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Commitments and Contingencies

6 Months Ended

Apr. 03, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

From 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 litigations. 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 April 3, 2020.

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Short Term Investments

3 Months Ended

Mar. 29, 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):

	April 3, 2020
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Aggregate Fair Value
Corporate bonds	$	29,778	$	—	$	(1,291	)	$	28,487
Commercial paper	72,364		28		(32		)	72,360
Total short-term investments	$	102,142	$	28	$	(1,323	)	$	100,847

	September 27, 2019
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Aggregate Fair Value
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):

	April 3, 2020		September 27, 2019
Less than 1 year	$	77,862	$	75,233
Over 1 year	22,985		25,993
Total short-term investments	$	100,847	$	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 April 3, 2020, we held 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 April 3, 2020, the cost of this investment was $5.0 million. We evaluate this investment for impairment at each balance sheet date, and through April 3, 2020, no impairment has been recorded for this investment.

Also included in long-term investments, is a minority investment of less than 20.0% in the outstanding equity of a private company (“Compute”) that was acquired in conjunction with our divestiture of the Compute business during our fiscal year 2018. This investment value is updated quarterly based on our proportionate share of the losses or earnings, as well as any changes in Compute's equity, utilizing the equity method. During the three and six months ended April 3, 2020, we recorded losses of $5.3 million and $9.1 million, respectively, associated with this investment as other expense in our condensed consolidated statements of operations. During the three and six months ended March 29, 2019, we recorded losses of $4.4 million and $9.0 million, respectively, associated with this investment. As of April 3, 2020 and September 27, 2019, the carrying value of this investment was $9.5 million and $18.6 million, respectively.

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Leases Leases

6 Months Ended

Apr. 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-year periods.

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 (“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):

	April 3, 2020		September 27, 2019		Consolidated Balance Sheet Classification
Assets:
Operating lease ROU assets	$	33,807	$	—	Other long-term assets
Finance lease assets	34,667		—		Property and equipment, net
Capital lease and financed assets	—		40,442		Property and equipment, net
Total lease assets	$	68,474	$	40,442
Liabilities:
Current:
Operating lease liabilities	$	7,613	$	—	Accrued liabilities
Finance lease liabilities	1,596		—		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	32,052		—		Other long-term liabilities
Finance lease liabilities	29,697		—		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	$	70,958	$	30,590

The weighted-average remaining lease terms and weighted-average discount rates for operating and finance leases as of April 3, 2020 were as follows:

	April 3, 2020
Weighted-average remaining lease term (in years):
Operating leases	6.69
Finance leases	17.17
Weighted-average discount rate:
Operating leases	6.36	%
Finance leases	6.72	%

The components of lease expense were as follows (in thousands):

	Three Months Ended			Six Months Ended
	April 3, 2020
Finance lease cost:
Amortization of lease assets	$	796		$	1,573
Interest on lease liabilities	532			1,116
Total finance lease cost	$	1,328		$	2,689
Operating lease cost	$	2,448		$	4,931
Variable lease cost	811			1,188
Short-term lease cost	185			270
Sublease income	(83		)	(325		)

Cash paid for amounts included in the measurement of lease liabilities were as follows (in thousands):

	Six Months Ended
	April 3, 2020
Cash paid for amounts included in measurement of lease liabilities:
Operating cash flows from operating leases	$	4,486
Operating cash flows from finance leases	1,116
Financing cash flows from finance leases	871
Non-cash activities:
Operating lease right-of-use assets obtained in exchange for new lease liabilities	$	157
Financing lease assets obtained in exchange for new lease liabilities	586

As of April 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)	$	5,028	$	1,923
2021	9,183		3,394
2022	7,427		2,836
2023	5,989		2,820
2024	5,571		2,856
2025	3,636		2,783
Thereafter	12,276		37,150
Total lease payments	49,110		53,762
Less: interest	9,445		22,469
Present value of lease liabilities	$	39,665	$	31,293

As of September 27, 2019, future minimum lease payments under our operating and capital leases were as follows as determined in accordance with the previous guidance under ASC 840 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

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Share-Based Compensation

6 Months Ended

Apr. 03, 2020

Share-based Payment Arrangement [Abstract]

Share-Based Compensation

SHARE-BASED COMPENSATION

Stock Plans

As of April 3, 2020, we had 16.9 million shares available for issuance under our 2012 Omnibus Incentive Plan (as Amended and Restated) (the “2012 Plan”) and 3.8 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 April 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Cost of revenue	$	995	$	841	$	1,957	$	1,514
Research and development	4,111		1,200		7,018		4,022
Selling, general and administrative	5,170		6,035		9,451		11,813
Total share-based compensation expense	$	10,276	$	8,076	$	18,426	$	17,349

As of April 3, 2020, the total unrecognized compensation costs related to ISOs, RSAs and RSUs, including awards with time-based and performance-based vesting was $61.1 million, which we expect to recognize over a weighted-average period of 2.4 years. As of April 3, 2020, total unrecognized compensation cost related to our Employee Stock Purchase Plan was $0.2 million.

Stock Options

A summary of stock option activity for the six months ended April 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 - September 27, 2019	376		$	13.58
Exercised	(18	)	6.73
Forfeited, canceled or expired	—		19.45
Options outstanding - April 3, 2020	358		$	13.93	6.84	$	1,653
Options vested and expected to vest - April 3, 2020	358		13.93		6.84	1,653
Options exercisable - April 3, 2020	73		$	10.55	2.40	$	580

Aggregate intrinsic value represents the difference between our closing stock price on April 3, 2020 and the exercise price of outstanding, in-the-money options. The total intrinsic value of options exercised was $0.3 million for the three and six months ended April 3, 2020 and $0.2 million for the three and six months ended March 29, 2019.

Restricted Stock, Restricted Stock Units and Performance-Based Restricted Stock Units

A summary of RSAs, RSUs and PRSUs activity for the six months ended April 3, 2020 is as follows:

	Number of RSAs, RSUs and PRSUs (in thousands)		Weighted- Average Grate Date Fair Value		Aggregate Intrinsic Value (in thousands)
Balance at September 27, 2019	2,613		$	21.81	$	56,649
Granted	1,177		21.80
Vested and released	(564	)	26.98
Forfeited, canceled or expired	(238	)	23.18
Balance at April 3, 2020	2,988		$	20.72	$	55,333

RSAs, RSUs and PRSUs that vested during the six months ended April 3, 2020 and March 29, 2019 had combined fair values of $16.7 million and $9.6 million, respectively, as of the vesting date.

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Geographic and Significant Customer Information

6 Months Ended

Apr. 03, 2020

Segment Reporting [Abstract]

Geographic and Significant Customer Information

GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION

We 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 revenue, gross profit and operating loss. We evaluate this assessment on an ongoing basis as facts and circumstances change and as of April 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):

	April 3, 2020		September 27, 2019
United States	$	107,892	$	116,037
Asia Pacific (1)	7,946		8,917
Other Countries (2)	9,927		7,693
Total	$	125,765	$	132,647

(1) Asia Pacific represents Taiwan, Japan, Singapore, India, Thailand, South Korea, Malaysia, the Philippines, Vietnam and China.

(2) Outside 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				Six Months Ended
Revenue	April 3, 2020		March 29, 2019		April 3, 2020	March 29, 2019
Customer A	15	%	14	%	15%	15%
Customer B	11	%	5	%	10%	6%

Accounts Receivable	April 3, 2020		September 27, 2019
Customer A	23	%	24	%
Customer C	13	%	10	%

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 six months ended April 3, 2020 our top ten customers represented 58% and 59%, respectively, of total revenue, and for the three and six months ended March 29, 2019, our top ten customers represented 55% and 56%, respectively, of total revenue.

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Short Term Investments (Tables)

6 Months Ended

Apr. 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):

	April 3, 2020
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Aggregate Fair Value
Corporate bonds	$	29,778	$	—	$	(1,291	)	$	28,487
Commercial paper	72,364		28		(32		)	72,360
Total short-term investments	$	102,142	$	28	$	(1,323	)	$	100,847

	September 27, 2019
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Aggregate Fair Value
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):

	April 3, 2020		September 27, 2019
Less than 1 year	$	77,862	$	75,233
Over 1 year	22,985		25,993
Total short-term investments	$	100,847	$	101,226

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Property Plant and Equipment - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 283,093	$ 281,834
Less accumulated depreciation and amortization	(157,328)	(149,187)
Property and equipment, net	125,765	132,647
Construction in process
Property, Plant and Equipment [Line Items]
Total property and equipment	14,067	24,848
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	191,660	175,696
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	19,241	12,962
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	3,736	3,716
Computer equipment and software
Property, Plant and Equipment [Line Items]
Total property and equipment	18,277	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

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Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 101,338	$ 101,487
Total liabilities measured at fair value	7,804	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	7,804	12,364
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	28,487	29,597
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	491	261
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	72,360	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	491	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	491	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	100,847	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	28,487	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	72,360	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	7,804	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	7,804	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

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Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019	Sep. 27, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 126,424	$ 128,465	$ 245,521	$ 279,154
Contract liabilities	10,542		10,542		$ 10,653
Increase (decrease) in contract with customer liability			(111)
Contract liability noncurrent	3,500		3,500		$ 8,500
Amounts included in contract liabilities at the beginning of the period	100		$ 200
Net change in contract liabilities (percentage)			(1.00%)
Industrial & Defense
Disaggregation of Revenue [Line Items]
Revenue	48,069	50,471
Data Center
Disaggregation of Revenue [Line Items]
Revenue	26,707	30,657
Telecom
Disaggregation of Revenue [Line Items]
Revenue	51,648	47,337
United States
Disaggregation of Revenue [Line Items]
Revenue	56,380	64,714	$ 110,331	132,832
China
Disaggregation of Revenue [Line Items]
Revenue	40,433	32,419	77,773	77,041
Asia Pacific, excluding China
Disaggregation of Revenue [Line Items]
Revenue	20,044	20,598	38,864	44,013
Other Countries
Disaggregation of Revenue [Line Items]
Revenue	$ 9,567	$ 10,734	18,553	25,268
Industrial & Defense
Disaggregation of Revenue [Line Items]
Revenue			98,552	107,754
Data Center
Disaggregation of Revenue [Line Items]
Revenue			49,720	73,904
Telecom
Disaggregation of Revenue [Line Items]
Revenue			$ 97,249	$ 97,496

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Intangible Assets - Summary of Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Finite-Lived Intangible Assets [Line Items]
Total	$ 12,419	$ 19,756	$ 25,493	$ 40,327
Cost of Revenue
Finite-Lived Intangible Assets [Line Items]
Total	4,347	7,883	8,767	15,935
Selling, General and Administrative
Finite-Lived Intangible Assets [Line Items]
Total	$ 8,072	$ 11,873	$ 16,726	$ 24,392

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Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 272,969	$ 247,724
Developed technology
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	143,400	134,800
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 129,600	$ 112,900

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Property Plant and Equipment - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019	Sep. 27, 2019
Property, Plant and Equipment [Abstract]
Depreciation and amortization expense	$ 7,300	$ 7,600	$ 14,700	$ 15,200
Accumulated depreciation	$ 157,328		$ 157,328		$ 149,187

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Debt - Schedule of Minimum Principal Payments under Term Loans (Details) - Term Loans $ in Thousands	Apr. 03, 2020 USD ($)
Debt Instrument [Line Items]
2020 (remainder of fiscal year)	$ 3,442
2021	6,885
2022	6,885
2023	6,885
2024	645,432
Total	$ 669,529

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Leases Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Apr. 03, 2020	Apr. 03, 2020
Leases [Abstract]
Amortization of lease assets	$ 796	$ 1,573
Interest on lease liabilities	532	1,116
Total finance lease cost	1,328	2,689
Operating lease cost	2,448	4,931
Variable lease cost	811	1,188
Short-term lease cost	185	270
Sublease income	$ (83)	$ (325)

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Geographic and Significant Customer Information - Additional Information (Details) - segment	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Segment Reporting [Abstract]
Number of reportable operating segment			1
Revenue | Customer Concentration Risk [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	58.00%	55.00%	59.00%	56.00%

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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	6 Months Ended
	Apr. 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)	1,177
Vested and released (in shares)	(564)
Forfeited, canceled or expired (in shares)	(238)
Balance at end of period (in shares)	2,988
Weighted- Average Grate Date Fair Value
Balance at beginning of period (in usd per share)	$ 21.81
Granted (in usd per share)	21.80
Vested and released (in usd per share)	26.98
Forfeited, canceled or expired (in usd per share)	23.18
Balance at end of period (in usd per share)	$ 20.72
Aggregate Intrinsic Value (in thousands)	$ 55,333	$ 56,649

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Property, Plant and Equipment

6 Months Ended

Apr. 03, 2020

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

PROPERTY AND EQUIPMENT

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

	April 3, 2020			September 27, 2019
Construction in process	$	14,067		$	24,848
Machinery and equipment	191,660			175,696
Leasehold improvements	19,241			12,962
Furniture and fixtures	3,736			3,716
Computer equipment and software	18,277			18,116
Capital lease and financed assets	—			46,496
Finance lease assets	36,112			—
Total property and equipment	$	283,093		$	281,834
Less accumulated depreciation and amortization	(157,328		)	(149,187		)
Property and equipment, net	$	125,765		$	132,647

Depreciation and amortization expense related to property and equipment for the three and six months ended April 3, 2020 was $7.3 million and $14.7 million, respectively. Depreciation and amortization expense related to property and equipment for the three and six months ended March 29, 2019 was $7.6 million and $15.2 million, respectively. Accumulated amortization on finance lease assets as of April 3, 2020 was $1.6 million. Accumulated depreciation on capital leases as of September 27, 2019 was $5.3 million.

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Stockholders' Equity

6 Months Ended

Apr. 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 April 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 April 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 11 - Earnings (Loss) Per Share for impact of the common stock warrants on loss per share.

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Geographic and Significant Customer Information (Tables)

6 Months Ended

Apr. 03, 2020

Segment Reporting [Abstract]

Summary of Different Geographic Regions

Information about net property and equipment in different geographic regions is presented below (in thousands):

	April 3, 2020		September 27, 2019
United States	$	107,892	$	116,037
Asia Pacific (1)	7,946		8,917
Other Countries (2)	9,927		7,693
Total	$	125,765	$	132,647

(1) Asia Pacific represents Taiwan, Japan, Singapore, India, Thailand, South Korea, Malaysia, the Philippines, Vietnam and China.

(2)

Outside the United States, no country or region represented greater than 10% of the total net property and equipment as of the dates presented

Summary of Customer Concentrations as Percentage of Revenue and Accounts Receivable

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				Six Months Ended
Revenue	April 3, 2020		March 29, 2019		April 3, 2020	March 29, 2019
Customer A	15	%	14	%	15%	15%
Customer B	11	%	5	%	10%	6%

Accounts Receivable	April 3, 2020		September 27, 2019
Customer A	23	%	24	%
Customer C	13	%	10	%

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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)		12
Stock options exercises	24				24
Vesting of restricted common stock and units (in shares)		545
Vesting of restricted common stock and units	1	$ 1
Issuance of common stock pursuant to employee stock purchase plan (in shares)		156
Issuance of common stock pursuant to employee stock purchase plan	2,392				2,392
Shares repurchased for stock withholdings on restricted stock awards (in shares)		(192)
Shares repurchased for tax withholdings on equity awards	(3,426)				(3,426)
Share-based compensation	17,349				17,349
Other comprehensive loss, net of tax	1,610			1,610
Net loss	(69,600)					(69,600)
Balance at end of period, (in shares) at Mar. 29, 2019		65,723
Balance at end of period at Mar. 29, 2019	617,025	$ 66	$ (330)	3,798	1,091,067	(477,576)
Treasury Stock, Shares			(23)
Balance at beginning of period, (in shares) at Dec. 28, 2018		65,395
Balance at beginning of period at Dec. 28, 2018	657,256	$ 65	$ (330)	2,841	1,086,052	(431,372)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises (in shares)		12
Stock options exercises					24
Vesting of restricted common stock and units (in shares)		490
Vesting of restricted common stock and units		$ 1
Shares repurchased for stock withholdings on restricted stock awards (in shares)		(174)
Shares repurchased for tax withholdings on equity awards	(3,085)				(3,085)
Share-based compensation	8,076				8,076
Other comprehensive loss, net of tax	957			957
Net loss	(46,204)					(46,204)
Balance at end of period, (in shares) at Mar. 29, 2019		65,723
Balance at end of period at Mar. 29, 2019	617,025	$ 66	$ (330)	3,798	1,091,067	(477,576)
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)	18	18
Stock options exercises	$ 122				122
Vesting of restricted common stock and units (in shares)		564
Vesting of restricted common stock and units	1	$ 1
Issuance of common stock pursuant to employee stock purchase plan (in shares)		160
Issuance of common stock pursuant to employee stock purchase plan	1,930				1,930
Shares repurchased for stock withholdings on restricted stock awards (in shares)		(201)
Shares repurchased for tax withholdings on equity awards	(5,949)				(5,949)
Share-based compensation	18,426				18,426
Other comprehensive loss, net of tax	(2,232)			(2,232)
Net loss	(38,588)					(38,588)
Balance at end of period, (in shares) at Apr. 03, 2020		66,718
Balance at end of period at Apr. 03, 2020	285,731	$ 67	$ (330)	2,126	1,116,105	(832,237)
Treasury Stock, Shares			(23)
Balance at beginning of period, (in shares) at Jan. 03, 2020		66,346
Balance at beginning of period at Jan. 03, 2020	293,520	$ 66	$ (330)	4,189	1,111,606	(822,011)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises (in shares)		16
Stock options exercises	79				79
Vesting of restricted common stock and units (in shares)		554
Vesting of restricted common stock and units	1	$ 1
Shares repurchased for stock withholdings on restricted stock awards (in shares)		(198)
Shares repurchased for tax withholdings on equity awards	(5,856)				(5,856)
Share-based compensation	10,276				10,276
Other comprehensive loss, net of tax	(2,063)			(2,063)
Net loss	(10,226)					(10,226)
Balance at end of period, (in shares) at Apr. 03, 2020		66,718
Balance at end of period at Apr. 03, 2020	285,731	$ 67	$ (330)	$ 2,126	$ 1,116,105	(832,237)
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)

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Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Statement of Financial Position [Abstract]
Deferred Revenue, Current	$ 7,027	$ 2,137
Current assets:
Cash and cash equivalents	120,735	75,519
Short-term investments	100,847	101,226
Accounts receivable (less allowances of $4,407 and $5,047, respectively)	53,003	69,790
Inventories	99,624	107,880
Income tax receivable	19,119	16,661
Prepaid and other current assets	24,655	27,506
Total current assets	417,983	398,582
Property and equipment, net	125,765	132,647
Goodwill	314,820	314,727
Intangible assets, net	155,735	181,228
Deferred income taxes	42,848	43,812
Other investments	14,547	23,613
Other long-term assets	41,101	10,965
TOTAL ASSETS	1,112,799	1,105,574
Finance lease liabilities	1,596	1,084
Current liabilities:
Current portion of long-term debt	6,885	6,885
Accounts payable	26,428	24,822
Accrued liabilities	51,028	39,908
Total current liabilities	92,964	74,836
Finance lease liabilities	29,697	29,506
Long-term debt, less current portion	653,722	655,272
Warrant liability	7,804	12,364
Deferred income taxes	2,051	632
Other long-term liabilities	40,830	19,068
Total liabilities	827,068	791,678
Stockholders’ equity:
Common stock	67	66
Treasury stock, at cost	(330)	(330)
Accumulated other comprehensive income	2,126	4,358
Additional paid-in capital	1,116,105	1,101,576
Accumulated deficit	(832,237)	(791,774)
Total stockholders’ equity	285,731	313,896
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,112,799	$ 1,105,574

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Earnings (Loss) Per Share (Tables)

6 Months Ended

Apr. 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						Six Months Ended
	April 3, 2020			March 29, 2019			April 3, 2020			March 29, 2019
Numerator:
Net loss	$	(10,226	)	$	(46,204	)	$	(38,588	)	$	(69,600	)
Warrant liability gain	(8,647		)	—			(4,560		)	(3,862		)
Net loss attributable to common stockholders	$	(18,873	)	$	(46,204	)	$	(43,148	)	$	(73,462	)
Denominator:
Weighted average common shares outstanding-basic	66,522			65,531			66,375			65,404
Dilutive effect of warrants	563			—			546			206
Weighted average common shares outstanding-diluted	67,085			$	65,531		$	66,921		$	65,610
Loss per share-basic:
Net loss to common stockholders per share-basic:	$	(0.15	)	$	(0.71	)	$	(0.58	)	$	(1.06	)
Loss per share-diluted:
Net loss to common stockholders per share-diluted:	$	(0.28	)	$	(0.71	)	$	(0.64	)	$	(1.12	)

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Property, Plant and Equipment (Tables)

6 Months Ended

Apr. 03, 2020

Property, Plant and Equipment [Abstract]

Components of Property, Plant and Equipment

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

	April 3, 2020			September 27, 2019
Construction in process	$	14,067		$	24,848
Machinery and equipment	191,660			175,696
Leasehold improvements	19,241			12,962
Furniture and fixtures	3,736			3,716
Computer equipment and software	18,277			18,116
Capital lease and financed assets	—			46,496
Finance lease assets	36,112			—
Total property and equipment	$	283,093		$	281,834
Less accumulated depreciation and amortization	(157,328		)	(149,187		)
Property and equipment, net	$	125,765		$	132,647

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Leases Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Cash paid for amounts included in measurement of lease liabilities:
Operating cash flows from operating leases	$ 4,486
Operating cash flows from finance leases	1,116
Financing cash flows from finance leases	871	$ 518
Non-cash activities:
Operating lease right-of-use assets obtained in exchange for new lease liabilities	157
Financing lease assets obtained in exchange for new lease liabilities	$ 586

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Debt - Additional Information (Details)	6 Months Ended
	Apr. 03, 2020 USD ($)
Debt Instrument [Line Items]
Principle amount	$ 700,000,000.0
Unamortized deferred financing costs	6,600,000
Term Loans
Debt Instrument [Line Items]
Unamortized deferred financing costs	6,113,000
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	$ 660,607,000
Effective interest rate	3.24%
Principal balance	$ 669,529,000
Estimated fair value of Term Loans	595,900,000
Revolving Credit Facility
Debt Instrument [Line Items]
Unamortized deferred financing costs	500,000
Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity	160,000,000.0
Credit facility, remaining borrowing capacity	160,000,000.0
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%

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Leases Narrative (Details)	6 Months Ended
	Apr. 03, 2020 renewal_option
Leases [Abstract]
Finance lease renewal term	10 years
Number of renewal options	2

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Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information Regarding Non-cash Investing and Financing Activities (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Noncash or Part Noncash Acquisitions [Line Items]
Cash paid for interest	$ 14,830	$ 17,041
Cash paid (refunded) for income taxes	$ 920	(1,606)
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

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Share-Based Compensation Share-Based Compensation Plans - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 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	$ 300	$ 200	$ 300	$ 200
Number of Shares
Beginning Blance Stock options outstanding (in shares)			376
Exercised (in shares)			(18)
Forfeited, canceled or expired (in shares)			0
Ending Balance Stock options outstanding (in shares)	358		358
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)			6.73
Forfeited, canceled or expired (in dollars per share)			19.45
Ending Balance weighted-average exercise price per share (in usd per share)	$ 13.93		$ 13.93
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average remaining contractual term options outstanding			6 years 10 months 2 days
Aggregate intrinsic value stock options outstanding	$ 1,653		$ 1,653
Options vested and expected to vest (in shares)	358		358
Options vested and expected to vest (in dollars per share)	$ 13.93		$ 13.93
Weighted average remaining contractual term options vested and expected to vest			6 years 10 months 2 days
Aggregate intrinsic value of options vested and expected to vest	$ 1,653		$ 1,653
Options exercisable (in shares)	73		73
Options exercisable (in dollars per share)	$ 10.55		$ 10.55
Weighted-average remaining contractual term of options exercisable			2 years 4 months 24 days
Options exercisable intrinsic value	$ 580		$ 580

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Debt

6 Months Ended

Apr. 03, 2020

Debt Disclosure [Abstract]

Debt

DEBT

As of April 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 April 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 April 3, 2020, for the Credit Agreement were as follows (in thousands, except rate data):

	Principal Outstanding	LIBOR Rate	Margin	Effective Interest Rate
Term loans	$669,529	0.99%	2.25%	3.24%

As of April 3, 2020, approximately $6.6 million of deferred financing costs remain unamortized, of which $6.1 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 $0.5 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 April 3, 2020, we had $160.0 million of borrowing capacity under our Revolving Facility, however, we would be subject to certain financial covenants if we were to borrow more than $50 million of the Revolving Facility.

As of April 3, 2020, the following remained outstanding on the Term Loans (in thousands):

	April 3, 2020
Principal balance	$	669,529
Unamortized discount	(2,809		)
Unamortized deferred financing costs	(6,113		)
Total term loans	660,607
Current portion	6,885
Long-term, less current portion	$	653,722

As of April 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)	$	3,442
2021	6,885
2022	6,885
2023	6,885
2024	645,432
Total	$	669,529

The fair value of the Term Loans was estimated to be approximately $595.9 million as of April 3, 2020, and was determined using Level 2 inputs, including a quoted rate from a financial institution.

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Earnings (Loss) Per Share

6 Months Ended

Apr. 03, 2020

Earnings Per Share [Abstract]

Earnings (Loss) Per Share

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						Six Months Ended
	April 3, 2020			March 29, 2019			April 3, 2020			March 29, 2019
Numerator:
Net loss	$	(10,226	)	$	(46,204	)	$	(38,588	)	$	(69,600	)
Warrant liability gain	(8,647		)	—			(4,560		)	(3,862		)
Net loss attributable to common stockholders	$	(18,873	)	$	(46,204	)	$	(43,148	)	$	(73,462	)
Denominator:
Weighted average common shares outstanding-basic	66,522			65,531			66,375			65,404
Dilutive effect of warrants	563			—			546			206
Weighted average common shares outstanding-diluted	67,085			$	65,531		$	66,921		$	65,610
Loss per share-basic:
Net loss to common stockholders per share-basic:	$	(0.15	)	$	(0.71	)	$	(0.58	)	$	(1.06	)
Loss per share-diluted:
Net loss to common stockholders per share-diluted:	$	(0.28	)	$	(0.71	)	$	(0.64	)	$	(1.12	)

As of April 3, 2020, we had warrants outstanding which were reported as a liability on the condensed consolidated balance sheet. During the three and six months ended April 3, 2020, and the six months ended March 29, 2019, we recorded warrant liability gains of $8.6 million, $4.6 million and $3.9 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 six months ended April 3, 2020, and the six months ended March 29, 2019, we adjusted the numerator by the warrant gains of $8.6 million, $4.6 million and $3.9 million, respectively, and the denominator by the incremental shares of 562,567, 545,578 and 206,104, respectively, under the treasury stock method. The table above excludes the effects of 1,009,830 and 886,671 shares for the three and six months ended April 3, 2020, respectively, and 425,202 and 154,377 shares for the three and six months ended March 29, 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.

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Intangible Assets (Tables)

6 Months Ended

Apr. 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				Six Months Ended
	April 3, 2020		March 29, 2019		April 3, 2020		March 29, 2019
Cost of revenue	$	4,347	$	7,883	$	8,767	$	15,935
Selling, general and administrative	8,072		11,873		16,726		24,392
Total	$	12,419	$	19,756	$	25,493	$	40,327

Summary of Intangible Assets

Intangible assets consist of the following (in thousands):

	April 3, 2020			September 27, 2019
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	(272,969		)	(247,724		)
Intangible assets — net	$	155,735		$	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 Technology			Customer Relationships		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	—			—			—		—		93
Balance at April 3, 2020	$	428,704		$	179,434		$	245,870	$	3,400	$	314,820

Summary of Estimated Amortization of Intangible Assets in Future Fiscal Years

As of April 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	$	24,837	46,213	33,433	26,048	15,410	6,394	$	152,335

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Inventories (Tables)

6 Months Ended

Apr. 03, 2020

Inventory Disclosure [Abstract]

Components of Inventories

Inventories consist of the following (in thousands):

	April 3, 2020		September 27, 2019
Raw materials	$	56,018	$	59,184
Work-in-process	12,006		13,799
Finished goods	31,600		34,897
Total inventory, net	$	99,624	$	107,880

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Supplemental Cash Flow Information (Tables)

6 Months Ended

Apr. 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):

	Six Months Ended
	April 3, 2020		March 29, 2019
Cash paid for interest	$	14,830	$	17,041
Cash paid (refunded) for income taxes	$	920	$	(1,606	)

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (38,588)	$ (69,600)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and intangibles amortization	40,241	55,478
Share-based compensation	18,426	17,349
Warrant liability gain	(4,560)	(3,862)
Deferred financing cost amortization	2,031	2,031
Deferred income taxes	2,322	46
Impairment and restructuring related	0	4,696
Loss on minority equity investment	9,066	8,971
Other adjustments, net	1,029	377
Change in operating assets and liabilities:
Accounts receivable	16,787	9,989
Inventories	8,256	2,904
Prepaid expenses and other assets	9,772	(1,256)
Accounts payable	1,812	(4,103)
Accrued and other liabilities	(849)	1,407
Income taxes	(2,807)	2,411
Net cash provided by operating activities	62,938	26,838
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(9,036)	(22,600)
Proceeds from sales and maturities of short-term investments	90,026	86,447
Purchases of short-term investments	(90,401)	(86,951)
Sale of businesses and assets	363	0
Acquisition of businesses, net	0	(375)
Net cash used in investing activities	(9,048)	(23,479)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from stock option exercises and employee stock purchases	2,052	2,416
Payments on long-term debt	(3,442)	(3,442)
Payments on finance leases and other	(871)	(518)
Repurchase of common stock - tax withholdings on equity awards	(5,949)	(3,426)
Payments of contingent consideration and other	0	(577)
Net cash used in financing activities	(8,210)	(5,547)
Foreign currency effect on cash	(464)	189
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	45,216	(1,999)
CASH AND CASH EQUIVALENTS — Beginning of period	75,519	94,676
CASH AND CASH EQUIVALENTS — End of period	$ 120,735	$ 92,677

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 4,407	$ 5,047

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Fair Value (Tables)

6 Months Ended

Apr. 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):

	April 3, 2020
	Fair Value		Active Markets for Identical Assets (Level 1)		Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
Assets
Money market funds	$	491	$	491	$	—	$	—
Commercial paper	72,360		—		72,360		—
Corporate bonds	28,487		—		28,487		—
Total assets measured at fair value	$	101,338	$	491	$	100,847	$	—
Liabilities
Common stock warrant liability	$	7,804	$	—	$	—	$	7,804
Total liabilities measured at fair value	$	7,804	$	—	$	—	$	7,804

	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	April 3, 2020	September 27, 2019
Warrant liability	Black-Scholes model	Volatility	62.1%	61.4%
		Discount rate	0.15%	1.71%
		Expected life	0.7 years	1.2 years
		Exercise price	$14.05	$14.05
		Stock price	$18.55	$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, 2019		Net Realized/Unrealized Losses Included in Earnings			Purchases and Issuances		Sales and Settlements		April 3, 2020
Common stock warrant liability	$	12,364	$	(4,560	)	$	—	$	—	$	7,804

	September 28, 2018		Net Realized/Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements			March 29, 2019
Contingent consideration	$	585	$	65		$	—	$	(650	)	$	—
Common stock warrant liability	$	13,129	$	(3,861	)	$	—	$	—		$	9,268

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Income Taxes

6 Months Ended

Apr. 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.

Our effective tax rates for the six months ended April 3, 2020 and March 29, 2019 were (8.3)% and (2.5)%, respectively. Income tax expense for the six months ended April 3, 2020 and March 29, 2019 was $3.0 million and $1.7 million, respectively. Our effective tax rates for the three months ended April 3, 2020 and March 29, 2019 were (18.3)% and (1.2)%, respectively. Income tax expense for the three months ended April 3, 2020 and March 29, 2019 was $1.6 million and $0.5 million, respectively. The difference between the U.S. federal statutory income tax rate of 21% and our effective tax rates for the three and six months ended April 3, 2020 and March 29, 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 April 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 April 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.

All earnings of foreign subsidiaries, other than M/A-COM Technology Solutions International Limited (“Cayman Islands subsidiary”), and M/A-COM Technology Solutions (UK) Limited (“UK subsidiary”), are considered indefinitely reinvested for the periods presented. During the fiscal quarter ended March 29, 2019, we changed our position for our Cayman Islands subsidiary to no longer have its earnings permanently reinvested which had no tax impact.

The balance of the unrecognized tax benefits remained at $0.3 million as of April 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 April 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.

On March 27, 2020, the U.S. Congress enacted the Coronavirus Aid, Relief and Economic Security Act (the “CARES Act”). The CARES Act made a technical correction to the Tax Act impacting our net operating loss (“NOL”) carryforward for the fiscal year ended September 29, 2018 by limiting it to a 20-year carryforward period, rather than having an indefinite life carryforward, which is applicable for the U.S. NOL carryforward attributes generated starting in our fiscal year ended September 27, 2019. There was no change to the ability of the NOLs generated in the fiscal year ended September 29, 2018 to offset 100% of taxable income during the 20 year carryforward period. This technical correction resulted in an increase to our valuation allowance against certain indefinite-lived NOL carryforward assets that were previously being used to offset indefinite-lived deferred tax liabilities which resulted in tax expense of approximately $1.4 million during the fiscal quarter ended April 3, 2020.

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Related-Party Transactions (Notes)

6 Months Ended

Apr. 03, 2020

Related Party Transactions [Abstract]

Related Party Transactions Disclosure [Text Block]

19. RELATED-PARTY TRANSACTIONS

During the six months ended April 3, 2020, we sold $0.2 million of commercial products to Mission Microwave Technologies, LLC, a MACOM customer and an affiliate of directors John and Susan Ocampo. Together, Mr. and Mrs. Ocampo are MACOM's largest stockholders.

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Investments - Other Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019	Sep. 27, 2019
Equity Securities without Readily Determinable Fair Value [Line Items]
Income (Loss) from Equity Method Investments			$ (9,066)	$ (8,971)
Equity Securities | Compute
Equity Securities without Readily Determinable Fair Value [Line Items]
Equity Method Investments	$ 9,500		9,500		$ 18,600
Income (Loss) from Equity Method Investments	(5,300)	$ (4,400)	(9,100)	$ (9,000)
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%

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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands

6 Months Ended

Apr. 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.

Total lease assets

$ 68,474

$ 40,442

Cumulative effect of ASU 2016-02

(1,875)

Operating lease ROU assets

33,807

Present value of lease liabilities

39,665

Finance lease assets

34,667

Present value of lease liabilities

$ 31,293

Accounting Standards Update 2016-02

New Accounting Pronouncement, Early Adoption [Line Items]

Total lease assets

$ 37,100

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

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Inventories (Details) - USD ($) $ in Thousands	Apr. 03, 2020	Sep. 27, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 56,018	$ 59,184
Work-in-process	12,006	13,799
Finished goods	31,600	34,897
Total inventory, net	$ 99,624	$ 107,880

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Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Apr. 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	(272,969)	(247,724)
Intangible assets — net	155,735	181,228
Developed technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	179,434	179,682
Less accumulated amortization	(143,400)	(134,800)
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	245,870	245,870
Less accumulated amortization	$ (129,600)	$ (112,900)

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Stockholders' Equity - Additional Information (Details) - $ / shares	Apr. 03, 2020	Sep. 27, 2019	Mar. 31, 2012
Equity [Abstract]
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, par value (in usd per share)	$ 0.001	$ 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