MACOM Technology Solutions (MTSI) 10-Q 26 Apr 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Mar. 31, 2017	Apr. 21, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
Entity Central Index Key	1,493,594
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--09-29
Entity Filer Category	Large Accelerated Filer
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2,017
Entity Common Stock, Shares Outstanding		63,827,572

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Current assets:
Cash and cash equivalents	$ 112,615	$ 332,977
Short term investments	31,571	23,776
Accounts receivable (less allowances of $10,424 and $3,279, respectively)	127,709	108,331
Inventories	139,622	114,935
Income tax receivable	20,199	21,607
Disposal Group, Including Discontinued Operation, Assets, Current	30,652	0
Prepaid and other current assets	17,805	11,318
Total current assets	480,173	612,944
Property and equipment, net	118,518	99,167
Goodwill	309,884	120,024
Intangible assets, net	638,877	259,602
Deferred income taxes	1,941	89,606
Other long-term assets	6,339	7,208
TOTAL ASSETS	1,555,732	1,188,551
Current liabilities:
Current portion of lease payable	991	1,152
Current portion of long-term debt	6,051	6,051
Accounts payable	34,124	30,579
Accrued liabilities	58,062	54,368
Liabilities held for sale	6,869	0
Total current liabilities	106,097	92,150
Lease payable, less current portion	14,036	2,463
Long-term debt, less current portion	572,180	573,882
Warrant liability	45,648	38,253
Deferred income taxes	10,116	11,765
Other long-term liabilities	7,537	7,254
Total liabilities	755,614	725,767
Stockholders’ equity:
Common stock	64	54
Treasury stock, at cost	(330)	(330)
Accumulated other comprehensive (loss) income	3,015	9,039
Additional paid-in capital	1,025,953	551,509
Accumulated deficit	(228,584)	(97,488)
Total stockholders’ equity	800,118	462,784
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,555,732	$ 1,188,551

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 8,064	$ 3,279

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Income Statement [Abstract]
Revenue	$ 186,084	$ 133,579	$ 337,836	$ 249,353
Cost of revenue	117,220	68,054	190,477	123,510
Gross profit	68,864	65,525	147,359	125,843
Operating expenses:
Research and development	39,685	26,203	69,859	51,525
Selling, general and administrative	62,327	34,617	98,822	69,303
Impairment charges	0	11,005	0	11,005
Restructuring charges	469	851	1,757	1,008
Total operating expenses	102,481	72,676	170,438	132,841
Loss from operations	(33,617)	(7,151)	(23,079)	(6,998)
Other (expense) income
Warrant liability expense	(2,573)	(4,201)	(7,395)	(19,079)
Interest expense, net	(7,374)	(4,408)	(14,724)	(8,754)
Other (expense) income	(898)	(81)	(903)	19
Total other expense, net	(10,845)	(8,690)	(23,022)	(27,814)
Loss before income taxes	(44,462)	(15,841)	(46,101)	(34,812)
Income tax expense (benefit)	89,805	(3,796)	90,337	(5,997)
Loss from continuing operations	(134,267)	(12,045)	(136,438)	(28,815)
Income from discontinued operations	4,136	1,396	5,342	2,595
Net loss	$ (130,131)	$ (10,649)	$ (131,096)	$ (26,220)
Basic income (loss) per share:
Income (loss) from continuing operations (in usd per share)	$ (2.21)	$ (0.23)	$ (2.38)	$ (0.54)
Income from discontinued operations (in usd per share)	0.07	0.03	0.09	0.05
Income (loss) per share - basic (in usd per share)	(2.14)	(0.20)	(2.29)	(0.49)
Diluted income (loss) per share:
Income (loss) from continuing operations (in usd per share)	(2.21)	(0.23)	(2.38)	(0.54)
Income from discontinued operations (in usd per share)	0.07	0.03	0.09	0.05
Income (loss) per share - diluted (in usd per share)	$ (2.14)	$ (0.20)	$ (2.29)	$ (0.49)
Shares used:
Basic (in shares)	60,813	53,228	57,276	53,122
Diluted (in shares)	60,813	53,228	57,276	53,122

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Statement of Comprehensive Income [Abstract]
Net loss	$ (130,131)	$ (10,649)	$ (131,096)	$ (26,220)
Unrealized gain on short term investments, net of tax	52	73	6	12
Foreign currency translation gain (loss), net of tax	3,567	5,647	(6,030)	5,538
Other comprehensive loss, net of tax	3,619	5,720	(6,024)	5,550
Total comprehensive loss	$ (126,512)	$ (4,929)	$ (137,120)	$ (20,670)

Condensed Consolidated Stateme6

Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - 6 months ended Mar. 31, 2017 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]
Balance at beginning of period (in shares) at Sep. 30, 2016		53,709	23
Balance at beginning of period at Sep. 30, 2016	$ 462,784	$ 54	$ (330)	$ 9,039	$ 551,509	$ (97,488)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises (in shares)		45
Stock options exercises	268				268
Vesting of restricted common stock and units (in shares)		540
Vesting of restricted common stock and units	0	$ 0
Issuance of common stock pursuant to employee stock purchase plan (in shares)		77
Issuance of common stock pursuant to employee stock purchase plan	2,420				2,420
Shares repurchased for stock withholdings on restricted stock awards (in shares)		(214)
Shares repurchased for stock withholdings on restricted stock awards	(10,027)				(10,027)
Share-based compensation	17,731				17,731
Shares issued in connection with acquisition	465,082	$ 9,643			465,072
Payments of Stock Issuance Costs	(1,020)				(1,020)
Equity issuance costs		10
Other comprehensive loss, net of tax	(6,024)			(6,024)
Net loss	(131,096)					(131,096)
Balance at end of period (in shares) at Mar. 31, 2017		63,800	23
Balance at end of period at Mar. 31, 2017	$ 800,118	$ 64	$ (330)	$ 3,015	$ 1,025,953	$ (228,584)

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (131,096)	$ (26,220)
Adjustments to reconcile net loss to net cash provided by operating activities (net of acquisitions):
Depreciation and intangibles amortization	40,097	34,078
Share-based compensation	17,731	13,226
Warrant liability expense	7,395	19,079
Acquired inventory step-up amortization	31,373	2,084
Deferred financing cost amortization	1,423	810
Acquisition prepaid compensation amortization	506	3,241
Write off of Deferred Debt Issuance Cost	871	0
Gain on disposition of business	(21,770)	(3,750)
Deferred income taxes	86,123	(4,569)
Asset Impairment Charges	0	12,955
Other adjustments, net	4,334	298
Change in operating assets and liabilities (net of acquisitions):
Accounts receivable	(10,879)	(203)
Inventories	458	(13,415)
Prepaid expenses and other assets	1,358	(993)
Accounts payable	(2,219)	(2,880)
Accrued and other liabilities	(7,680)	2,072
Income taxes	2,814	(715)
Net cash provided by operating activities	20,839	35,098
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of businesses, net	(229,423)	(85,516)
Purchases of property and equipment	(16,295)	(16,962)
Proceeds from sale of assets	215	0
Proceeds from sales and maturities of investments	19,037	23,292
Purchases of investments	(26,976)	(7,696)
Proceeds from discontinued operations	21,770	3,750
Acquisition of intellectual property	0	(777)
Net cash used in investing activities	(231,672)	(83,909)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from stock option exercises and employee stock purchases	2,688	3,071
Payments on notes payable	(3,026)	(1,750)
Proceeds from corporate facility financing obligation	4,250	0
Payments of capital leases and assumed debt	(618)	(9,120)
Repurchase of common stock	(10,027)	(6,152)
Payments of contingent consideration and other	(2,517)	(1,195)
Net cash used in financing activities	(9,250)	(15,146)
Foreign currency effect on cash	(279)	(168)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(220,362)	(64,125)
CASH AND CASH EQUIVALENTS — Beginning of period	332,977	122,312
CASH AND CASH EQUIVALENTS — End of period	112,615	58,187
Consideration paid, equity instruments issued	$ 465,082	$ 0

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Mar. 31, 2017
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 (“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, condensed consolidated statement of comprehensive loss, condensed consolidated statements of stockholders' equity and condensed consolidated statements of 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 consolidated balance sheet at September 30, 2016 is as reported in our audited consolidated financial statements as of that date. Our accounting policies are described in the notes to our September 30, 2016 consolidated financial statements, which were included in our Annual Report on Form 10-K for our fiscal year ended September 30, 2016 filed with the SEC on November 17, 2016 . 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 Annual Report on Form 10-K for our fiscal year ended September 30, 2016 . Principles of Consolidation— We have one reportable segment, semiconductors and modules. The accompanying 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. The fiscal years 2017 and 2016 include 52 weeks. To offset the effect of holidays, for fiscal years in which there are 53 weeks, we include the extra week arising in our fiscal years in the first quarter. Use of Estimates —The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the U.S. 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 notes to our September 30, 2016 consolidated financial statements, which were included in our Annual Report on Form 10-K for fiscal year ended September 30, 2016 . In September 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments , which eliminates the requirement for an acquirer in a business combination to account for measurement-period adjustments retrospectively. Acquirers will now recognize measurement-period adjustments during the period in which they determine the amount of the adjustment. This ASU is effective for annual and interim reporting periods beginning after December 15, 2015, and should be applied prospectively to adjustments for provisional amounts that occur after the effective date. The adoption of this guidance did not have a material impact on our consolidated financial statements.

Acquisitions

Acquisitions	6 Months Ended
	Mar. 31, 2017
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS Acquisition of Applied Micro Circuits Corporation— On January 26, 2017 we completed the acquisition of Applied Micro Circuits Corporation (“AppliedMicro”), a global provider of silicon solutions for next-generation cloud infrastructure and cloud data centers, as well as connectivity products for edge, metro and long-haul communications equipment (the “AppliedMicro Acquisition”). We acquired AppliedMicro in order to expand our business in enterprise and cloud data center applications. In connection with the AppliedMicro Acquisition, we acquired all of the outstanding common stock of AppliedMicro for total consideration of $695.4 million , which included cash paid of $287.1 million , less $56.8 million of cash acquired, and equity issued at a fair value of $465.1 million . In conjunction with the equity issued, we granted vested out-of-money stock options and unvested restricted stock units to replace outstanding vested out-of-money stock options and unvested restricted stock units of AppliedMicro. The total fair value of granted vested out-of-money stock options and unvested restricted stock units was $14.5 million , of which $9.3 million was attributable to pre-combination service and was included in the total consideration transferred. We funded the AppliedMicro Acquisition with cash on hand and short term investments. For the three and six months ended March 31, 2017 , we recorded transaction costs of $8.3 million and $11.8 million , respectively. We recorded transaction costs related to the acquisition in selling, general and administrative expense, except for $ 1.0 million related to equity issuance costs which was recorded to additional paid in capital. The AppliedMicro Acquisition was accounted for as a stock purchase and the operations of AppliedMicro have been included in our consolidated financial statements since the date of acquisition. We recognized the AppliedMicro assets acquired and liabilities assumed based upon the fair value of such assets and liabilities measured as of the date of acquisition. The aggregate purchase price for AppliedMicro has been allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair value at the date of acquisition. The excess of the purchase price over the fair value of the acquired net assets represents cost and revenue synergies specific to the Company, as well as non-capitalizable intangible assets, such as the employee workforce acquired, and has been allocated to goodwill, none of which will be tax deductible. The purchase accounting is preliminary and subject to completion including certain fair value measurements, particularly the finalization of the valuation assessment of the acquired tangible and intangible assets. The adjustments arising from the completion of the outstanding matters may materially affect the preliminary purchase accounting. In connection with the acquisition of AppliedMicro, we entered into a plan to divest a portion of AppliedMicro's business specifically related to its compute business (the "Compute business"). Accordingly these assets and liabilities are accounted for as discontinued operations and classified as assets and liabilities held for sale. The following table summarizes the total estimated acquisition consideration (in thousands): Cash consideration paid to AppliedMicro common stockholders $ 287,060 Common stock issued (9,544,125 shares of our common stock at $47.53 per share) 453,632 Equity consideration for vested "in the money" stock options and unvested restricted stock units 2,143 Fair value of the replacement equity awards attributable to pre-acquisition service 9,307 Total consideration paid, excluding cash acquired $ 752,142 The preliminary allocation of purchase price as of March 31, 2017 is as follows (in thousands): Preliminary Allocation Current assets $ 70,338 Intangible assets 410,348 Assets held for sale 32,458 Other assets 13,504 Total assets acquired 526,648 Liabilities assumed: Liabilities held for sale 4,444 Other liabilities 17,890 Total liabilities assumed 22,334 Net assets acquired 504,314 Consideration: Cash paid upon closing 230,298 Common stock issued 455,775 Equity instruments issued 9,307 Total consideration $ 695,380 Goodwill $ 191,066 The components of the acquired intangible assets were as follows (in thousands): Included in assets held for sale Included in retained business Useful Lives (Years) Developed technology $ 9,600 $ 78,448 7 years Customer relationships — 331,900 10 years $ 9,600 $ 410,348 The overall weighted-average life of the identified intangible assets acquired in the AppliedMicro Acquisition is estimated to be 9.4 years and the assets are being amortized over their estimated useful lives based upon the pattern over which we expect to receive the economic benefit from these assets. The following is a summary of AppliedMicro revenue and earnings included in our accompanying condensed consolidated statements of operations for the three months ended March 31, 2017 (in thousands): Three Months Ended March 31, 2017 Revenue $ 36,445 Loss from continuing operations (30,304 ) Loss from discontinued operations (16,430 ) The pro forma statements of operations data for the six months ended March 31, 2017 and April 1, 2016 , below, give effect to the AppliedMicro Acquisition, described above, as if it had occurred at October 2, 2015. These amounts have been calculated after applying our accounting policies and adjusting the results of AppliedMicro to reflect; transaction costs, retention compensation expense, the impact of the step-up to the value of acquired inventory, as well as the additional intangible amortization that would have been charged assuming the fair value adjustments had been applied and incurred since October 2, 2015. This pro forma data is presented for informational purposes only and does not purport to be indicative of our future results of operations. Six Months Ended March 31, 2017 April 1, 2016 Revenue $ 394,792 $ 329,923 Loss from continuing operations (84,543 ) (62,937 ) Loss from discontinued operations (19,316 ) (35,764 ) Acquisition of FiBest Limited— On December 9, 2015, we completed the acquisition of FiBest Limited (“FiBest”) a Japan-based merchant market component supplier of optical sub-assemblies (“FiBest Acquisition”). We acquired FiBest to expand our position in optical networking components. In connection with the FiBest Acquisition, all of the outstanding equity interests (including outstanding options) of FiBest were exchanged for aggregate consideration of $59.1 million including cash of $47.5 million and assumed debt of $11.6 million . We funded the FiBest Acquisition with cash on hand. There were no transaction costs recorded in the six months ended March 31, 2017 . For the six months ended April 1, 2016 we recorded transaction costs of $2.7 million as selling, general and administrative expenses related to this acquisition. The FiBest Acquisition was accounted for as a stock purchase and the operations of FiBest have been included in our consolidated financial statements since the date of acquisition. We recognized the FiBest assets acquired and liabilities assumed based upon the fair value of such assets and liabilities measured as of the date of acquisition. The aggregate purchase price for FiBest has been allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. The excess of the purchase price over the fair value of the acquired net assets represents cost and revenue synergies specific to the Company, as well as non-capitalizable intangible assets, such as the employee workforce acquired, and has been allocated to goodwill, none of which is tax deductible. During the quarter ended December 30, 2016, we recorded an adjustment of $0.2 million primarily related to other liabilities and an adjustment of the deferred tax liability associated with the FiBest Acquisition. We finalized our allocation of purchase price during the quarter ended December 30, 2016. The final allocation of purchase price as of December 30, 2016, is as follows (in thousands): Preliminary Allocation as of September 30, 2016 Allocation Adjustments Final Allocation Current assets $ 10,445 $ — $ 10,445 Intangible assets 45,650 — 45,650 Other assets 3,317 — 3,317 Total assets acquired 59,412 — 59,412 Liabilities assumed: Debt 11,627 — 11,627 Deferred income taxes 11,658 (106 ) 11,552 Other liabilities 3,968 326 4,294 Total liabilities assumed 27,253 220 27,473 Net assets acquired 32,159 (220 ) 31,939 Consideration: Cash paid upon closing, net of cash acquired 47,517 — 47,517 Goodwill $ 15,358 $ 220 $ 15,578 The components of the acquired intangible assets were as follows (in thousands): Amount Useful Lives (Years) Developed technology $ 9,400 7 Customer relationships 36,250 10 $ 45,650 The overall weighted-average life of the identified intangible assets acquired in the FiBest Acquisition is estimated to be 9.4 years and the assets are being amortized over their estimated useful lives based upon the pattern over which we expect to receive the economic benefit from these assets. The following is a summary of FiBest revenue and earnings included in our accompanying condensed consolidated statements of operations for the three and six months ended April 1, 2016 (in thousands): Three Months Ended Six Months Ended April 1, 2016 April 1, 2016 Revenue $ 8,435 $ 11,105 Loss before income taxes (1,747 ) (2,558 ) The pro forma statements of operations data for the three and six months ended April 1, 2016 , below, give effect to the FiBest Acquisition, described above, as if it had occurred at October 4, 2014. These amounts have been calculated after applying our accounting policies and adjusting the results of FiBest to reflect; transaction costs, retention compensation expense, the impact of the step-up to the value of acquired inventory, as well as the additional intangible amortization that would have been charged assuming the fair value adjustments had been applied and incurred since October 4, 2014. This pro forma data is presented for informational purposes only and does not purport to be indicative of our future results of operations. Three Months Ended Six Months Ended April 1, 2016 April 1, 2016 Revenue $ 133,579 $ 256,979 Net loss (11,531 ) (26,785 ) Acquisition of Aeroflex/Metelics Inc.— On December 14, 2015, we acquired Aeroflex/Metelics, Inc. (“Metelics”), a diode supplier for aggregate cash consideration of $38.0 million , subject to customary working capital and other adjustments (“Metelics Acquisition”). We acquired Metelics to expand our diode business. We funded the acquisition with cash on hand. The Metelics Acquisition was accounted for as a stock purchase and the operations of Metelics have been included in our consolidated financial statements since the date of acquisition. For the six months ended March 31, 2017 , no material transaction costs were recorded. For the six months ended April 1, 2016 , we recorded transaction costs of $0.5 million as selling, general and administrative expenses related to this acquisition. We recognized the Metelics assets acquired and liabilities assumed based upon the fair value of such assets and liabilities measured as of the date of acquisition. The aggregate purchase price for Metelics has been allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. The excess of the purchase price over the fair value of the acquired net assets represents cost and revenue synergies specific to the Company, as well as non-capitalizable intangible assets, such as the employee workforce acquired, and has been allocated to goodwill, which is tax deductible due to a 338(h)(10) election. We finalized our allocation of purchase price during the quarter ended December 30, 2016. The final allocation of purchase price as of December 30, 2016, is as follows (in thousands): Preliminary Allocation as of September 30, 2016 Allocation Adjustments Final Allocation Current assets $ 12,614 $ — $ 12,614 Intangible assets 20,900 — 20,900 Other assets 3,089 — 3,089 Total assets acquired 36,603 — 36,603 Liabilities assumed: Other liabilities 7,201 — 7,201 Total liabilities assumed 7,201 — 7,201 Net assets acquired 29,402 — 29,402 Consideration: Cash paid upon closing, net of cash acquired 37,125 — 37,125 Goodwill $ 7,723 $ — $ 7,723 The components of the acquired intangible assets were as follows (in thousands): Amount Useful Lives (Years) Developed technology $ 1,000 7 Customer relationships 19,900 10 $ 20,900 The overall weighted-average life of the identified intangible assets acquired in the Metelics Acquisition is estimated to be 9.9 years and the assets are being amortized over their estimated useful lives based upon the pattern over which we expect to receive the economic benefit from these assets. The following is a summary of Metelics revenue and earnings included in our accompanying condensed consolidated statements of operations for the three and six months ended April 1, 2016 (in thousands): Three Months Ended Six Months Ended April 1, 2016 April 1, 2016 Revenue $ 10,345 $ 12,252 Income before income taxes (220 ) (174 ) The pro forma statements of operations data for the three and six months ended April 1, 2016 , below, give effect to the Metelics Acquisition, described above, as if it had occurred at October 4, 2014. These amounts have been calculated after applying our accounting policies and adjusting the results of Metelics to reflect the transaction costs, the impact of the step-up to the value of acquired inventory, as well as, the additional intangible amortization that would have been charged assuming the fair value adjustments had been applied and incurred since October 4, 2014. This pro forma data is presented for informational purposes only and does not purport to be indicative of our future results of operations. Three Months Ended Six Months Ended April 1, 2016 April 1, 2016 Revenue $ 133,579 $ 258,189 Net loss (10,119 ) (25,703 )

Discontinued Operations

Discontinued Operations	6 Months Ended
	Mar. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS In connection with the acquisition of AppliedMicro, we entered into a plan to divest its Compute business. As of March 31, 2017 , the Compute business is being actively marketed, negotiations are preliminary and the sale is expected to be completed within twelve months from the date of acquisition. We are accounting for the business as a discontinued operation. In August 2015, we sold our Automotive business to Autoliv ASP Inc. (“Autoliv”), as the Automotive business was not consistent with our long-term strategic vision from both a growth and profitability perspective. The agreed consideration included $82.1 million in cash paid at closing and $18.0 million payable in eighteen months pending resolution of any contingencies as part of an indemnification agreement, plus the opportunity to receive up to an additional $30.0 million in cash based on achievement of revenue-based earnout targets through fiscal year 2019. Additionally, we entered into a consulting agreement pursuant to which we may provide Autoliv with certain non-design advisory services for a period of two years following the closing of the transaction for up to $15.0 million in cash (the "Consulting Agreement"). During the three months ended March 31, 2017, we received $18.0 million , the full amount of the indemnification escrow. The remainder of the consideration to be received from Autoliv, if any, including any additional amounts related to the Consulting Agreement, will be accounted for in discontinued operations when the contingencies are finalized and the proceeds, if any, become realizable. Other income recorded during the three and six months ended March 31, 2017 and April 1, 2016 from the Automotive business related to the Consulting Agreement. The accompanying consolidated statements of operations includes the following operating results related to these discontinued operations (in thousands): Three Months Ended Six Months Ended March 31, 2017 April 1, 2016 March 31, 2017 April 1, 2016 Revenue (1) $ 259 $ — $ 259 $ — Cost of revenue (1) 1,620 — 1,620 — Gross profit (1,361 ) — (1,361 ) — Operating expenses: Research and development (1) 8,325 — 8,325 — Selling, general and administrative (1) 6,744 — 6,744 — Total operating expenses 15,069 — 15,069 — Income from operations (16,430 ) — (16,430 ) — Other income (2) 1,875 1,875 3,750 3,750 Gain on sale (2) 18,022 308 18,022 308 Income before income taxes 3,467 2,183 5,342 4,058 Income tax provision (669 ) 787 — 1,463 Income from discontinued operations $ 4,136 $ 1,396 $ 5,342 $ 2,595 Above includes depreciation and amortization of $ 2,535 $ — $ 2,535 $ — Cash flow from operating activities 12,487 — 12,487 — Cash flow from investing activities (663 ) 3,750 (663 ) 3,750 Cash flow from financing activities (32,201 ) — (32,201 ) — (1) Amounts are associated with the Compute business. (2) Amounts are associated with the Automotive business.

Short Term Investments

Short Term Investments	6 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Investments	INVESTMENTS All investments are short term in nature and are invested in corporate bonds, restricted money market funds, commercial paper and agency bonds, and are classified as available-for-sale. Money market funds include restricted investments in mutual funds acquired in connection with the acquisition of AppliedMicro, which are expected to be liquidated during our fiscal quarter ending June 30, 2017. The amortized cost, gross unrealized holding gains or losses, and fair value of our investments by major investment type as of March 31, 2017 and September 30, 2016 are summarized in the tables below (in thousands): March 31, 2017 Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Aggregate Fair Value Corporate bonds $ 15,015 $ — $ (105 ) $ 14,910 Commercial paper 10,909 — (7 ) 10,902 Agency bonds 2,956 — (7 ) 2,949 Money market funds $ 2,810 $ — $ — $ 2,810 Total investments $ 31,690 $ — $ (119 ) $ 31,571 September 30, 2016 Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Aggregate Fair Value Corporate bonds $ 14,894 $ 9 $ (103 ) $ 14,800 Commercial paper 2,978 — (4 ) 2,974 Agency bonds 6,004 1 (3 ) 6,002 Total investments $ 23,876 $ 10 $ (110 ) $ 23,776 The contractual maturities of investments were as follows (in thousands): March 31, 2017 September 30, 2016 Less than 1 year $ 15,200 $ 8,976 Over 1 year 16,371 14,800 Total investments $ 31,571 $ 23,776 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 loss.

Fair Value

Fair Value	6 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value	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 March 31, 2017 . Money market funds are actively traded and consist of highly liquid investments with original maturities of 90 days or less . They are measured at their net asset value and classified as Level 1 assets. Corporate and agency bonds and commercial paper are categorized as Level 2 assets except where sufficient quoted prices exist in active markets, in which case such securities are categorized as Level 1 assets. These securities are valued using third-party pricing services. These services may use, for example, model-based pricing methods that utilize observable market data as inputs. We generally use quoted prices for recent trading activity of assets with similar characteristics to the debt security or bond being valued. The securities and bonds priced using such methods are generally classified as Level 2 assets. Broker dealer bids or quotes on securities with similar characteristics may also be used. Assets and liabilities measured at fair value on a recurring basis consist of the following (in thousands): March 31, 2017 Fair Value Active Markets for Identical Assets (Level 1) Observable Inputs (Level 2) Unobservable Inputs (Level 3) Assets Money market funds $ 2,935 $ 2,935 $ — $ — Commercial paper 10,902 — 10,902 — Agency bonds 2,949 — 2,949 — Corporate bonds 14,910 — 14,910 — Total assets measured at fair value $ 31,696 $ 2,935 $ 28,761 $ — Liabilities Contingent consideration $ 481 $ — $ — $ 481 Common stock warrant liability 45,648 — — 45,648 Total liabilities measured at fair value $ 46,129 $ — $ — $ 46,129 September 30, 2016 Fair Value Active Markets for Identical Assets (Level 1) Observable Inputs (Level 2) Unobservable Inputs (Level 3) Assets Money market funds $ 1,172 $ 1,172 $ — $ — Commercial paper 102,928 — 102,928 — US treasuries and agency bonds 6,002 — 6,002 — Corporate bonds 14,799 — 14,799 — Total assets measured at fair value $ 124,901 $ 1,172 $ 123,729 $ — Liabilities Contingent consideration $ 848 $ — $ — $ 848 Common stock warrant liability 38,253 — — 38,253 Total liabilities measured at fair value $ 39,101 $ — $ — $ 39,101 As of March 31, 2017 and September 30, 2016 , the fair value of the common stock warrants has been 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 March 31, 2017 September 30, 2016 Contingent consideration Discounted cash flow Discount rate 10.6% 12.9% Probability of achievement 75% - 100% 75% - 100% Timing of cash flows 8 months 1 year Warrant liability Black-Scholes model Volatility 42.9% 43.2% Discount rate 1.76% 1.14% Expected life 3.73 years 4.23 years Exercise price $14.05 $14.05 The fair values of the contingent consideration liabilities were estimated based upon a risk-adjusted present value of the probability-weighted expected payments by us. Specifically, we considered base, upside and downside scenarios for the operating metrics upon which the contingent payments are to be based. Probabilities were assigned to each scenario and the probability weighted payments were discounted to present value using risk-adjusted discount rates. The changes in liabilities with inputs classified within Level 3 of the fair value hierarchy consist of the following (in thousands): September 30, Net Realized/Unrealized Losses Included in Earnings Sales and Settlements March 31, Contingent consideration $ 848 $ 33 $ (400 ) $ 481 Common stock warrant liability $ 38,253 $ 7,395 $ — $ 45,648 October 2, Net Realized/Unrealized Losses Included in Earnings Sales and Settlements April 1, Contingent consideration $ 1,150 $ 46 $ (400 ) $ 796 Common stock warrant liability $ 21,822 $ 19,079 $ — $ 40,901

Inventories

Inventories	6 Months Ended
	Mar. 31, 2017
Inventory Disclosure [Abstract]
Inventories	INVENTORIES Inventories consist of the following (in thousands): March 31, September 30, Raw materials $ 69,972 $ 67,378 Work-in-process 13,702 9,157 Finished goods 55,948 38,400 Total $ 139,622 $ 114,935

Property, Plant and Equipment

Property, Plant and Equipment	6 Months Ended
	Mar. 31, 2017
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consists of the following (in thousands): March 31, September 30, Land, buildings and improvements $ 16,653 $ 12,572 Construction in process 13,196 9,415 Machinery and equipment 146,469 129,639 Leasehold improvements 13,215 12,152 Furniture and fixtures 2,767 1,469 Computer equipment and software 17,797 12,954 Total property and equipment $ 210,097 $ 178,201 Less accumulated depreciation and amortization (91,579 ) (79,034 ) Property and equipment, net $ 118,518 $ 99,167 Depreciation and amortization expense related to property, plant and equipment for the three and six months ended March 31, 2017 was $7.2 million and $13.1 million , respectively. Depreciation and amortization expense related to property, plant and equipment for the three and six months ended April 1, 2016 was $5.2 million and $9.5 million , respectively.

Debt

Debt	6 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Debt	DEBT On May 8, 2014, we entered into a credit agreement (“Credit Agreement”) with a syndicate of lenders that provided for term loans in an aggregate principal amount of $350.0 million , which mature in May 2021 (“Initial Term Loans”) and a revolving credit facility of $100.0 million initially, which matures in May 2019 (“Revolving Facility”). In February 2015, we executed an amendment to the Credit Agreement that increased our aggregate borrowing capacity under the Revolving Facility to $130 million . The Initial Term Loans were issued with an original issue discount of 0.75% , which is being amortized over the term of the Initial Term Loans using the straight-line method, which approximates the effective interest rate method. On August 31, 2016, we entered into an amendment (“Incremental Term Loan Amendment”) to our Credit Agreement which provided for incremental term loans in an aggregate principal amount of $250 million , which mature in May 2021 (“Incremental Term Loans”, together with the Initial Term Loans, “Term Loans”). The terms of the Incremental Term Loans are identical to the terms of the Initial Term Loans, other than with respect to upfront fees, original issue discount and arrangement, structuring or similar fees payable in connection therewith. The Incremental Term Loans were issued with an original issue discount of 0.95% , which is being amortized over the term of the Incremental Term Loans using the straight-line method, which approximates the effective interest rate method. On March 10, 2017, we entered into multiple amendments to our Credit Agreement (the "March 2017 Amendments"), which consisted of (i) the Second Incremental Amendment, by and among MACOM, Barclays Bank PLC and Goldman Sachs Bank USA, as Administrative Agent, (ii) the Refinancing Amendment, by and among MACOM Technology Solutions Holdings, Inc., the lenders party thereto and Goldman Sachs Bank USA, as Administrative Agent and (iii) Amendment No. 4 to the Credit Agreement, by and among MACOM Technology Solutions Holdings, Inc., the revolving credit lenders and Goldman Sachs Bank USA, as Administrative Agent. Pursuant to the March 2017 Amendments, we increased the revolving credit commitments available under our revolving credit facility by $30.0 million to $160.0 million . No amounts were drawn under the increased revolving credit commitments on the closing date of the March 2017 Amendments or as of March 31, 2017. In addition, pursuant to the March 2017 Amendments, our existing Term Loans were refinanced at a reduced interest rate. The Term Loans will 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 in the range of 2.75% to 3.00% (based on our total net leverage ratio being within certain defined ranges); and (ii) for base rate loans, a rate per annum equal to the greater of (x) the prime rate quoted in the print edition of the Wall Street Journal, Money Rates Section, (y) the federal funds rate plus one-half of 1.00% and (z) 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 in the range of 1.75% to 2.00% (based on our total net leverage ratio being within certain defined ranges). Interest on the Term Loans is payable quarterly. The effective interest rate on our Term Loans was 3.86% as of March 31, 2017 . Further, pursuant to the March 2017 Amendments, the Credit Agreement was amended to provide that the financial covenant under the revolving credit facility would only be tested if, as of the last date of any fiscal quarter, the aggregate amount outstanding under the revolving credit facility (other than with respect to (a) undrawn letters of credit in an amount not to exceed $5.0 million and (b) letters of credit that have been cash collateralized pursuant to the Credit Agreement) exceeds 35% of the revolving credit commitments under the Company’s revolving credit facility. Prior to the Revolver Amendment, the threshold for testing the financial covenant was set at 25% of the revolving credit commitments under the Company’s revolving credit facility. We incurred $8.7 million in fees for the issuance of the Credit Agreement in May 2014, and $3.2 million in fees for the issuance of the Incremental Term Loan Amendment in August 2016, which were initially recorded as deferred financing costs and are being amortized over the life of the Credit Agreement as interest expense. In March 2017, we incurred an additional $1.0 million in fees for the issuance of the March 2017 Amendments. In connection with the March 2017 Amendments, we determined that $0.9 million of deferred costs previously capitalized should be expensed as a loss on extinguishment of debt related to syndicated lenders whose debt was extinguished. As of March 31, 2017 , approximately $8.2 million of deferred financing costs remain unamortized, of which $6.9 million is related to the Incremental Term Loans and is recorded as a direct reduction of the recognized debt liabilities in our accompanying consolidated balance sheet, and $1.3 million is related to the Revolving Facility and is recorded in other assets in our accompanying consolidated balance sheet. The Term Loans and Incremental Term Loans 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. As of March 31, 2017 , we were in compliance with all financial and non-financial covenants under the Credit Agreement and we had $588.5 million of outstanding Term Loan borrowings under the Credit Agreement and $160.0 million of borrowing capacity under our Revolving Facility. As of March 31, 2017 , the following remained outstanding on the Term Loans (in thousands): Principal balance $ 588,462 Unamortized discount (3,336 ) Total term loans $ 585,126 Current portion 6,051 Long-term, less current portion $ 579,075 As of March 31, 2017 , the minimum principal payments under the Term Loans in future fiscal years were as follows (in thousands): 2017 (rest of fiscal year) $ 3,026 2018 6,051 2019 6,051 2020 6,051 2021 567,283 Total $ 588,462 The fair value of the Term Loans was estimated to be approximately $596.6 million as of March 31, 2017 and was determined using Level 2 inputs, including a quoted rate from a bank.

Capital Lease and Financing Obl

Capital Lease and Financing Obligations Capital Lease and Financing Obligations	6 Months Ended
	Mar. 31, 2017
Leases [Abstract]
Capital Lease Obligations	9. CAPITAL LEASE AND FINANCING OBLIGATIONS Corporate Facility Financing Obligation On May 26, 2016, we entered into a Purchase and Sale Agreement (“Purchase Agreement”) with Calare Properties, Inc., a Delaware corporation (together with its affiliates, the “Buyer”) for the sale and subsequent leaseback of our corporate headquarters, located at 100 Chelmsford Street, Lowell, Massachusetts. The transactions contemplated by the Purchase Agreement closed on December 28, 2016, at which time we also entered into three lease agreements with the Buyer including: (1) a 20 -year leaseback of the facility located at 100 Chelmsford Street (the “100 Chelmsford Lease”), (2) a 20 -year build-to-suit lease arrangement for the construction and subsequent lease back of a new facility to be located at 144 Chelmsford Street (the “144 Chelmsford Lease”), and (3) a 14 -year building lease renewal of an adjacent facility at 121 Hale Street (the “121 Hale Lease”, and together with the 100 Chelmsford Lease and the 144 Chelmsford Lease, the “Leases”). Because the transactions contemplated by the Purchase Agreement and the related Leases were negotiated and consummated at the same time and in contemplation of one another to achieve the same commercial objective, the transactions are accounted for by us as a single unit of accounting. In addition, the Leases were determined to represent a failed sale-leaseback due to our continuing involvement in the properties in the form of non-recourse financing. As a result, the Leases are accounted for under the financing method and we will be the deemed accounting owner under the arrangement, including the assets to be constructed under the 144 Chelmsford Lease. We will continue to recognize the existing building and improvements sold under the Purchase Agreement, capitalize the 121 Hale Street building as well as the assets constructed under the Leases, and depreciate the assets over the shorter of their estimated useful lives or the lease terms. The sale proceeds from the Purchase Agreement of $8.2 million (which includes $4.2 million in cash and $4.0 million in construction allowances) and the fair value of the 121 Hale Street building of $4.0 million were recognized as a financing obligation on our balance sheet and are being amortized over the 20 -year lease term based on the minimum lease payments required under the Leases and our incremental borrowing rate. Future construction costs funded by the Buyer under the 144 Chelmsford Lease will be recognized as additional financing obligations on our balance sheet as incurred and will be amortized over the 20 -year lease term based on the minimum lease payments required under the Leases and our incremental borrowing rate. As a result of the failed sale-leaseback accounting, we calculated a financing obligation as of the December 28, 2016 inception of the lease based on the future minimum lease payments discounted at 8.5% . The discount rate represents the estimated incremental borrowing rate over the lease term of 20 -years. The minimum lease payments are recorded as interest expense and in part as a payment of principal reducing the financing obligation. The real property assets in the transaction remain on the consolidated balance sheets and continue to be depreciated over the remaining useful lives. As of March 31, 2017 , approximately $12.2 million of the financing obligation was outstanding associated with the Leases. Acquired Capital Leases In connection with the FiBest Acquisition in December 2015 and the acquisition of BinOptics Corporation (“BinOptics Acquisition”) in December 2014 we assumed certain capital lease obligations, of which approximately $2.8 million was outstanding as of March 31, 2017 . As of March 31, 2017 , future minimum payments under capital lease obligations and financing obligations related to the Leases were as follows (in thousands): Fiscal year ending: Amount 2017 $ 1,120 2018 1,898 2019 1,794 2020 1,621 2021 1,487 Thereafter 20,541 Total minimum capital lease obligation payments $ 28,461

Intangible Assets

Intangible Assets	6 Months Ended
	Mar. 31, 2017
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 March 31, April 1, March 31, April 1, Cost of revenue $ 7,276 $ 6,642 $ 13,278 $ 13,809 Selling, general and administrative 7,163 6,304 13,630 10,727 Total $ 14,439 $ 12,946 $ 26,908 $ 24,536 Intangible assets consist of the following (in thousands): March 31, September 30, Acquired technology $ 243,020 $ 165,397 Customer relationships 536,234 207,674 In-process research and development 8,000 8,000 Trade name 3,400 3,400 Total $ 790,654 $ 384,471 Less accumulated amortization (151,777 ) (124,869 ) Intangible assets — net $ 638,877 $ 259,602 A summary of the activity in intangible assets and goodwill follows (in thousands): Intangible Assets Total Intangible Assets Acquired Technology Customer In-Process Research and Development Trade Name Goodwill Balance at September 30, 2016 $ 384,471 $ 165,397 $ 207,674 $ 8,000 $ 3,400 $ 120,024 Acquired 410,348 78,448 331,900 — — 191,066 Fair value adjustment — — — — — 220 Currency translation adjustment (4,165 ) (825 ) (3,340 ) — — (1,426 ) Balance at March 31, 2017 $ 790,654 $ 243,020 $ 536,234 $ 8,000 $ 3,400 $ 309,884 As of March 31, 2017 , our estimated amortization of our intangible assets in future fiscal years was as follows (in thousands): 2017 Remaining 2018 2019 2020 2021 Thereafter Total Amortization expense $ 39,962 84,966 92,474 90,091 81,335 238,649 $ 627,477 Our trade name is an indefinite-lived intangible assets. During development, in-process research and development (“IPR&D”) is not subject to amortization and is tested for impairment annually or more frequently if events or changes in circumstances indicate that the asset might be impaired. The impairment test consists of a comparison of the fair value to its carrying amount. If the carrying value exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. Once an IPR&D project is complete, it becomes a definite long-lived intangible asset and is evaluated for impairment in accordance with our policy for long-lived assets. Accumulated amortization for acquired technology and customer relationships were $89.8 million and $61.9 million , respectively, as of March 31, 2017 , and $76.7 million and $48.1 million , respectively, as of September 30, 2016 .

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Mar. 31, 2017
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 March 31, 2017 and September 30, 2016 . The outstanding shares of our common stock as of March 31, 2017 and September 30, 2016 , presented in the accompanying consolidated statements of stockholders’ equity exclude 200 and 3,300 unvested shares of restricted stock awards, respectively, issued as compensation to employees and directors that remained subject to forfeiture. 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 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 March 31, 2017 , 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 are recording the estimated fair values of the warrants as a long-term liability in the accompanying consolidated financial statements with changes in the estimated fair value being recorded in the accompanying statements of operations. See Note 5 - Fair Value for additional information related to the fair value of our warrant liability.

Earnings (Loss) Per Share

Earnings (Loss) Per Share	6 Months Ended
	Mar. 31, 2017
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 March 31, 2017 April 1, 2016 March 31, 2017 April 1, 2016 Numerator: Loss from continuing operations $ (134,267 ) $ (12,045 ) $ (136,438 ) $ (28,815 ) Income from discontinued operations 4,136 1,396 5,342 2,595 Net loss $ (130,131 ) $ (10,649 ) $ (131,096 ) $ (26,220 ) Net loss attributable to common stockholders $ (130,131 ) $ (10,649 ) $ (131,096 ) $ (26,220 ) Denominator: Weighted average common shares outstanding-basic 60,813 53,228 57,276 53,122 Weighted average common shares outstanding-diluted $ 60,813 $ 53,228 $ 57,276 $ 53,122 (Loss) earnings per share-basic: Continuing operations $ (2.21 ) $ (0.23 ) $ (2.38 ) $ (0.54 ) Discontinued operations 0.07 0.03 0.09 0.05 Net common stock loss per share-basic $ (2.14 ) $ (0.20 ) $ (2.29 ) $ (0.49 ) (Loss) earnings per share-diluted: Continuing operations $ (2.21 ) $ (0.23 ) $ (2.38 ) $ (0.54 ) Discontinued operations 0.07 0.03 0.09 0.05 Net common stock loss per share-diluted $ (2.14 ) $ (0.20 ) $ (2.29 ) $ (0.49 ) The table above excludes the effects of 2,031 and 2,139 shares for the three months ended March 31, 2017 and April 1, 2016 , respectively, and 1,953 and 2,081 shares for the six months ended March 31, 2017 and April 1, 2016 , respectively, of potential shares of common stock issuable upon exercise of stock options, restricted stock and stock units, and warrants as the inclusion would be antidilutive.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Mar. 31, 2017
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. Other than as set forth below, we were not involved in any material pending legal proceedings during the quarter ended March 31, 2017 . GaN Lawsuit Against Infineon. On April 26, 2016, we and our wholly-owned subsidiary Nitronex, LLC brought suit against Infineon Technologies Americas Corporation (“Infineon Americas”) and Infineon Technologies AG (“Infineon AG” and collectively, with Infineon Americas, “Infineon”) in the Federal District Court for the Central District of California, seeking injunctive relief, monetary damages, and specific performance of certain contractual obligations. On July 19, 2016, we filed a first amended complaint, and, on November 21, 2016, we filed a second amended complaint. After motions to dismiss certain claims from MACOM’s second amended complaint were denied on February 28, 2017, Infineon AG answered on March 24, 2017, asserting no counterclaims. Infineon Americas also answered and counterclaimed on March 24, 2017 and then submitted amended counterclaims on April 14, 2017, asserting counterclaims of patent infringement and breach of contract and seeking a declaration that a certain license agreement has been terminated. MACOM’s response to the counterclaims is currently due on April 28, 2017. The suit arises out of agreements relating to GaN patents that were executed in 2010 by Nitronex Corporation (acquired by us in 2014) and International Rectifier Corporation (“International Rectifier”) (acquired by Infineon AG in 2015). We assert claims for breach of contract, breach of the covenant of good faith and fair dealing, declaratory judgment of contractual rights, declaratory judgment of non-infringement of patents, and, against Infineon AG only, intentional interference with contract. If successful, the relief sought in our first amended complaint would, among other remedies, require Infineon to assign back to us certain GaN-related Nitronex patents that were previously assigned to International Rectifier and enjoin Infineon from proceeding with its marketing and sales of certain types of GaN-on-Si products. In an order dated October 31, 2016, the Court granted us a preliminary injunction against Infineon, which then issued on December 8, 2016 and was modified on March 6, 2017. The preliminary injunction declares that an exclusive licensing arrangement between us and Infineon that Infineon had purported to terminate is still in effect and prohibits Infineon Americas and others acting in concert with it from engaging in certain activities in our exclusive field, which includes RF power amplifiers for cellular base stations. Infineon appealed the preliminary injunction order to the Federal Circuit on January 3, 2017, and MACOM appealed the modification order on April 5, 2017. The first appeal is now fully briefed, but no date has been set for oral argument. MACOM’s brief in the second appeal is currently due on June 5, 2017. Meanwhile, the district court case is proceeding, with expedited discovery currently occurring on Infineon’s potential violations of the preliminary injunction and a case scheduling conference set for June 26, 2017. With respect to the above legal proceeding, we are not able to reasonably estimate the amount or range of any possible loss, and accordingly have not accrued or disclosed any related amounts of possible loss in the accompanying consolidated financial statements.

Restructurings

Restructurings	6 Months Ended
	Mar. 31, 2017
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 costs incurred and remaining balances included in accrued expenses for the six months ended March 31, 2017 (in thousands): Balance as of September 30, 2016 $ 3,104 Acquired liability 142 Current period expense 1,757 Payments (3,858 ) Balance as of March 31, 2017 $ 1,145 The restructuring expenses recorded to date are expected to be paid through the remainder of fiscal year 2017 . Our restructuring charges incurred to date are primarily employee related with non-employee related charges determined to be immaterial. We expect to incur additional restructuring costs of approximately $0.6 million to $1.6 million during the remainder of calendar year 2017 as we complete restructuring actions primarily associated with facility consolidations.

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	SHARE-BASED COMPENSATION Stock Plans As of March 31, 2017 , we had 16.4 million shares available for future issuance under our 2012 Omnibus Incentive Plan (as Amended and Restated) (the “2012 Plan”), and 3.1 million shares available for issuance under our Employee Stock Purchase Plan (“ESPP”). 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 (“RSAs”), restricted stock units (“RSUs”), performance-based 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 as described below. Options granted generally have a term of seven to ten years. Certain of the share-based awards granted and outstanding as of March 31, 2017 are subject to accelerated vesting upon a change in control. There were no modifications to share-based awards during the periods presented. As of March 31, 2017 , total unrecognized compensation cost related to the employee stock purchase plan was not material. Share-Based Compensation The following table shows a summary of share-based compensation expense included in the Condensed Consolidated Statements of Operations for the three and six months ended March 31, 2017 and April 1, 2016 (in thousands): Three Months Ended Six Months Ended March 31, April 1, March 31, April 1, Cost of revenue $ 679 $ 493 $ 1,399 $ 950 Research and development 2,727 1,671 4,671 3,508 Selling, general and administrative 6,144 3,680 11,661 8,768 Total share-based compensation expense $ 9,550 $ 5,844 $ 17,731 $ 13,226 As of March 31, 2017 , the total unrecognized compensation costs, adjusted for estimated forfeitures, related to outstanding stock options, restricted stock awards and units including awards with time-based and performance based vesting was $76.4 million , which we expect to recognize over a weighted-average period of 3.0 years. Stock Options We had 1.3 million stock options outstanding as of March 31, 2017 , with a weighted-average exercise price per share of $28.56 and weighted-average remaining contractual term of 5.6 years . The aggregate intrinsic value of the stock options outstanding as of March 31, 2017 was $26.9 million which represents our closing stock price value on the last trading day of the period in excess of the weighted-average exercise price multiplied by the number of options outstanding. During November 2016, we granted 310,000 non-qualified stock options with a grant date fair value of $4.1 million that are subject to vesting only upon the market price of the Company’s underlying public stock closing above a certain price target within seven years of the date of grant. These non-qualified stock options with market related vesting conditions are valued using a Monte Carlo simulation model, using a volatility rate of 32.2% , a risk-free rate of 1.84% , a strike price of $40.25 and a term of seven years . Share-based compensation expense is recognized regardless of the number of awards that are earned based on the market condition and is recognized on a straight-line basis over the estimated service period of approximately three years . If the required service period is not met for these options then the share-based compensation expense would be reversed. In the event that the Company’s common stock achieves the target price of $66.96 per share based on a 30 day trailing average prior to the end of the estimated service period, any remaining unamortized compensation cost will be recognized. During January 2017, we granted 10,000 non-qualified stock options with a grant date fair value of $0.2 million that are subject to vesting only upon the market price of the Company’s underlying public stock closing above a certain price target within seven years of the date of grant. These non-qualified stock options with market related vesting conditions are valued using a Monte Carlo simulation model, using a volatility rate of 34.5% , a risk-free rate of 2.25% , a strike price of $46.28 and a term of seven years . Share-based compensation expense is recognized regardless of the number of awards that are earned based on the market condition and is recognized on a straight-line basis over the estimated service period of approximately three years . If the required service period is not met for these options then the share-based compensation expense would be reversed. In the event that the Company’s common stock achieves the target price of $80.70 per share based on a 30 day trailing average prior to the end of the estimated service period, any remaining unamortized compensation cost will be recognized. The total intrinsic value of options exercised was $0.3 million and $1.8 million for the three and six months ended March 31, 2017 , respectively, and was $0.8 million and $2.7 million for the three and six months ended April 1, 2016 , respectively. Restricted Stock, Restricted Stock Units and Performance-Based Restricted Stock Units A summary of restricted stock, restricted stock unit and performance-based restricted stock unit activity for the six months ended March 31, 2017 , is as follows: Number of RSUs Weighted- Average Grate Date Fair Value Aggregate Intrinsic Value (in thousands) Balance at September 30, 2016 1,707,695 $ 32.76 $ 72,165 Granted 1,034,362 36.79 Vested and released (540,095 ) 26.91 Forfeited, canceled or expired (31,299 ) 33.53 Balance at March 31, 2017 2,170,663 $ 36.13 $ 104,835 Restricted stock, restricted stock units and performance-based restricted stock units that vested during the six months ended March 31, 2017 and April 1, 2016 had fair value of $10.0 million and $15.7 million as of the vesting date, respectively.

Income Taxes

Income Taxes	6 Months Ended
	Mar. 31, 2017
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. The difference between the U.S. federal statutory income tax rate of 35% and our effective income tax rates for the three and six months ended April 1, 2016 , was primarily impacted by changes in fair values of the common stock warrant liability which is neither deductible nor taxable for tax purposes, income taxed in foreign jurisdictions at generally lower tax rates, non-deductible compensation, research and development tax credits and non-deductible merger expenses, offset by U.S. state income taxes. The difference between the U.S. federal statutory income tax rate of 35% and our effective income tax rates for the three and six months ended March 31, 2017 was primarily driven by the establishment of a valuation allowance against our U.S. deferred tax assets. 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 positive and negative evidence or 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. A significant piece of objective negative evidence evaluated was the cumulative loss incurred over the three-year period ended March 31, 2017 which we believe limits our ability to consider other subjective evidence, such as our projections for future growth. Certain transaction and integration related expenses incurred in the U.S. associated primarily with the AppliedMicro Acquisition during the three months ended March 31, 2017 resulted for the first time in significant negative objective evidence in the form of adjusted cumulative losses in the U.S. over the past three-year period. This resulted in our determination that there was not sufficient objectively verifiable positive evidence to offset this negative objective evidence and we concluded that a full valuation allowance totaling $88.0 million was required for our U.S. deferred tax assets as of March 31, 2017 . In addition, a full valuation allowance was established against the U.S. deferred tax assets acquired in connection with the AppliedMicro Acquisition. The balance of the unrecognized tax benefit as of March 31, 2017 and September 30, 2016 did not change and remained at $1.7 million . The unrecognized tax benefits primarily relate to positions taken by us in our 2014 U.S. tax filings. The entire balance of unrecognized tax benefits, if recognized, will reduce income tax expense. It is our policy to recognize any interest and penalties accrued related to unrecognized tax benefits in income tax expense. During the quarters ended March 31, 2017 and September 30, 2016 , we did not make any accrual or payment of interest and penalties. As disclosed in Note 2 - Acquisiti ons, our purchase accounting for the AppliedMicro Acquisition, including income taxes, is preliminary and subject to revision upon obtaining and analyzing all information. As of March 31, 2017 , we recorded a full valuation allowance against the deferred tax assets acquired based on the factors described above. Our purchase accounting related to the FiBest Acquisition, including income taxes, was finalized during the three months ended December 30, 2016. We recorded an aggregate net deferred income tax liability estimated to be $11.6 million which includes a net deferred income tax asset of $2.5 million relating to net operating loss ("NOL") carryforwards and a net deferred income tax liability of $14.1 million related to the difference between the book and tax basis of the intangible and other assets acquired. Related to the Metelics Acquisition we do not anticipate the recording of any deferred taxes due to a Section 338(h) (10) election which will permit us to have tax basis equal to the purchase price.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Mar. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS GaAs Labs, LLC (“GaAs Labs”), a former stockholder and an affiliate of directors John and Susan Ocampo, continues to engage us to provide administrative and business development services to GaAs Labs on a time and materials basis. There are no minimum service requirements or payment obligations and the agreement may be terminated by either party with 30 days notice. In the six months ended March 31, 2017 and April 1, 2016 , we recorded no material billings to GaAs Labs. Cadence Design Systems, Inc. ("Cadence"), an affiliate of director Geoffrey Ribar, who joined our Board of Directors on March 22, 2017, provides us with certain engineering licenses on an ongoing basis. During the three months ended March 31, 2017 , we made payments of $1.5 million to Cadence subsequent to Mr. Ribar joining the Board of Directors. In the six months ended March 31, 2017 and April 1, 2016 , we recorded no material revenue associated with product sales to a public company with a common director.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	6 Months Ended
	Mar. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	SUPPLEMENTAL CASH FLOW INFORMATION As of March 31, 2017 and April 1, 2016 , we had $1.1 million and $0.7 million in unpaid amounts related to purchases of property and equipment included in accounts payable and accrued liabilities during each period, respectively. 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. In January 2017, we issued common stock with a fair value of $465.1 million in connection with the AppliedMicro Acquisition. This was accounted for as a non-cash transaction as no shares were purchased or sold as part of the transaction. The following is supplemental cash flow information regarding non-cash investing and financing activities (in thousands): Six Months Ended March 31, April 1, Cash paid for interest $ 16,668 $ 8,229 Cash (refunded) paid for income taxes $ (720 ) $ 722

Geographic and Significant Cust

Geographic and Significant Customer Information	6 Months Ended
	Mar. 31, 2017
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 income (loss). Information about our operations in different geographic regions, based upon customer locations, is presented below (in thousands): Three Months Ended Six Months Ended Revenue by Geographic Region March 31, April 1, March 31, April 1, United States $ 66,223 $ 36,502 $ 110,184 $ 70,984 China 39,859 34,565 87,337 65,284 Asia Pacific, excluding China (1) 65,288 52,444 115,040 94,180 Other Countries (2) 14,714 10,068 25,275 18,905 Total $ 186,084 $ 133,579 $ 337,836 $ 249,353 As of Long-Lived Assets by Geographic Region March 31, September 30, United States $ 97,873 $ 79,832 Asia Pacific (1) 16,764 16,614 Other Countries (2) 3,881 2,721 Total $ 118,518 $ 99,167 (1) Asia Pacific represents Taiwan, Hong Kong, Japan, Singapore, India, Thailand, South Korea, Australia, Malaysia and the Philippines. (2) No international country or region represented greater than 10% of the total net long-lived assets or revenue as of the dates presented, other than the Asia-Pacific region as presented above. 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 March 31, April 1, March 31, April 1, Customer A 11 % 17 % 16% 16% Customer B 10 % 11 % 11% 12% Customer D 7 % 12 % 7% 12% Customer E 3 % 10 % 4% 10% Accounts Receivable March 31, September 30, Customer A 10 % 13 % Customer B 13 % 14 % Customer C 12 % 1 % Customer D 8 % 16 % No other customer represented more than 10% of revenue or accounts receivable in the periods presented in the accompanying consolidated financial statements. For the three and six months ended March 31, 2017 , our top ten customers represented 56% and 57% of total revenue, respectively, and for the three and six months ended April 1, 2016 our top ten customers represented 66% and 64% of total revenue, respectively.

Summary of Significant Accoun27

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation— We have one reportable segment, semiconductors and modules. The accompanying 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	We have a 52 or 53-week fiscal year ending on the Friday closest to the last day of September. The fiscal years 2017 and 2016 include 52 weeks. To offset the effect of holidays, for fiscal years in which there are 53 weeks, we include the extra week arising in our fiscal years in the first quarter.
Use of Estimates	Use of Estimates —The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the U.S. 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 notes to our September 30, 2016 consolidated financial statements, which were included in our Annual Report on Form 10-K for fiscal year ended September 30, 2016 . In September 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments , which eliminates the requirement for an acquirer in a business combination to account for measurement-period adjustments retrospectively. Acquirers will now recognize measurement-period adjustments during the period in which they determine the amount of the adjustment. This ASU is effective for annual and interim reporting periods beginning after December 15, 2015, and should be applied prospectively to adjustments for provisional amounts that occur after the effective date. The adoption of this guidance did not have a material impact on our consolidated financial statements.

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Mar. 31, 2017
Business Combinations [Abstract]
Summary of Acquisitions	The following table summarizes the total estimated acquisition consideration (in thousands): Cash consideration paid to AppliedMicro common stockholders $ 287,060 Common stock issued (9,544,125 shares of our common stock at $47.53 per share) 453,632 Equity consideration for vested "in the money" stock options and unvested restricted stock units 2,143 Fair value of the replacement equity awards attributable to pre-acquisition service 9,307 Total consideration paid, excluding cash acquired $ 752,142
Schedule of Aggregate Purchase Price Allocated to Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed	The final allocation of purchase price as of December 30, 2016, is as follows (in thousands): Preliminary Allocation as of September 30, 2016 Allocation Adjustments Final Allocation Current assets $ 12,614 $ — $ 12,614 Intangible assets 20,900 — 20,900 Other assets 3,089 — 3,089 Total assets acquired 36,603 — 36,603 Liabilities assumed: Other liabilities 7,201 — 7,201 Total liabilities assumed 7,201 — 7,201 Net assets acquired 29,402 — 29,402 Consideration: Cash paid upon closing, net of cash acquired 37,125 — 37,125 Goodwill $ 7,723 $ — $ 7,723 The final allocation of purchase price as of December 30, 2016, is as follows (in thousands): Preliminary Allocation as of September 30, 2016 Allocation Adjustments Final Allocation Current assets $ 10,445 $ — $ 10,445 Intangible assets 45,650 — 45,650 Other assets 3,317 — 3,317 Total assets acquired 59,412 — 59,412 Liabilities assumed: Debt 11,627 — 11,627 Deferred income taxes 11,658 (106 ) 11,552 Other liabilities 3,968 326 4,294 Total liabilities assumed 27,253 220 27,473 Net assets acquired 32,159 (220 ) 31,939 Consideration: Cash paid upon closing, net of cash acquired 47,517 — 47,517 Goodwill $ 15,358 $ 220 $ 15,578 The preliminary allocation of purchase price as of March 31, 2017 is as follows (in thousands): Preliminary Allocation Current assets $ 70,338 Intangible assets 410,348 Assets held for sale 32,458 Other assets 13,504 Total assets acquired 526,648 Liabilities assumed: Liabilities held for sale 4,444 Other liabilities 17,890 Total liabilities assumed 22,334 Net assets acquired 504,314 Consideration: Cash paid upon closing 230,298 Common stock issued 455,775 Equity instruments issued 9,307 Total consideration $ 695,380 Goodwill $ 191,066
Components of Acquired Intangible Assets on a Preliminary Basis	The components of the acquired intangible assets were as follows (in thousands): Amount Useful Lives (Years) Developed technology $ 1,000 7 Customer relationships 19,900 10 $ 20,900 The components of the acquired intangible assets were as follows (in thousands): Amount Useful Lives (Years) Developed technology $ 9,400 7 Customer relationships 36,250 10 $ 45,650 The components of the acquired intangible assets were as follows (in thousands): Included in assets held for sale Included in retained business Useful Lives (Years) Developed technology $ 9,600 $ 78,448 7 years Customer relationships — 331,900 10 years $ 9,600 $ 410,348
Summary of Unaudited Supplemental Pro Forma Data	The following is a summary of FiBest revenue and earnings included in our accompanying condensed consolidated statements of operations for the three and six months ended April 1, 2016 (in thousands): Three Months Ended Six Months Ended April 1, 2016 April 1, 2016 Revenue $ 8,435 $ 11,105 Loss before income taxes (1,747 ) (2,558 ) The following is a summary of Metelics revenue and earnings included in our accompanying condensed consolidated statements of operations for the three and six months ended April 1, 2016 (in thousands): Three Months Ended Six Months Ended April 1, 2016 April 1, 2016 Revenue $ 10,345 $ 12,252 Income before income taxes (220 ) (174 ) This pro forma data is presented for informational purposes only and does not purport to be indicative of our future results of operations. Six Months Ended March 31, 2017 April 1, 2016 Revenue $ 394,792 $ 329,923 Loss from continuing operations (84,543 ) (62,937 ) Loss from discontinued operations (19,316 ) (35,764 ) The following is a summary of AppliedMicro revenue and earnings included in our accompanying condensed consolidated statements of operations for the three months ended March 31, 2017 (in thousands): Three Months Ended March 31, 2017 Revenue $ 36,445 Loss from continuing operations (30,304 ) Loss from discontinued operations (16,430 ) This pro forma data is presented for informational purposes only and does not purport to be indicative of our future results of operations. Three Months Ended Six Months Ended April 1, 2016 April 1, 2016 Revenue $ 133,579 $ 258,189 Net loss (10,119 ) (25,703 ) This pro forma data is presented for informational purposes only and does not purport to be indicative of our future results of operations. Three Months Ended Six Months Ended April 1, 2016 April 1, 2016 Revenue $ 133,579 $ 256,979 Net loss (11,531 ) (26,785 )

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Mar. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
Summary of Operating Results through Dates of Divestiture Related to Divested Businesses	The accompanying consolidated statements of operations includes the following operating results related to these discontinued operations (in thousands): Three Months Ended Six Months Ended March 31, 2017 April 1, 2016 March 31, 2017 April 1, 2016 Revenue (1) $ 259 $ — $ 259 $ — Cost of revenue (1) 1,620 — 1,620 — Gross profit (1,361 ) — (1,361 ) — Operating expenses: Research and development (1) 8,325 — 8,325 — Selling, general and administrative (1) 6,744 — 6,744 — Total operating expenses 15,069 — 15,069 — Income from operations (16,430 ) — (16,430 ) — Other income (2) 1,875 1,875 3,750 3,750 Gain on sale (2) 18,022 308 18,022 308 Income before income taxes 3,467 2,183 5,342 4,058 Income tax provision (669 ) 787 — 1,463 Income from discontinued operations $ 4,136 $ 1,396 $ 5,342 $ 2,595 Above includes depreciation and amortization of $ 2,535 $ — $ 2,535 $ — Cash flow from operating activities 12,487 — 12,487 — Cash flow from investing activities (663 ) 3,750 (663 ) 3,750 Cash flow from financing activities (32,201 ) — (32,201 ) —

Short Term Investments (Tables)

Short Term Investments (Tables)	6 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Summary of Available for Sale Investments	September 30, 2016 Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Aggregate Fair Value Corporate bonds $ 14,894 $ 9 $ (103 ) $ 14,800 Commercial paper 2,978 — (4 ) 2,974 Agency bonds 6,004 1 (3 ) 6,002 Total investments $ 23,876 $ 10 $ (110 ) $ 23,776 Money market funds include restricted investments in mutual funds acquired in connection with the acquisition of AppliedMicro, which are expected to be liquidated during our fiscal quarter ending June 30, 2017. The amortized cost, gross unrealized holding gains or losses, and fair value of our investments by major investment type as of March 31, 2017 and September 30, 2016 are summarized in the tables below (in thousands): March 31, 2017 Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Aggregate Fair Value Corporate bonds $ 15,015 $ — $ (105 ) $ 14,910 Commercial paper 10,909 — (7 ) 10,902 Agency bonds 2,956 — (7 ) 2,949 Money market funds $ 2,810 $ — $ — $ 2,810 Total investments $ 31,690 $ — $ (119 ) $ 31,571 September 30, 2016 Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Aggregate Fair Value Corporate bonds $ 14,894 $ 9 $ (103 ) $ 14,800 Commercial paper 2,978 — (4 ) 2,974 Agency bonds 6,004 1 (3 ) 6,002 Total investments $ 23,876 $ 10 $ (110 ) $ 23,776
Summary of Contractual Maturities of Investments	The contractual maturities of investments were as follows (in thousands): March 31, 2017 September 30, 2016 Less than 1 year $ 15,200 $ 8,976 Over 1 year 16,371 14,800 Total investments $ 31,571 $ 23,776

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Mar. 31, 2017
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): March 31, 2017 Fair Value Active Markets for Identical Assets (Level 1) Observable Inputs (Level 2) Unobservable Inputs (Level 3) Assets Money market funds $ 2,935 $ 2,935 $ — $ — Commercial paper 10,902 — 10,902 — Agency bonds 2,949 — 2,949 — Corporate bonds 14,910 — 14,910 — Total assets measured at fair value $ 31,696 $ 2,935 $ 28,761 $ — Liabilities Contingent consideration $ 481 $ — $ — $ 481 Common stock warrant liability 45,648 — — 45,648 Total liabilities measured at fair value $ 46,129 $ — $ — $ 46,129 September 30, 2016 Fair Value Active Markets for Identical Assets (Level 1) Observable Inputs (Level 2) Unobservable Inputs (Level 3) Assets Money market funds $ 1,172 $ 1,172 $ — $ — Commercial paper 102,928 — 102,928 — US treasuries and agency bonds 6,002 — 6,002 — Corporate bonds 14,799 — 14,799 — Total assets measured at fair value $ 124,901 $ 1,172 $ 123,729 $ — Liabilities Contingent consideration $ 848 $ — $ — $ 848 Common stock warrant liability 38,253 — — 38,253 Total liabilities measured at fair value $ 39,101 $ — $ — $ 39,101
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 March 31, 2017 September 30, 2016 Contingent consideration Discounted cash flow Discount rate 10.6% 12.9% Probability of achievement 75% - 100% 75% - 100% Timing of cash flows 8 months 1 year Warrant liability Black-Scholes model Volatility 42.9% 43.2% Discount rate 1.76% 1.14% Expected life 3.73 years 4.23 years Exercise price $14.05 $14.05
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 30, Net Realized/Unrealized Losses Included in Earnings Sales and Settlements March 31, Contingent consideration $ 848 $ 33 $ (400 ) $ 481 Common stock warrant liability $ 38,253 $ 7,395 $ — $ 45,648 October 2, Net Realized/Unrealized Losses Included in Earnings Sales and Settlements April 1, Contingent consideration $ 1,150 $ 46 $ (400 ) $ 796 Common stock warrant liability $ 21,822 $ 19,079 $ — $ 40,901
Changes in Assets 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 30, Net Realized/Unrealized Losses Included in Earnings Sales and Settlements March 31, Contingent consideration $ 848 $ 33 $ (400 ) $ 481 Common stock warrant liability $ 38,253 $ 7,395 $ — $ 45,648 October 2, Net Realized/Unrealized Losses Included in Earnings Sales and Settlements April 1, Contingent consideration $ 1,150 $ 46 $ (400 ) $ 796 Common stock warrant liability $ 21,822 $ 19,079 $ — $ 40,901

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Mar. 31, 2017
Inventory Disclosure [Abstract]
Components of Inventories	Inventories consist of the following (in thousands): March 31, September 30, Raw materials $ 69,972 $ 67,378 Work-in-process 13,702 9,157 Finished goods 55,948 38,400 Total $ 139,622 $ 114,935

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	6 Months Ended
	Mar. 31, 2017
Property, Plant and Equipment [Abstract]
Components of Property, Plant and Equipment	Property, plant and equipment consists of the following (in thousands): March 31, September 30, Land, buildings and improvements $ 16,653 $ 12,572 Construction in process 13,196 9,415 Machinery and equipment 146,469 129,639 Leasehold improvements 13,215 12,152 Furniture and fixtures 2,767 1,469 Computer equipment and software 17,797 12,954 Total property and equipment $ 210,097 $ 178,201 Less accumulated depreciation and amortization (91,579 ) (79,034 ) Property and equipment, net $ 118,518 $ 99,167

Debt (Tables)

Debt (Tables)	6 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Schedule of Remained Outstanding on Term Loans	As of March 31, 2017 , the following remained outstanding on the Term Loans (in thousands): Principal balance $ 588,462 Unamortized discount (3,336 ) Total term loans $ 585,126 Current portion 6,051 Long-term, less current portion $ 579,075
Schedule of Minimum Principal Payments under Term Loans	As of March 31, 2017 , the minimum principal payments under the Term Loans in future fiscal years were as follows (in thousands): 2017 (rest of fiscal year) $ 3,026 2018 6,051 2019 6,051 2020 6,051 2021 567,283 Total $ 588,462

Capital Lease and Financing O35

Capital Lease and Financing Obligations (Tables)	6 Months Ended
	Mar. 31, 2017
Leases [Abstract]
Schedule of Future Minimum Lease Payments for Capital Leases	As of March 31, 2017 , future minimum payments under capital lease obligations and financing obligations related to the Leases were as follows (in thousands): Fiscal year ending: Amount 2017 $ 1,120 2018 1,898 2019 1,794 2020 1,621 2021 1,487 Thereafter 20,541 Total minimum capital lease obligation payments $ 28,461

Intangible Assets (Tables)

Intangible Assets (Tables)	6 Months Ended
	Mar. 31, 2017
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 March 31, April 1, March 31, April 1, Cost of revenue $ 7,276 $ 6,642 $ 13,278 $ 13,809 Selling, general and administrative 7,163 6,304 13,630 10,727 Total $ 14,439 $ 12,946 $ 26,908 $ 24,536
Summary of Intangible Assets	Intangible assets consist of the following (in thousands): March 31, September 30, Acquired technology $ 243,020 $ 165,397 Customer relationships 536,234 207,674 In-process research and development 8,000 8,000 Trade name 3,400 3,400 Total $ 790,654 $ 384,471 Less accumulated amortization (151,777 ) (124,869 ) Intangible assets — net $ 638,877 $ 259,602
Summary of Activity in Intangible Assets and Goodwill	A summary of the activity in intangible assets and goodwill follows (in thousands): Intangible Assets Total Intangible Assets Acquired Technology Customer In-Process Research and Development Trade Name Goodwill Balance at September 30, 2016 $ 384,471 $ 165,397 $ 207,674 $ 8,000 $ 3,400 $ 120,024 Acquired 410,348 78,448 331,900 — — 191,066 Fair value adjustment — — — — — 220 Currency translation adjustment (4,165 ) (825 ) (3,340 ) — — (1,426 ) Balance at March 31, 2017 $ 790,654 $ 243,020 $ 536,234 $ 8,000 $ 3,400 $ 309,884
Summary of Estimated Amortization of Intangible Assets in Future Fiscal Years	As of March 31, 2017 , our estimated amortization of our intangible assets in future fiscal years was as follows (in thousands): 2017 Remaining 2018 2019 2020 2021 Thereafter Total Amortization expense $ 39,962 84,966 92,474 90,091 81,335 238,649 $ 627,477

Earnings (Loss) Per Share (Tabl

Earnings (Loss) Per Share (Tables)	6 Months Ended
	Mar. 31, 2017
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 March 31, 2017 April 1, 2016 March 31, 2017 April 1, 2016 Numerator: Loss from continuing operations $ (134,267 ) $ (12,045 ) $ (136,438 ) $ (28,815 ) Income from discontinued operations 4,136 1,396 5,342 2,595 Net loss $ (130,131 ) $ (10,649 ) $ (131,096 ) $ (26,220 ) Net loss attributable to common stockholders $ (130,131 ) $ (10,649 ) $ (131,096 ) $ (26,220 ) Denominator: Weighted average common shares outstanding-basic 60,813 53,228 57,276 53,122 Weighted average common shares outstanding-diluted $ 60,813 $ 53,228 $ 57,276 $ 53,122 (Loss) earnings per share-basic: Continuing operations $ (2.21 ) $ (0.23 ) $ (2.38 ) $ (0.54 ) Discontinued operations 0.07 0.03 0.09 0.05 Net common stock loss per share-basic $ (2.14 ) $ (0.20 ) $ (2.29 ) $ (0.49 ) (Loss) earnings per share-diluted: Continuing operations $ (2.21 ) $ (0.23 ) $ (2.38 ) $ (0.54 ) Discontinued operations 0.07 0.03 0.09 0.05 Net common stock loss per share-diluted $ (2.14 ) $ (0.20 ) $ (2.29 ) $ (0.49 )

Restructurings (Tables)

Restructurings (Tables)	6 Months Ended
	Mar. 31, 2017
Restructuring and Related Activities [Abstract]
Summary of Costs Incurred and Remaining Balances Included in Accrued Expenses	The following is a summary of the costs incurred and remaining balances included in accrued expenses for the six months ended March 31, 2017 (in thousands): Balance as of September 30, 2016 $ 3,104 Acquired liability 142 Current period expense 1,757 Payments (3,858 ) Balance as of March 31, 2017 $ 1,145

Share-Based Compensation (Table

Share-Based Compensation (Tables)	6 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [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 for the three and six months ended March 31, 2017 and April 1, 2016 (in thousands): Three Months Ended Six Months Ended March 31, April 1, March 31, April 1, Cost of revenue $ 679 $ 493 $ 1,399 $ 950 Research and development 2,727 1,671 4,671 3,508 Selling, general and administrative 6,144 3,680 11,661 8,768 Total share-based compensation expense $ 9,550 $ 5,844 $ 17,731 $ 13,226
Summary of Restricted Stock, Restricted Stock Unit and Performance-based Restricted Stock Unit Activity	A summary of restricted stock, restricted stock unit and performance-based restricted stock unit activity for the six months ended March 31, 2017 , is as follows: Number of RSUs Weighted- Average Grate Date Fair Value Aggregate Intrinsic Value (in thousands) Balance at September 30, 2016 1,707,695 $ 32.76 $ 72,165 Granted 1,034,362 36.79 Vested and released (540,095 ) 26.91 Forfeited, canceled or expired (31,299 ) 33.53 Balance at March 31, 2017 2,170,663 $ 36.13 $ 104,835

Supplemental Cash Flow Inform40

Supplemental Cash Flow Information (Tables)	6 Months Ended
	Mar. 31, 2017
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 March 31, April 1, Cash paid for interest $ 16,668 $ 8,229 Cash (refunded) paid for income taxes $ (720 ) $ 722

Geographic and Significant Cu41

Geographic and Significant Customer Information (Tables)	6 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Summary of Different Geographic Regions	Information about our operations in different geographic regions, based upon customer locations, is presented below (in thousands): Three Months Ended Six Months Ended Revenue by Geographic Region March 31, April 1, March 31, April 1, United States $ 66,223 $ 36,502 $ 110,184 $ 70,984 China 39,859 34,565 87,337 65,284 Asia Pacific, excluding China (1) 65,288 52,444 115,040 94,180 Other Countries (2) 14,714 10,068 25,275 18,905 Total $ 186,084 $ 133,579 $ 337,836 $ 249,353 As of Long-Lived Assets by Geographic Region March 31, September 30, United States $ 97,873 $ 79,832 Asia Pacific (1) 16,764 16,614 Other Countries (2) 3,881 2,721 Total $ 118,518 $ 99,167 (1) Asia Pacific represents Taiwan, Hong Kong, Japan, Singapore, India, Thailand, South Korea, Australia, Malaysia and the Philippines. (2) No international country or region represented greater than 10% of the total net long-lived assets or revenue as of the dates presented, other than the Asia-Pacific region as presented above.
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 March 31, April 1, March 31, April 1, Customer A 11 % 17 % 16% 16% Customer B 10 % 11 % 11% 12% Customer D 7 % 12 % 7% 12% Customer E 3 % 10 % 4% 10% Accounts Receivable March 31, September 30, Customer A 10 % 13 % Customer B 13 % 14 % Customer C 12 % 1 % Customer D 8 % 16 %

Summary of Significant Accoun42

Summary of Significant Accounting Policies (Details)	6 Months Ended
	Mar. 31, 2017segment
Accounting Policies [Abstract]
Number of reportable operating segment	1

Acquisitions - Additional Infor

Acquisitions - Additional Information (Details) - USD ($)	Jan. 26, 2017	Dec. 14, 2015	Dec. 09, 2015	Mar. 31, 2017	Dec. 30, 2016	Mar. 31, 2017	Apr. 01, 2016
Business Acquisition [Line Items]
Consideration paid, equity instruments issued						$ 465,082,000	$ 0
Applied Micro Circuits Corporation [Member]
Business Acquisition [Line Items]
Total consideration paid	$ 695,400,000					695,380,000
Cash consideration paid, excluding consideration paid for vested equity awards	$ 287,100,000
Number of shares issued for acquisition (in shares)	9,544,125
Fair value of equity issued	$ 465,082,000
Consideration paid, equity instruments issued	453,632,000
Transaction costs				$ 8,300,000		$ 11,800,000
Weighted-average life of identified intangible assets acquired						9 years 4 months 24 days
Cash consideration paid	287,060,000
Debt assumed on acquisition				$ 4,444,000		$ 4,444,000
Applied Micro Circuits Corporation [Member] | Equity Issuance Costs [Member]
Business Acquisition [Line Items]
Transaction costs						1,000,000
Applied Micro Circuits Corporation [Member] | Stock Options And Restricted Stock [Member]
Business Acquisition [Line Items]
Fair value of equity instruments transferred	14,500,000
Consideration paid, equity instruments issued	$ 9,300,000					9,307,000
Applied Micro Circuits Corporation [Member] | Common Stock [Member]
Business Acquisition [Line Items]
Consideration paid, equity instruments issued						455,775,000
Fi Best Limited [Member]
Business Acquisition [Line Items]
Total consideration paid			$ 59,100,000
Cash consideration paid			47,500,000
Debt assumed on acquisition			$ 11,600,000		$ 11,627,000
Adjustment of deferred tax liability associated with acquisition					$ 200,000
Fi Best Limited [Member] | Selling, General and Administrative [Member]
Business Acquisition [Line Items]
Transaction costs						$ 0	2,700,000
Aeroflex/Metelics Inc [Member]
Business Acquisition [Line Items]
Weighted-average life of identified intangible assets acquired						9 years 10 months 24 days
Cash consideration paid		$ 38,000,000
Aeroflex/Metelics Inc [Member] | Selling, General and Administrative [Member]
Business Acquisition [Line Items]
Transaction costs						$ 0	$ 500,000

Acquisitions Acquisitions - Acq

Acquisitions Acquisitions - Acquisition Consideration Transferred (Details) - USD ($) $ / shares in Units, $ in Thousands	Jan. 26, 2017	Mar. 31, 2017	Apr. 01, 2016
Business Acquisition [Line Items]
Consideration paid, equity instruments issued		$ 465,082	$ 0
Applied Micro Circuits Corporation [Member]
Business Acquisition [Line Items]
Cash Acquired from Acquisition	$ 56,800
Cash consideration paid to AppliedMicro common stockholders	287,060
Consideration paid, equity instruments issued	453,632
Equity consideration for vested in the money stock options and unvested restricted stock units	2,143
Fair value of the replacement equity awards attributable to pre-acquisition service	9,307
Total consideration paid, excluding cash acquired	$ 752,142
Number of shares issued for acquisition (in shares)	9,544,125
Price per share issued for acquisition (in dollars per share)	$ 47.53

Acquisitions - Schedule of Aggr

Acquisitions - Schedule of Aggregate Purchase Price Allocated to Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jan. 26, 2017	Dec. 30, 2016	Dec. 09, 2015	Mar. 31, 2017	Apr. 01, 2016	Sep. 30, 2016
Consideration:
Cash paid upon closing, net of cash acquired				$ 229,423	$ 85,516
Equity instruments issued				465,082	$ 0
Goodwill				309,884		$ 120,024
Fi Best Limited [Member]
Business Acquisition [Line Items]
Current assets		$ 10,445
Intangible assets		45,650
Other assets		3,317
Total assets acquired		59,412
Liabilities assumed:
Debt		11,627	$ 11,600
Deferred income taxes		11,552		11,600
Other liabilities		4,294
Total liabilities assumed		27,473
Net assets acquired		31,939
Consideration:
Cash paid upon closing, net of cash acquired		47,517
Total consideration paid, excluding cash acquired			$ 59,100
Goodwill		15,578
Fi Best Limited [Member] | Preliminary Allocation [Member]
Business Acquisition [Line Items]
Current assets		10,445
Intangible assets		45,650
Other assets		3,317
Total assets acquired		59,412
Liabilities assumed:
Debt		11,627
Deferred income taxes		11,658
Other liabilities		3,968
Total liabilities assumed		27,253
Net assets acquired		32,159
Consideration:
Cash paid upon closing, net of cash acquired		47,517
Goodwill		15,358
Fi Best Limited [Member] | Allocation Adjustments [Member]
Business Acquisition [Line Items]
Current assets		0
Intangible assets		0
Other assets		0
Total assets acquired		0
Liabilities assumed:
Debt		0
Deferred income taxes		(106)
Other liabilities		326
Total liabilities assumed		220
Net assets acquired		(220)
Consideration:
Cash paid upon closing, net of cash acquired		0
Goodwill		220
Aeroflex/Metelics Inc [Member]
Business Acquisition [Line Items]
Current assets		12,614
Intangible assets		20,900
Other assets		3,089
Total assets acquired		36,603
Liabilities assumed:
Other liabilities		7,201
Total liabilities assumed		7,201
Net assets acquired		29,402
Consideration:
Cash paid upon closing, net of cash acquired		37,125
Goodwill		7,723
Aeroflex/Metelics Inc [Member] | Preliminary Allocation [Member]
Business Acquisition [Line Items]
Current assets		12,614
Intangible assets		20,900
Other assets		3,089
Total assets acquired		36,603
Liabilities assumed:
Other liabilities		7,201
Total liabilities assumed		7,201
Net assets acquired		29,402
Consideration:
Cash paid upon closing, net of cash acquired		37,125
Goodwill		7,723
Aeroflex/Metelics Inc [Member] | Allocation Adjustments [Member]
Business Acquisition [Line Items]
Current assets		0
Intangible assets		0
Other assets		0
Total assets acquired		0
Liabilities assumed:
Other liabilities		0
Total liabilities assumed		0
Net assets acquired		0
Consideration:
Cash paid upon closing, net of cash acquired		0
Goodwill		$ 0
Applied Micro Circuits Corporation [Member]
Business Acquisition [Line Items]
Current assets				70,338
Intangible assets				410,348
Assets held for sale				32,458
Other assets				13,504
Total assets acquired				526,648
Liabilities assumed:
Debt				4,444
Other liabilities				17,890
Total liabilities assumed				22,334
Net assets acquired				504,314
Consideration:
Cash paid upon closing, net of cash acquired				230,298
Equity instruments issued	$ 453,632
Total consideration paid, excluding cash acquired	695,400			695,380
Goodwill				191,066
Applied Micro Circuits Corporation [Member] | Stock Options And Restricted Stock [Member]
Consideration:
Equity instruments issued	$ 9,300			9,307
Applied Micro Circuits Corporation [Member] | Common Stock [Member]
Consideration:
Equity instruments issued				$ 455,775

Acquisitions - Components of Ac

Acquisitions - Components of Acquired Intangible Assets on a Preliminary Basis (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2017USD ($)
Applied Micro Circuits Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 410,348
Applied Micro Circuits Corporation [Member] | Discontinued Operations, Held-for-sale [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	9,600
Fi Best Limited [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	45,650
Aeroflex/Metelics Inc [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	20,900
Developed Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	78,448
Developed Technology [Member] | Applied Micro Circuits Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 78,448
Useful Lives (Years)	7 years
Developed Technology [Member] | Applied Micro Circuits Corporation [Member] | Discontinued Operations, Held-for-sale [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 9,600
Developed Technology [Member] | Fi Best Limited [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 9,400
Useful Lives (Years)	7 years
Developed Technology [Member] | Aeroflex/Metelics Inc [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 1,000
Useful Lives (Years)	7 years
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 331,900
Customer Relationships [Member] | Applied Micro Circuits Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 331,900
Useful Lives (Years)	10 years
Customer Relationships [Member] | Applied Micro Circuits Corporation [Member] | Discontinued Operations, Held-for-sale [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 0
Customer Relationships [Member] | Fi Best Limited [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 36,250
Useful Lives (Years)	10 years
Customer Relationships [Member] | Aeroflex/Metelics Inc [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 19,900
Useful Lives (Years)	10 years

Acquisitions - Summary of Reven

Acquisitions - Summary of Revenue and Earnings (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Business Acquisition [Line Items]
Loss from discontinued operations	$ 4,136	$ 1,396	$ 5,342	$ 2,595
Applied Micro Circuits Corporation [Member]
Business Acquisition [Line Items]
Revenue	36,445
Loss from continuing operations	(30,304)
Loss from discontinued operations	$ (16,430)
Fi Best Limited [Member]
Business Acquisition [Line Items]
Revenue		8,435		11,105
Loss from continuing operations		(1,747)		(2,558)
Aeroflex/Metelics Inc [Member]
Business Acquisition [Line Items]
Revenue		10,345		12,252
Loss from continuing operations		$ (220)		$ (174)

Acquisitions - Summary of Unaud

Acquisitions - Summary of Unaudited Supplemental Pro Forma Data (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Applied Micro Circuits Corporation [Member]
Business Acquisition [Line Items]
Revenue		$ 394,792	$ 329,923
Loss from continuing operations		(84,543)	(62,937)
Loss from discontinued operations		$ (19,316)	(35,764)
Fi Best Limited [Member]
Business Acquisition [Line Items]
Revenue	$ 133,579		256,979
Loss from continuing operations	(11,531)		(26,785)
Aeroflex/Metelics Inc [Member]
Business Acquisition [Line Items]
Revenue	133,579		258,189
Loss from continuing operations	$ (10,119)		$ (25,703)

Discontinued Operations - Addit

Discontinued Operations - Additional information (Details) - USD ($)	Aug. 17, 2015	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale (2)		$ 18,022,000	$ 308,000	$ 18,022,000	$ 308,000
Automotive Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration on sale of business	$ 82,100,000
Working capital and other adjustments payable	$ 18,000,000
Pending resolution contingencies period under indemnification agreement	18 months
Gain on sale (2)				$ 18,000,000
Automotive Business [Member] | Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Additional cash proceeds to be received from revenue based earnout	$ 30,000,000
Consulting Agreement [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Non design advisory services period	2 years
Consulting Agreement [Member] | Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration on sale of business	$ 15,000,000

Discontinued Operations - Summa

Discontinued Operations - Summary of Operating Results through Dates of Divestiture Related to Divested Businesses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Discontinued Operations and Disposal Groups [Abstract]
Revenue (1)	$ 259	$ 0	$ 259	$ 0
Cost of revenue (1)	1,620	0	1,620	0
Gross profit	(1,361)	0	(1,361)	0
Operating expenses:
Research and development (1)	8,325	0	8,325	0
Selling, general and administrative (1)	6,744	0	6,744	0
Total operating expenses	15,069	0	15,069	0
Income from operations	(16,430)	0	(16,430)	0
Other income (2)	1,875	1,875	3,750	3,750
Gain on sale (2)	18,022	308	18,022	308
Income before income taxes	3,467	2,183	5,342	4,058
Income tax provision	(669)	787	0	1,463
Income from discontinued operations	4,136	1,396	5,342	2,595
Above includes depreciation and amortization of	2,535	0	2,535	0
Cash flow from operating activities	12,487	0	12,487	0
Cash flow from investing activities	(663)	3,750	(663)	3,750
Cash Provided by (Used in) Financing Activities, Discontinued Operations	$ (32,201)	$ 0	$ (32,201)	$ 0

Investments - Summary of Availa

Investments - Summary of Available for Sale Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 31,690	$ 23,876
Gross Unrealized Holding Gains	0	10
Gross Unrealized Holding Losses	(119)	(110)
Aggregate Fair Value	31,571	23,776
Agency Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,956	6,004
Gross Unrealized Holding Gains	0	1
Gross Unrealized Holding Losses	(7)	(3)
Aggregate Fair Value	2,949	6,002
Money Market Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,810
Gross Unrealized Holding Gains	0
Gross Unrealized Holding Losses	0
Aggregate Fair Value	2,810
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	15,015	14,894
Gross Unrealized Holding Gains	0	9
Gross Unrealized Holding Losses	(105)	(103)
Aggregate Fair Value	14,910	14,800
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	10,909	2,978
Gross Unrealized Holding Gains	0	0
Gross Unrealized Holding Losses	(7)	(4)
Aggregate Fair Value	$ 10,902	$ 2,974

Short Term Investments - Change

Short Term Investments - Change in Available for Sale Investments (Details) $ in Thousands	Mar. 31, 2017USD ($)
Movement in Available-for-sale Securities [Roll Forward]
Balance at beginning of period	$ 23,776
Balance at end of period	31,571
Agency Bonds [Member]
Movement in Available-for-sale Securities [Roll Forward]
Balance at beginning of period	6,002
Balance at end of period	2,949
Corporate Debt Securities [Member]
Movement in Available-for-sale Securities [Roll Forward]
Balance at beginning of period	14,800
Balance at end of period	$ 14,910

Investments - Summary of Contra

Investments - Summary of Contractual Maturities of Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Less than 1 year	$ 15,200	$ 8,976
Over 1 year	16,371	14,800
Total investments	$ 31,571	$ 23,776

Fair Value - Assets and Liabili

Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 31,696	$ 124,901
Total liabilities measured at fair value	46,129	39,101
Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	481	848
Common Stock Warrant Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	45,648	38,253
US Treasuries and Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value		6,002
Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	14,910	14,799
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,935	1,172
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	10,902	102,928
Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,949
Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,935	1,172
Total liabilities measured at fair value	0	0
Active Markets for Identical Assets (Level 1) [Member] | Contingent Consideration [Member]
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) [Member] | Common Stock Warrant Liability [Member]
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) [Member] | US Treasuries and Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value		0
Active Markets for Identical Assets (Level 1) [Member] | Corporate Bonds [Member]
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) [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,935	1,172
Active Markets for Identical Assets (Level 1) [Member] | Commercial Paper [Member]
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) [Member] | Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0
Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	28,761	123,729
Total liabilities measured at fair value	0	0
Observable Inputs (Level 2) [Member] | Contingent Consideration [Member]
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) [Member] | Common Stock Warrant Liability [Member]
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) [Member] | US Treasuries and Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value		6,002
Observable Inputs (Level 2) [Member] | Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	14,910	14,799
Observable Inputs (Level 2) [Member] | Money Market Funds [Member]
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) [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	10,902	102,928
Observable Inputs (Level 2) [Member] | Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,949
Unobservable Inputs (Level 3) [Member]
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	46,129	39,101
Unobservable Inputs (Level 3) [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	481	848
Unobservable Inputs (Level 3) [Member] | Common Stock Warrant Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	45,648	38,253
Unobservable Inputs (Level 3) [Member] | US Treasuries and Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value		0
Unobservable Inputs (Level 3) [Member] | Corporate Bonds [Member]
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) [Member] | Money Market Funds [Member]
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) [Member] | Commercial Paper [Member]
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) [Member] | Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 0

Fair Value Fair Value - Quantit

Fair Value Fair Value - Quantitative Information Used in Fair Value Calculation of Level 3 Liabilities (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Mar. 31, 2017	Sep. 30, 2016
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
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 March 31, 2017 September 30, 2016 Contingent consideration Discounted cash flow Discount rate 10.6% 12.9% Probability of achievement 75% - 100% 75% - 100% Timing of cash flows 8 months 1 year Warrant liability Black-Scholes model Volatility 42.9% 43.2% Discount rate 1.76% 1.14% Expected life 3.73 years 4.23 years Exercise price $14.05 $14.05
Discount rate	8.50%
Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Total liabilities measured at fair value	$ 46,129	$ 39,101
Fair Value, Measurements, Recurring [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Total liabilities measured at fair value	46,129	39,101
Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Total liabilities measured at fair value	481	848
Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Total liabilities measured at fair value	$ 481	$ 848
Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member] | Income Approach Valuation Technique [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Discount rate	10.60%	12.90%
Expected life	8 months	1 year
Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member] | Minimum [Member] | Income Approach Valuation Technique [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Probability of Occurrence	75.00%	75.00%
Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member] | Maximum [Member] | Income Approach Valuation Technique [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Probability of Occurrence	100.00%	100.00%
Fair Value, Measurements, Recurring [Member] | Common Stock Warrant Liability [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Total liabilities measured at fair value	$ 45,648	$ 38,253
Fair Value, Measurements, Recurring [Member] | Common Stock Warrant Liability [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Total liabilities measured at fair value	$ 45,648	$ 38,253
Fair Value, Measurements, Recurring [Member] | Common Stock Warrant Liability [Member] | Market Approach Valuation Technique [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Discount rate	1.76%	1.14%
Expected life	3 years 8 months 23 days	4 years 2 months 23 days
Expected volatility rate	42.90%	43.20%
Exercise price (in usd per share)	$ 14.05	$ 14.05

Fair Value - Changes in Assets

Fair Value - Changes in Assets and Liabilities with Inputs Classified within Level 3 of Fair Value (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016
Contingent Consideration [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 848	$ 1,150
Net Realized/Unrealized Losses Included in Earnings	33	46
Sales and Settlements	(400)	(400)
Balance at end of period	481	796
Common Stock Warrant Liability [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	38,253	21,822
Net Realized/Unrealized Losses Included in Earnings	7,395	19,079
Sales and Settlements	0	0
Balance at end of period	$ 45,648	$ 40,901

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Inventory Disclosure [Abstract]
Raw materials	$ 69,972	$ 67,378
Work-in-process	13,702	9,157
Finished goods	55,948	38,400
Total	$ 139,622	$ 114,935

Property Plant and Equipment -

Property Plant and Equipment - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 210,097	$ 178,201
Less accumulated depreciation and amortization	(91,579)	(79,034)
Property and equipment, net	118,518	99,167
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	16,653	12,572
Construction in Process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	13,196	9,415
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	146,469	129,639
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	13,215	12,152
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	2,767	1,469
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 17,797	$ 12,954

Property Plant and Equipment 59

Property Plant and Equipment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Property, Plant and Equipment [Abstract]
Depreciation and amortization expense	$ 7.2	$ 5.2	$ 13.1	$ 9.5

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($)	6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 10, 2017	Mar. 09, 2017	Sep. 30, 2016	Aug. 31, 2016	Feb. 28, 2015	May 08, 2014
Debt Instrument [Line Items]
Write off of Deferred Debt Issuance Cost	$ 871,000	$ 0
Unamortized deferred financing costs	8,200,000
Term Loans [Member]
Debt Instrument [Line Items]
Amount drawn	$ 585,126,000
Effective interest rate	3.86%
Unamortized deferred financing costs	$ 6,900,000
Principal balance	588,462,000
Estimated fair value of Term Loans	596,600,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Unamortized deferred financing costs	1,300,000
Credit Agreement [Member]
Debt Instrument [Line Items]
Debt issuance fee					$ 8,700,000
Credit Agreement [Member] | Term Loans [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity								$ 350,000,000
Original issue discount								0.75%
Credit Agreement [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 160,000,000				$ 130,000,000	$ 100,000,000
Amount drawn	0		0
Maximum undrawn letters of credit			$ 5,000,000
Maximum undrawn letters of credit as a percentage of revolving credit commitments			35.00%	25.00%
Increase in maximum borrowing capacity	30,000,000
Credit facility, remaining borrowing capacity	$ 160,000,000
Incremental Term Loan Amendment [Member]
Debt Instrument [Line Items]
Debt issuance fee					3,200,000
Incremental Term Loan Amendment [Member] | Term Loans [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 250,000,000
Original issue discount						0.95%
March 2017 Amendments [Member]
Debt Instrument [Line Items]
Debt issuance fee					$ 1,000,000
Federal Funds Effective Swap Rate [Member] | Term Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
One Month London Interbank Offered Rate (LIBOR) [Member] | Term Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Minimum [Member] | Term Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%
Minimum [Member] | Base Rate [Member] | Term Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	3.00%
Maximum [Member] | Base Rate [Member] | Term Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%

Debt - Schedule of Remained Out

Debt - Schedule of Remained Outstanding on Term Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Debt Instrument [Line Items]
Current portion	$ 6,051	$ 6,051
Long-term, less current portion	572,180	$ 573,882
Term Loans [Member]
Debt Instrument [Line Items]
Principal balance	588,462
Unamortized discount	(3,336)
Total term loans	585,126
Current portion	6,051
Long-term, less current portion	$ 579,075

Debt - Schedule of Minimum Prin

Debt - Schedule of Minimum Principal Payments under Term Loans (Details) - Term Loans [Member] $ in Thousands	Mar. 31, 2017USD ($)
Debt Instrument [Line Items]
2017 (rest of fiscal year)	$ 3,026
2,018	6,051
2,019	6,051
2,020	6,051
2,021	567,283
Total	$ 588,462

Capital Lease and Financing O63

Capital Lease and Financing Obligations Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016
Capital Leased Assets [Line Items]
Proceeds from corporate facility financing obligation	$ 4,250	$ 0
Discount rate	8.50%
FiBest and Bin Optics
Capital Leased Assets [Line Items]
Financing obligations associated with leases	$ 2,800
100 Chelmsford Street
Capital Leased Assets [Line Items]
Lease term	20 years
Proceeds from corporate facility financing obligation	$ 4,200
Noncash or Part Noncash Divestiture, Description	4,000
Financing obligations associated with leases	$ 8,200
144 Chelmsford Street Lease
Capital Leased Assets [Line Items]
Lease term	20 years
Corporate Facility Leases
Capital Leased Assets [Line Items]
Lease term	20 years
Financing obligations associated with leases	$ 12,200
121 Hale Street
Capital Leased Assets [Line Items]
Lease term	14 years
Financing obligations associated with leases	$ 4,000

Capital Lease and Financing O64

Capital Lease and Financing Obligations FutureMinimumLeasePayments (Details) $ in Thousands	Mar. 31, 2017USD ($)
Leases [Abstract]
2,017	$ 1,120
2,018	1,898
2,019	1,794
2,020	1,621
2,021	1,487
Thereafter	20,541
Total minimum capital lease obligation payments	$ 28,461

Intangible Assets - Summary of

Intangible Assets - Summary of Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Finite-Lived Intangible Assets [Line Items]
Total	$ 14,439	$ 12,946	$ 26,908	$ 24,536
Cost of Revenue [Member]
Finite-Lived Intangible Assets [Line Items]
Total	7,276	6,642	13,278	13,809
Selling, General and Administrative [Member]
Finite-Lived Intangible Assets [Line Items]
Total	$ 7,163	$ 6,304	$ 13,630	$ 10,727

Intangible Assets - Summary o66

Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016	Apr. 01, 2016
Finite-Lived Intangible Assets [Line Items]
Trade name	$ 3,400	$ 3,400
Total	790,654	384,471
Less accumulated amortization	(151,777)	(124,869)
Intangible assets — net	638,877	259,602
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	243,020	165,397
Less accumulated amortization	(89,800)		$ (76,700)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	536,234	207,674
Less accumulated amortization	(61,900)		$ (48,100)
In-Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	$ 8,000	$ 8,000

Intangible Assets - Summary o67

Intangible Assets - Summary of Activity in Intangible Assets and Goodwill (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2017USD ($)
Indefinite-lived Intangible Assets [Roll Forward]
Goodwill, Purchase Accounting Adjustments	$ 220
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	120,024
Acquired	191,066
Currency translation adjustment	(1,426)
Balance at end of period	309,884
Goodwill and Intangible Assets [Roll Forward]
Balance at beginning of period	384,471
Acquired	410,348
Goodwill and Intangible Assets, Purchase Accounting Adjustments	0
Currency translation adjustment	(4,165)
Balance at end of period	790,654
Trade Name [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments	0
Indefinite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	3,400
Acquired	0
Currency translation adjustment	0
Balance at end of period	3,400
Acquired Technology [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	165,397
Acquired	78,448
Fair value adjustment	0
Currency translation adjustment	(825)
Balance at end of period	243,020
Customer Relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	207,674
Acquired	331,900
Fair value adjustment	0
Currency translation adjustment	(3,340)
Balance at end of period	536,234
In-Process Research and Development [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	8,000
Acquired	0
Fair value adjustment	0
Currency translation adjustment	0
Balance at end of period	$ 8,000

Intangible Assets - Summary o68

Intangible Assets - Summary of Estimated Amortization of Intangible Assets (Details) $ in Thousands	Mar. 31, 2017USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2017 Remaining	$ 39,962
2,017	84,966
2,018	92,474
2,019	90,091
2,020	81,335
Thereafter	238,649
Total	$ 627,477

Intangible Assets - Additional

Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016	Sep. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 151,777		$ 151,777		$ 124,869
Impairment of assets			0	$ 12,955
Impairments charges, fixed assets, intangibles and contractual commitment	0	$ 11,005	0	11,005
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	89,800	76,700	89,800	76,700
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 61,900	$ 48,100	$ 61,900	$ 48,100

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Details) - $ / shares	Mar. 31, 2017	Sep. 30, 2016	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]
Unvested shares of restricted common stock excluded from outstanding shares	2,170,663,000	1,707,695,000
Common stock warrants per share (in usd per share)			$ 14.05
Common Stock [Member]
Class of Warrant or Right [Line Items]
Common stock warrants (in shares)			1,281,358
Restricted Stock [Member]
Class of Warrant or Right [Line Items]
Unvested shares of restricted common stock excluded from outstanding shares	200	3,300

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Activity of Warrant Liability (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Movement in Warranty Liability [Roll Forward]
Balance at beginning of period			$ 38,253
Change in estimated fair value	$ 2,573	$ 4,201	7,395	$ 19,079
Balance at end of period	$ 45,648		$ 45,648

Earnings (Loss) Per Share (Deta

Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Numerator:
Loss from continuing operations	$ (134,267)	$ (12,045)	$ (136,438)	$ (28,815)
Income from discontinued operations	4,136	1,396	5,342	2,595
Net loss	(130,131)	(10,649)	(131,096)	(26,220)
Net loss attributable to common stockholders	$ (130,131)	$ (10,649)	$ (131,096)	$ (26,220)
Denominator:
Weighted average common shares outstanding-basic	60,813,000	53,228,000	57,276,000	53,122,000
Weighted average common shares outstanding-diluted	60,813,000	53,228,000	57,276,000	53,122,000
(Loss) earnings per share-basic:
Continuing operations (in usd per share)	$ (2.21)	$ (0.23)	$ (2.38)	$ (0.54)
Discontinued operations (in usd per share)	0.07	0.03	0.09	0.05
Income (loss) per share - basic (in usd per share)	(2.14)	(0.20)	(2.29)	(0.49)
(Loss) earnings per share-diluted:
Continuing operations (in usd per share)	(2.21)	(0.23)	(2.38)	(0.54)
Discontinued operations (in usd per share)	0.07	0.03	0.09	0.05
Income (loss) per share - diluted (in usd per share)	$ (2.14)	$ (0.20)	$ (2.29)	$ (0.49)
Number of antidilutive shares of common stock excluded from the calculation			1,953	2,081

Restructurings - Summary of Cos

Restructurings - Summary of Costs Incurred and Remaining Balances Included in Accrued Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Restructuring Reserve [Roll Forward]
Balance as of beginning of period			$ 3,104
Acquired liability			142
Current period expense	$ 469	$ 851	1,757	$ 1,008
Payments			(3,858)
Balance as of end of period	$ 1,145		$ 1,145

Restructurings - Additional Inf

Restructurings - Additional Information (Details) $ in Millions	Mar. 31, 2017USD ($)
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Additional restructuring costs expects during the remainder of 2016	$ 0.6
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Additional restructuring costs expects during the remainder of 2016	$ 1.6

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended
	Jan. 27, 2017	Nov. 25, 2016	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016	Dec. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost expected to be recognized			$ 76.4		$ 76.4
Compensation cost expected to be recognized, weighted-average period					3 years
Stock options outstanding (in shares)			1,300,000		1,300,000
Weighted-average exercise price per share (in usd per share)			$ 28.56		$ 28.56
Weighted-average remaining contractual term					5 years 7 months 21 days
Aggregate intrinsic value stock options outstanding			$ 26.9		$ 26.9
Stock value per share (in usd per share)					$ 36.79
Total intrinsic value of options exercised			$ 0.3	$ 0.8	$ 1.8	$ 2.7
Restricted Stock, Restricted Stock Units and Performance-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of restricted stock units vesting					$ 10	$ 15.7
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of options granted					7 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of options granted					10 years
Options Granted in November 2016 [Member] | Performance Based Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate					32.20%
Options Granted in November 2016 [Member] | Non-Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost expected to be recognized, weighted-average period					3 years
Target price for common stock for recognition of unamortized compensation cost (in dollars per share)					$ 66.96
Shares granted		310,000
Share Based Compensation Arrangement By Share Based Payment Award Stock Option Grant Date Fair Value		$ 4.1
Term of vesting of options		7 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate					1.84%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price							$ 40.25
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term					7 years
Options Granted in January 2017 [Member] | Performance Based Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate					34.50%
Options Granted in January 2017 [Member] | Non-Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost expected to be recognized, weighted-average period					3 years
Target price for common stock for recognition of unamortized compensation cost (in dollars per share)					$ 80.70
Shares granted	10,000
Share Based Compensation Arrangement By Share Based Payment Award Stock Option Grant Date Fair Value	$ 0.2
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate					2.25%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price			$ 46.28		$ 46.28
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term					7 years
2012 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants			16,400,000		16,400,000
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants			3,100,000		3,100,000

Share-Based Compensation - Effe

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
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total share-based compensation expense	$ 9,550	$ 5,844	$ 17,731	$ 13,226
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total share-based compensation expense	679	493	1,399	950
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total share-based compensation expense	2,727	1,671	4,671	3,508
Selling, General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total share-based compensation expense	$ 6,144	$ 3,680	$ 11,661	$ 8,768

Share-Based Compensation - Summ

Share-Based Compensation - Summary of Restricted Stock, Restricted Stock Unit and Performance-based Restricted Stock Unit Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Mar. 31, 2017	Sep. 30, 2016
Number of RSUs
Balance at beginning of period (in shares)	1,707,695
Granted (in shares)	1,034,362
Vested and released (in shares)	(540,095)
Forfeited, canceled or expired (in shares)	(31,299)
Balance at end of period (in shares)	2,170,663
Weighted- Average Grate Date Fair Value
Balance at beginning of period (in usd per share)	$ 32.76
Granted (in usd per share)	36.79
Vested and released (in usd per share)	26.91
Forfeited, canceled or expired (in usd per share)	33.53
Balance at end of period (in usd per share)	$ 36.13
Aggregate Intrinsic Value (in thousands)	$ 104,835	$ 72,165

Income Taxes (Details)

Income Taxes (Details) - USD ($)	3 Months Ended			6 Months Ended
	Mar. 31, 2017	Sep. 30, 2016	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016	Dec. 30, 2016
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate			35.00%	35.00%	35.00%
Unrecognized tax benefit	$ 1,700,000	$ 1,700,000		$ 1,700,000
Income Tax Examination, Penalties and Interest Accrued	0	0		0
Business Acquisition [Line Items]
Income Tax Examination, Penalties and Interest Expense	0	$ 0
Fi Best Limited [Member]
Business Acquisition [Line Items]
Deferred income tax liability	11,600,000			11,600,000		$ 11,552,000
Net deferred income tax liability	14,100,000			14,100,000
Fi Best Limited [Member] | NOL and Tax Credit Carryforwards [Member]
Business Acquisition [Line Items]
Deferred income tax asset	$ 2,500,000			$ 2,500,000

Income Taxes Income Taxes - Add

Income Taxes Income Taxes - Additional Information (Details) $ in Millions	Mar. 31, 2017USD ($)
Valuation Allowance [Line Items]
Valuation Allowances and Reserves, Balance	$ 88

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016
Related Party Transaction [Line Items]
Notice period to terminate agreement	30 days
Public Company [Member]
Related Party Transaction [Line Items]
Other income-related party (less than)	$ 0	$ 0
GaAs Labs [Member] | Stockholder [Member]
Related Party Transaction [Line Items]
Other income-related party (less than)	0	$ 0
Cadence [Member] | Public Company [Member]
Related Party Transaction [Line Items]
Other expense - related party	$ 1.5

Supplemental Cash Flow Inform81

Supplemental Cash Flow Information - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016
Supplemental Cash Flow Elements [Abstract]
Unpaid amounts related to purchase of assets	$ 1.1	$ 0.7

Supplemental Cash Flow Inform82

Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information Regarding Non-cash Investing and Financing Activities (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016
Supplemental Cash Flow Elements [Abstract]
Consideration paid, equity instruments issued	$ 465,082	$ 0
Cash paid for interest	16,668	8,229
Cash (refunded) paid for income taxes	$ (720)	$ 722

Geographic and Significant Cu83

Geographic and Significant Customer Information - Additional Information (Details)	3 Months Ended		6 Months Ended
	Mar. 31, 2017customer	Apr. 01, 2016customer	Mar. 31, 2017segmentcustomer	Apr. 01, 2016customer
Segment Reporting [Abstract]
Number of reportable operating segment | segment			1
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of major customers | customer	10	10	10	10
Revenue [Member] | Customer Concentration Risk [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	56.00%	66.00%	57.00%	64.00%

Geographic and Significant Cu84

Geographic and Significant Customer Information - Summary of Different Geographic Regions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016	Sep. 30, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	$ 186,084	$ 133,579	$ 337,836	$ 249,353
Long-Lived Assets by Geographic Region	118,518		118,518		$ 99,167
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	66,223	36,502	110,184	70,984
Long-Lived Assets by Geographic Region	97,873		97,873		79,832
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	39,859	34,565	87,337	65,284
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	65,288	52,444	115,040	94,180
Long-Lived Assets by Geographic Region	16,764		16,764		16,614
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	14,714	$ 10,068	25,275	$ 18,905
Long-Lived Assets by Geographic Region	$ 3,881		$ 3,881		$ 2,721

Geographic and Significant Cu85

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		12 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016	Sep. 30, 2016
Revenue [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage	56.00%	66.00%	57.00%	64.00%
Revenue [Member] | Customer A [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage	11.00%	17.00%	16.00%	16.00%
Revenue [Member] | Customer B [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage	10.00%	11.00%	11.00%	12.00%
Revenue [Member] | Customer D [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage	7.00%	12.00%	7.00%	12.00%
Revenue [Member] | Customer E [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage	3.00%	10.00%	4.00%	10.00%
Accounts Receivable [Member] | Customer A [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage			10.00%		13.00%
Accounts Receivable [Member] | Customer B [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage			13.00%		14.00%
Accounts Receivable [Member] | Customer C [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage			12.00%		1.00%
Accounts Receivable [Member] | Customer D [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage			8.00%		16.00%