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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Mar. 29, 2013	Apr. 22, 2013
Document Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 29, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Entity Registrant Name	M/A-COM Technology Solutions Holdings, Inc.
Entity Central Index Key	0001493594
Current Fiscal Year End Date	--09-30
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		46,044,585

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 29, 2013	Sep. 28, 2012
Current assets:
Cash and cash equivalents	$ 103,329	$ 84,528
Accounts receivable, net	49,646	54,184
Inventories	57,202	57,459
Income taxes receivable	3,869	4,939
Prepaid expenses and other current assets	4,957	3,660
Deferred income taxes	8,264	8,264
Total current assets	227,267	213,034
Property and equipment, net	29,539	30,209
Goodwill	3,990	3,990
Intangible assets, net	17,198	18,776
Other assets	1,738	2,064
TOTAL ASSETS	279,732	268,073
Current liabilities:
Accounts payable	24,803	26,958
Accrued liabilities	12,424	13,867
Income taxes payable	651	330
Deferred revenue	7,574	7,992
Current portion of contingent consideration		6,580
Total current liabilities	45,452	55,727
Common stock warrant liability	10,656	7,561
Other long-term liabilities	801	1,236
Deferred income taxes	4,091	4,091
Total liabilities	61,000	68,615
Commitments and contingencies (Note 9)
Stockholders' equity:
Preferred stock
Common stock	46	45
Additional paid-in capital	353,259	347,971
Treasury stock	(762)	(685)
Accumulated deficit	(133,542)	(147,736)
Accumulated other comprehensive loss	(269)	(137)
Total stockholders' equity	218,732	199,458
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 279,732	$ 268,073

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Income Statement [Abstract]
Revenue	$ 77,824	$ 77,480	$ 152,838	$ 150,515
Cost of revenue	43,963	40,931	86,712	82,551
Gross profit	33,861	36,549	66,126	67,964
Operating expenses:
Research and development	10,150	8,773	19,973	18,664
Selling, general and administrative	12,705	11,040	23,572	22,318
Accretion of contingent consideration	(405)	(1,247)	(577)	(1,078)
Restructuring charges				1,586
Total operating expenses	22,450	18,566	42,968	41,490
Income from operations	11,411	17,983	23,158	26,474
Other income (expense)
Accretion of common stock warrant liability	(1,069)	(7,447)	(3,095)	(5,989)
Accretion of Class B conversion liability		(57,739)		(44,119)
Interest expense	(200)	(203)	(426)	(384)
Other income - related party	86		170
Total other income (expense)	(1,183)	(65,389)	(3,351)	(50,492)
Income (loss) before income taxes	10,228	(47,406)	19,807	(24,018)
Income tax provision	2,142	6,155	5,613	7,501
Net income (loss)	8,086	(53,561)	14,194	(31,519)
Accretion of redeemable preferred stock and participating stock dividends		(1,201)		(2,616)
Net income (loss) attributable to common stockholders	$ 8,086	$ (54,762)	$ 14,194	$ (34,135)
Net income (loss) per share:
Basic	$ 0.18	$ (8.02)	$ 0.31	$ (7.93)
Diluted	$ 0.17	$ (8.02)	$ 0.30	$ (7.93)
Shares used to compute net income (loss) per common share:
Basic	45,789	6,829	45,649	4,306
Diluted	47,168	6,829	46,986	4,306

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Statement Of Partners Capital [Abstract]
Net income (loss)	$ 8,086	$ (53,561)	$ 14,194	$ (31,519)
Foreign currency translation gain (loss)	(125)	49	(132)	16
Total comprehensive income (loss)	$ 7,961	$ (53,512)	$ 14,062	$ (31,503)

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6518256

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Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6519514

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 20
-Article 9

+ Details

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - 6 months ended Mar. 29, 2013 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]
Balance at Sep. 28, 2012	$ 199,458	$ 45	$ (685)	$ (137)	$ 347,971	$ (147,736)
Balance, shares at Sep. 28, 2012		45,452	43
Issuance of common stock upon exercise of common stock options and employee stock purchases	1,031	$ 1			1,030
Issuance of common stock upon exercise of common stock options and employee stock purchases, shares		381
Vesting of restricted common stock and units
Vesting of restricted common stock and units, shares		167
Repurchase of common stock	(77)		$ (77)
Repurchase of common stock, Shares			6
Share-based and other incentive compensation	2,946				2,946
Excess tax benefits	1,312				1,312
Foreign currency translation	(132)			(132)
Net income	14,194					14,194
Balance at Mar. 29, 2013	$ 218,732	$ 46	$ (762)	$ (269)	$ 353,259	$ (133,542)
Balance, shares at Mar. 29, 2013		46,000	49

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 14,194	$ (31,519)
Adjustments to reconcile net income to net cash from operating activities:
Accretion of common stock warrant liability	3,095	5,989
Accretion of Class B conversion liability		44,119
Accretion of asset retirement obligations	32	38
Depreciation and amortization	6,943	5,623
Accretion of contingent consideration	(577)	(1,078)
Amortization of acquired unfavorable lease	(189)	(108)
Deferred income taxes		(1,828)
Loss on disposal of property and equipment	8	28
Share-based and other non-cash incentive compensation	2,946	996
Change in operating assets and liabilities:
Payment of contingent consideration	(5,328)
Accounts receivable	4,538	(2,277)
Inventories	257	2,692
Prepaid expenses and other assets	(1,018)	(457)
Accounts payable	(2,648)	2,110
Accrued and other liabilities	(1,189)	(292)
Income taxes	1,391	(716)
Deferred revenue	(418)	(5,162)
Net cash from operating activities	22,037	18,158
CASH FLOWS FROM INVESTING ACTIVITIES-
Purchases of property and equipment	(4,697)	(9,665)
CASH FLOWS FROM FINANCING ACTIVITIES:
Financing and offering costs	(126)	(2,146)
Proceeds from stock option exercises and employee stock purchases	1,031	104
Excess tax benefits	1,312
Repurchase of common stock	(77)	(330)
Payments of contingent consideration	(675)	(15,000)
Payment of dividends		(204)
Payments to former Mimix Holdings, Inc. stockholders	(4)	(17)
Proceeds from initial public offering, net of underwriters' discount		98,175
Payment of Class B preference		(60,000)
Net cash from financing activities	1,461	20,582
NET CHANGE IN CASH AND CASH EQUIVALENTS	18,801	29,075
CASH AND CASH EQUIVALENTS - Beginning of period	84,528	45,668
CASH AND CASH EQUIVALENTS - End of period	103,329	74,743
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest	235	100
Cash paid for income taxes	$ 3,381	$ 9,731

Description of Business, Basis of Presentation and Accounting	6 Months Ended
	Mar. 29, 2013
Accounting Policies [Abstract]
Description of Business, Basis of Presentation and Accounting	1. DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND ACCOUNTING Description of Business—M/A-COM Technology Solutions Holdings, Inc. (M/A-COM or the Company) was incorporated in Delaware on March 25, 2009. M/A-COM is a provider of high-performance analog semiconductor solutions for use in wireless and wireline applications across the radio frequency (RF), microwave and millimeterwave spectrum. Headquartered in Lowell, Massachusetts, M/A-COM has offices in North America, Europe, Asia and Australia. The Company has one reportable operating segment which designs, develops, manufactures and markets semiconductors and modules. Basis of Presentation—The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended September 28, 2012 filed with the SEC on November 28, 2012. The Company completed its initial public offering (IPO) in March 2012. The Company’s fiscal year ends on the Friday closest to the last day of September. For fiscal years in which there are 53 weeks, the fourth quarter reporting period includes 14 weeks. Fiscal years 2012 and 2013 are 52 weeks in length. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year 2013. The condensed consolidated financial statements include the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated. Use of Estimates—The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities during the reporting periods, the reported amounts of revenue and expenses during the reporting periods, and the disclosure of contingent assets and liabilities at the date of the financial statements. On an ongoing basis, the Company bases 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. The accounting policies which our management believes involve the most significant application of judgment, or involve complex estimation include revenue recognition, inventory, warranty obligations, share-based compensation, income taxes and fair value measurements related to contingent consideration liabilities, common stock warrant liabilities and, through the completion of the IPO in March 2012, Class B conversion liabilities. Actual results could differ from those estimates, and material effects on our operating results and financial position may result. Recent Accounting Standards—Under the Jumpstart Our Business Startups Act (JOBS Act), the Company meets the definition of an emerging growth company. The Company has elected to avail itself of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act.

- Definition

The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

+ References + Details

Financial Instruments

6 Months Ended

Mar. 29, 2013

Fair Value Disclosures [Abstract]

Financial Instruments

2. FINANCIAL INSTRUMENTS

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


	March 29, 2013
	Fair Value		Active Markets for Identical Assets (Level 1)		Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
Common stock warrant liability	$	10,656	$	—	$	—	$	10,656


	September 28, 2012
	Fair Value		Active Markets for Identical Assets (Level 1)		Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
Contingent consideration	$	6,580	$	—	$	—	$	6,580

Common stock warrant liability	$	7,561	$	—	$	—	$	7,561

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


	Three Months Ended March 29, 2013
	December 28, 2012		Net Realized/ Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements		Transfers in and/or (out) of Level 3		March 29, 2013
Contingent consideration	$	405	$	(405	)	$	—	$	—	$	—	$	—

Common stock warrant liability	$	9,587	$	1,069		$	—	$	—	$	—	$	10,656


	Three Months Ended March 30, 2012
	December 30, 2011		Net Realized/ Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements			Transfers in and/or (out) of Level 3		March 30, 2012
Contingent consideration	$	10,671	$	(1,247	)	$	—	$	—		$	—	$	9,424

Common stock warrant liability	$	9,278	$	7,447		$	—	$	—		$	—	$	16,725

Class B conversion liability	$	67,758	$	57,739		$	—	$	(125,497	)	$	—	$	—


	Six Months Ended March 29, 2013
	September 28, 2012		Net Realized/ Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements			Transfers in and/or (out) of Level 3		March 29, 2013
Contingent consideration	$	6,580	$	(577	)	$	—	$	(6,003	)	$	—	$	—

Common stock warrant liability	$	7,561	$	3,095		$	—	$	—		$	—	$	10,656


	Six Months Ended March 30, 2012
	September 30, 2011		Net Realized/ Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements			Transfers in and/or (out) of Level 3		March 30, 2012
Contingent consideration	$	25,502	$	(1,078	)	$	—	$	(15,000	)	$	—	$	9,424

Common stock warrant liability	$	10,736	$	5,989		$	—	$	—		$	—	$	16,725

Class B conversion liability	$	81,378	$	44,119		$	—	$	(125,497	)	$	—	$	—

The fair values of the contingent consideration liabilities were estimated based upon a risk-adjusted present value of the probability-weighted expected payments by the Company. Specifically, the Company 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. We paid Cobham Defense Electronic Corporation (Cobham) a final payment of $6.0 million for the final earn-out period ending September 30, 2012 in November 2012 and no further amounts are owed under the arrangement.

The Company has an earn-out arrangement with the former stockholders and option holders of Optomai, Inc. (Optomai), which was acquired in April 2011. The Company has not made any earn-out payments pursuant to the arrangement to date. In May 2013, the arrangement was amended such that the final earn-out period was extended through September 2013 and the maximum earn-out payment that may be paid was limited to $3.8 million, subject to potential reductions. Any earn-out expected to be paid under the amended terms will be expensed over the period commencing on the amendment date through September 2013.

Prior to the Company’s IPO in March 2012, the fair value of the common stock warrants was estimated based upon a present value of the probability-weighted expected investment returns to the holders. The Company weighted various scenarios of possible investment returns to the holders over the terms of the contracts, such as upon a sale of the Company and upon an initial public offering of its common stock, using a range of potential outcomes. Using the scenarios developed, management considered the likely timing and method of exercise of the warrants and investment returns to the holders. Where a settlement was considered likely in the near term, the probable settlement amounts were weighted. Where the time to exercise was expected to be longer, a Black-Scholes option pricing model was used to estimate the fair value of the warrants, giving consideration to remaining contractual life, expected volatility and risk free rates. The probability-weighted expected settlement of the warrant was discounted to the present using a risk adjusted discount rate. After March 2012, the quoted market price of the common stock underlying the warrants has been used. As of March 29, 2013, the fair value of the common stock warrants has been estimated using a Black-Scholes option pricing model giving consideration to the quoted market price of the common stock on that date, an expected life of 7.7 years, expected volatility of 42.7% and risk free rate of 1.6%.

The fair values of the Class B conversion liabilities were estimated based upon a consideration of the estimated fair value of the underlying common stock into which the Company’s Class B convertible preferred stock (Class B) was convertible, and the expected preferential payments pursuant to the terms of the securities. The Company estimated the fair value of the common stock by using the same probability-weighted scenarios used in estimating the fair value of the warrants. For each potential scenario, the value to the Class B was estimated relative to the existing preferences. The Class B conversion liabilities were settled upon the closing of the Company’s IPO in March 2012.

These estimates include significant judgments about potential future liquidity events and actual results could materially differ and could have a material impact upon the values of the recorded liabilities. Any changes in the estimated fair values of the liabilities in the future will be reflected in the Company’s earnings and such changes could be material.

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
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-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Inventories

6 Months Ended

Mar. 29, 2013

Inventory Disclosure [Abstract]

Inventories

3. INVENTORIES

Inventories consist of the following (in thousands):


	March 29, 2013		September 28, 2012
Raw materials	$	32,081	$	29,922
Work-in-process		4,289		5,472
Finished goods		20,832		22,065

Total	$	57,202	$	57,459

In the three months ended March 29, 2013, the Company refined its estimation process used to capitalize material and manufacturing variances to inventory to better reflect its current business. This change resulted in a $1.1 million increase to inventory as of March 29, 2013 and a corresponding reduction to costs of sales for the three and six months then ended.

Property and Equipment

6 Months Ended

Mar. 29, 2013

Property Plant And Equipment [Abstract]

Property and Equipment

4. PROPERTY AND EQUIPMENT

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


	March 29, 2013			September 28, 2012
Machinery and equipment	$	44,176		$	38,795
Leasehold improvements		4,987			4,876
Furniture and fixtures		717			699
Construction in process		2,984			4,188
Computer equipment and software		6,674			6,594

Total property and equipment		59,538			55,152
Less accumulated depreciation and amortization		(29,999	)		(24,943	)

Property and equipment — net	$	29,539		$	30,209

Depreciation and amortization expense related to property and equipment for the three months ended March 29, 2013 and March 30, 2012 was $2.6 million and $2.2 million, respectively. Depreciation and amortization expense related to property and equipment for the six months ended March 29, 2013 and March 30, 2012 was $5.2 million and $4.2 million, respectively

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

+ References + Details

Debt	6 Months Ended
Debt	Mar. 29, 2013
Debt Disclosure [Abstract]
Debt	5. DEBT On September 30, 2011, the Company entered a loan agreement with a syndicate of lenders, which was subsequently augmented in February and November 2012. The agreement provides for a revolving credit facility of up to $150.0 million that matures in September 2016. Borrowings under the revolving credit facility bear a variable interest rate equal to (i) the greater of the lender’s prime rate, the federal funds effective rate plus 0.5%, or an adjusted LIBOR plus 1.0%, in each case plus either an additional 1.25%, 1.50% or 1.75%, subject to certain conditions, or (ii) an adjusted LIBOR rate plus either 2.25%, 2.50% or 2.75%, subject to certain conditions. The Company also pays a fee on the unused portion of the credit facility. The revolving credit facility is secured by a first priority lien on substantially all of the Company’s assets and requires compliance with certain financial and non-financial covenants, including restrictions on payments of dividends, incurrence of additional debt, levels of capital expenditures, amounts and types of investments, guarantees of debts and obligations, creation of liens, transactions with affiliates, sales or leases of assets, transfers of assets, entering new lines of business and entering into certain merger, consolidation or other reorganization transactions. As of March 29, 2013 and September 28, 2012, there were no outstanding borrowings under the revolving credit facility.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References + Details

Intangible Assets

6 Months Ended

Mar. 29, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

6. INTANGIBLE ASSETS

Intangible assets include an indefinite-lived trade name with a carrying value of $3.4 million and the following amortizable intangible assets (in thousands):


	Total			Acquired Technology			Customer Relationships
As of March 29, 2013
Intangible assets	$	26,154		$	13,754		$	12,400
Less accumulated amortization		(12,356	)		(7,306	)		(5,050	)

Intangible assets - net	$	13,798		$	6,448		$	7,350


As of September 28, 2012:
Intangible assets	$	26,154		$	13,754		$	12,400
Less accumulated amortization		(10,778	)		(6,358	)		(4,420	)

Intangible assets - net	$	15,376		$	7,396		$	7,980

Amortization expense related to the Company’s amortized intangible assets is as follows (in thousands):


	Three Months Ended				Six Months Ended
	March 29, 2013		March 30, 2012		March 29, 2013		March 30, 2012
Cost of revenue	$	474	$	382	$	948	$	764
Selling, general and administrative		315		257		630		515

Total	$	789	$	639	$	1,578	$	1,279

Estimated amortization of the intangible assets in future fiscal years as of March 29, 2013 (in thousands):


2013 (rest of fiscal year)	$	1,577
2014		3,155
2015		3,155
2016		2,391
2017		1,627
Thereafter		1,893

Total	$	13,798

Stockholder's Equity	6 Months Ended
Stockholder's Equity	Mar. 29, 2013
Equity [Abstract]
Stockholder's Equity	7. STOCKHOLDER’S EQUITY The Company has 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 29, 2013. Outstanding shares of our common stock as of March 29, 2013 and September 28, 2012 presented in the accompanying condensed consolidated statements of stockholders’ equity exclude 93,000 and 131,000 unvested shares of restricted common stock, respectively, issued as compensation to employees that are subject to forfeiture.

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

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

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=6228006&loc=d3e74512-122707

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

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

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770

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

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

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

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

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

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

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

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Section B
-Paragraph 7, 11A
-Chapter 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph d
-Article 4

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 20: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 22: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 3, 4, 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 23: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

+ Details

Income (Loss) Per Share

6 Months Ended

Mar. 29, 2013

Earnings Per Share [Abstract]

Income (Loss) Per Share

8. INCOME (LOSS) PER SHARE

Basic net income (loss) per common share was presented in conformity with the two-class method required for participating securities. Upon completion of the IPO in March 2012, all outstanding shares of preferred stock were converted to common stock. As a result, common stock is the only outstanding capital stock since the IPO.

Basic net income (loss) per share is computed using the weighted-average number of common shares outstanding during the period. Diluted net income per share is computed using the weighted-average number of common shares and, if dilutive, potential common shares outstanding during the period. The Company’s potential dilutive common shares consist of common shares issuable upon the exercise of warrants, stock options and vesting of restricted stock units. The dilutive effect of outstanding stock options is reflected in diluted earnings per share by application of the treasury stock method.

The following table sets forth the computation for basic and diluted net income per share of common stock (in thousands, except per share data):


	Three Months Ended					Six Months Ended
	March 29, 2013		March 30, 2012			March 29, 2013		March 30, 2012
Numerator:
Net income (loss)	$	8,086	$	(53,561	)	$	14,194	$	(31,519	)
Accretion to redemption value of redeemable convertible preferred stock		—		(1,201	)		—		(2,616	)

Net income (loss) attributable to common stockholders	$	8,086	$	(54,762	)	$	14,194	$	(34,135	)


Denominator:
Weighted average common shares outstanding-basic		45,789		6,829			45,649		4,306

Dilutive effect of options and warrants		1,379		—			1,337		—

Weighted average common shares outstanding-diluted		47,168		6,829			46,986		4,306

Common stock income (loss) per share:
Basic	$	0.18	$	(8.02	)	$	0.31	$	(7.93	)

Diluted	$	0.17	$	(8.02	)	$	0.30	$	(7.93	)

The table above excludes the effects of shares of common stock issuable upon exercise of stock options and warrants as well as the common stock issuable upon the conversion of preferred stock for the three and six months ended March 30, 2012 as the inclusion of which would be antidilutive.

Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Mar. 29, 2013
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	9. COMMITMENTS AND CONTINGENCIES Unused Letter of Credit—As of March 29, 2013 and September 28, 2012, the Company had outstanding unused letters of credit from a bank aggregating $246,000. Purchase Commitments—As of March 29, 2013 and September 28, 2012, the Company had outstanding non-cancelable purchase commitments aggregating $4.7 million and $6.3 million, respectively, pursuant to inventory supply arrangements. Litigation—The Company is periodically subject to legal proceedings, claims and contingencies arising in the ordinary course of business. GigOptix Matter. In April 2011, GigOptix, Inc. (GigOptix) filed a complaint and subsequently a first amended complaint (Complaint) in the Santa Clara County Superior Court against the Company, its subsidiary Optomai, and five of the employees (Ex-Employees) who had previously worked for GigOptix. GigOptix alleged that three of the Ex-Employees began conceptualizing a new business venture in 2009 (which would later become Optomai) before resigning from their employment with GigOptix, and that they used confidential information of GigOptix in their new business. The Complaint sought unspecified damages, attorneys’ fees and costs, and injunctive relief for alleged breach of employment-related agreements, trade secret misappropriation and other related alleged torts by the employee defendants, Optomai and, following its April 2011 acquisition of Optomai, the Company. In July 2011, GigOptix sought a temporary restraining order and thereafter an injunction on the same grounds, both of which were denied by the court. In August 2011, GigOptix amended its Complaint for the second time to delete its causes of action for negligent and intentional interference with economic advantage and unfair competition, leaving the following causes of action to be adjudicated: (i) breach of duty of loyalty against the Ex-Employees only, (ii) breach of contract against the Ex-Employees only, (iii) misappropriation of trade secrets against all defendants, and (iv) unfair business practices against all defendants. Each side has served and responded to written discovery requests, produced documents and conducted witness depositions. On July 30, 2012, GigOptix filed and served a renewed motion for preliminary injunction, which was argued before the court on September 13, 2012. After considering evidence presented by the parties, including witness and expert testimony and forensic evidence, the court denied GigOptix’s renewed motion for preliminary injunction on September 18, 2012. The parties participated in a non-binding mediation of their dispute on December 20, 2012, but did not resolve the lawsuit. In January 2013, the plaintiff’s claims were voluntarily dismissed as to two of the five individual Ex-Employee defendants and the court set a date for a trial beginning August 26, 2013. CSR Matter. In January 2013, CSR Technology Inc. (“CSR”) filed a complaint against the Company in the Massachusetts Superior Court for Suffolk County alleging breach of contract, breach of the implied covenant of good faith and fair dealing, misrepresentation, deceptive business practices and unfair competition, all relating to the Company’s purported failure to honor an alleged minimum purchase commitment contract between the Company with respect to certain semiconductor chips previously supplied by CSR for use in our automotive module product. The complaint claims alleged damages of $2.2 million and asks for attorney’s fees and other remedies. The Company filed an answer to the complaint on January 28, 2013. The parties are proceeding with discovery and document production. The Company intends to continue to defend the aforementioned lawsuits vigorously. The Company does not expect that the ultimate cost to resolve these matters will have a material effect on the consolidated financial statements. The Company does not believe a risk of material loss resulting from litigation is probable, nor is the Company able to estimate any reasonably possible range of loss.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
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-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Restructurings

6 Months Ended

Mar. 29, 2013

Restructuring And Related Activities [Abstract]

Restructurings

10. RESTRUCTURINGS

The Company recorded restructuring charges of $1.9 million in fiscal year 2012, representing the full cost of a reduction in staffing action and consisting of direct and incremental costs related to severance and outplacement fees for terminated employees. The action was designed to further lower operating costs. The unpaid restructuring costs of $14,000 as of March 29, 2013 are expected to be paid through the third quarter of fiscal year 2013. The following is a summary of the costs related to the restructuring actions (in thousands):


Balance-September 28, 2012	$	328
Payments		(314	)

Balance-March 29, 2013	$	14

In April 2013, the Company commenced the implementation of a restructuring plan to further reduce manufacturing and operating costs through a reduction of staffing. This restructuring plan will be implemented in the third quarter of fiscal 2013 and is expected to result in a charge of approximately $1.1 million to $1.3 million, representing the full cost of the actions and consisting of direct and incremental costs related to severance and outplacement fees for terminated employees. These costs are expected to be paid through the first quarter of fiscal year 2014.

- Definition

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

+ References + Details

Share-Based Compensation

6 Months Ended

Mar. 29, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share-Based Compensation

11. SHARE-BASED COMPENSATION

The following table presents the effects of share-based compensation expense related to share-based awards to employees and non-employees in the Company’s condensed consolidated statements of operations during the periods presented (in thousands):


	Three Months Ended				Six Months Ended
	March 29, 2013		March 30, 2012		March 29, 2013		March 30, 2012
Cost of revenue	$	292	$	38	$	609	$	68
Research and development		484		114		856		212
Selling, general and administrative		907		279		1,841		624

Total stock-based compensation expense	$	1,683	$	431	$	3,306	$	904

A summary of stock option activity for the six months ended March 29, 2013, is as follows (in thousands, except per share amounts):


	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding-September 28, 2012		1,861		$	1.23		7.1	$		21,352
Exercised		(310	)		1.12
Forfeited, canceled or expired		(396	)		0.64

Outstanding-March 29, 2013		1,155			1.45		6.6		16,883


Options vested and expected to vest as of March 29, 2013		1,120			1.45		6.6	$		16,377


Options vested and exercisable as of March 29, 2013		774			1.31		6.6		11,430

Aggregate intrinsic value represents the difference between the Company’s closing stock price on March 29, 2013 and the exercise price of outstanding, in-the-money options. The total intrinsic value of options exercised was $4.1 million for the six months ended March 29, 2013. No options were granted in the six months ended March 29, 2013. As of March 29, 2013, total unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested stock options was $316,000, which is expected to be recognized over the next 1.2 years.

A summary of restricted stock and units activity for the six months ended March 29, 2013, is as follows (in thousands):


	Number of Shares			Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Unvested-September 28, 2012		582			2.9	$	7,391
Granted		604
Vested		(167	)
Forfeited, canceled or expired		(16	)

Issued and unvested-March 29, 2013		1,003			3.1		16,115

Shares expected to vest-March 29, 2013		849			3.1		13,650

The total intrinsic value of awards vesting was $2.7 million for the six months ended March 29, 2013. As of March 29, 2013, total unrecognized compensation cost, adjusted for estimated forfeitures, related to restricted stock and units was $11.7 million, which is expected to be recognized over the next 3.1 years.

As of March 29, 2013, total unrecognized compensation cost related to the 2012 Employee Stock Purchase Plan (ESPP) was not material.

Certain of the share-based awards granted and outstanding as of March 29, 2013 are subject to accelerated vesting upon a sale of the Company or similar changes in control.

Effective September 29, 2012, pursuant to an “evergreen” provision, the number of shares of common stock available for issuance under the 2012 Omnibus Incentive Plan and the ESPP were increased by 1.9 million shares and 0.6 million shares, respectively.

There were no material modifications to stock-based awards during the periods presented.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Income Taxes	6 Months Ended
Income Taxes	Mar. 29, 2013
Income Tax Disclosure [Abstract]
Income Taxes	12. INCOME TAXES The Company is subject to income tax in the United States as well as other tax jurisdictions in which it conducts 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, the Company records 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 the Company’s effective income tax rates for the three and six months ended March 29, 2013 and March 30, 2012 was driven primarily by expenses related to the changes in fair values of the common stock warrant liability and, in the 2012 periods, the Class B conversion liability, neither of which are deductible for tax purposes, income taxed in foreign jurisdictions at generally lower tax rates partially offset by U.S. state income taxes, and, in the 2013 periods, a benefit relating to the retroactive reinstatement of the U.S. research and development tax credits, and, in the 2012 periods, a $1.7 million deferred income tax benefit resulting from a change in the deferred income tax liability related to acquired intangible assets. The U.S. research and development tax credit, which had previously expired on December 31, 2011, was reinstated as part of The American Taxpayer Relief Act of 2012 enacted on January 2, 2013.

- Definition

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

+ References

+ Details

Related Party Transactions	6 Months Ended
Related Party Transactions	Mar. 29, 2013
Related Party Transactions [Abstract]
Related Party Transactions	13. RELATED PARTY TRANSACTIONS GaAs Labs, LLC (GaAs Labs), a stockholder and a company controlled by one of our directors, was formerly engaged to provide management services pursuant to an agreement entered into in fiscal year 2008 and amended in December 2010. Commencing in fiscal year 2009, the Company paid GaAs Labs $60,000 per month. Selling, general and administrative expenses for the three months ended March 30, 2012 include $180,000 for such services. The agreement terminated by its terms concurrently with the closing of the IPO in March 2012. In February 2012, the Company entered into a design services agreement with Ubiquiti Networks, Inc. (Ubiquiti). Two of the Company’s directors are also directors of Ubiquiti. An affiliate of one of the directors is also an Ubiquiti stockholder. The agreement provides that the Company will provide engineering services to Ubiquiti toward the development of a device. The agreement also provides that Ubiquiti will pay the Company up to $500,000 for such services based on milestone achievement and sets a unit price for any future production orders of such devices. Pursuant to the terms of the agreement, the Company received $100,000 from Ubiquiti during the six months ended March 29, 2013. In April 2012, the Company entered into an agreement with GaAs Labs whereby GaAs Labs pays the Company for administrative and business development services provided 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 three and six months ended March 29, 2013, the Company billed GaAs Labs $86,000 and $170,000, respectively, for services provided pursuant to this agreement and has recorded these amounts as other income in the accompanying condensed consolidated statements of operations.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph b
-Article 3A

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph k
-Article 4

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 57
-Paragraph 1-4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Supplemental Cash Flow Information	6 Months Ended
Supplemental Cash Flow Information	Mar. 29, 2013
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	14. SUPPLEMENTAL CASH FLOW INFORMATION As of March 29, 2013 and March 30, 2012, the Company had $1.1 million and $1.7 million, respectively, in unpaid amounts related to purchases of property and equipment included in accounts payable and accrued liabilities. 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.

Geographic and Significant Customer Information

6 Months Ended

Mar. 29, 2013

Segment Reporting [Abstract]

Geographic and Significant Customer Information

15. GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION

Information about the Company’s 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 29, 2013		March 30, 2012		March 29, 2013		March 30, 2012
United States	$	46,454	$	38,645	$	90,894	$	76,330
International (1)		31,370		38,835		61,944		74,185

Total	$	77,824	$	77,480	$	152,838	$	150,515


	As of
Long-Lived Assets by Geographic Region	March 29, 2013		September 28, 2012
United States	$	22,811	$	23,027
International (2)		6,728		7,182

Total	$	29,539	$	30,209

(1)	No international countries represented greater than 10% of total revenue during the periods presented.

(2)	No international country or region represented greater than 10% of the total net long-lived assets as of the dates presented, other than the Asia-Pacific region, which accounted for 13% as of March 29, 2013.

The following is a summary of customer concentrations as a percentage of total sales and accounts receivable as of and for the periods presented:


	Three Months Ended						Six Months Ended
Revenue	March 29, 2013			March 30, 2012			March 29, 2013			March 30, 2012
Customer A		15	%		19	%		15	%		19	%
Customer B		25	%		13	%		26	%		13	%


	As of
Accounts Receivable	March 29, 2013			September 28, 2012
Customer A		11	%		16	%
Customer B		21	%		18	%

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 months ended March 29, 2013 and March 30, 2012, ten customers represented 61% and 59% of total revenue, respectively. For the six months ended March 29, 2013 and March 30, 2012, ten customers represented 61% and 54% of total revenue, respectively.

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 280
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Description of Business, Basis of Presentation and Accounting (Policies)	6 Months Ended
	Mar. 29, 2013
Accounting Policies [Abstract]
Description of Business	Description of Business—M/A-COM Technology Solutions Holdings, Inc. (M/A-COM or the Company) was incorporated in Delaware on March 25, 2009. M/A-COM is a provider of high-performance analog semiconductor solutions for use in wireless and wireline applications across the radio frequency (RF), microwave and millimeterwave spectrum. Headquartered in Lowell, Massachusetts, M/A-COM has offices in North America, Europe, Asia and Australia. The Company has one reportable operating segment which designs, develops, manufactures and markets semiconductors and modules.
Basis of Presentation	Basis of Presentation—The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended September 28, 2012 filed with the SEC on November 28, 2012. The Company completed its initial public offering (IPO) in March 2012. The Company’s fiscal year ends on the Friday closest to the last day of September. For fiscal years in which there are 53 weeks, the fourth quarter reporting period includes 14 weeks. Fiscal years 2012 and 2013 are 52 weeks in length. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year 2013. The condensed consolidated financial statements include the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated.
Use of Estimates	Use of Estimates—The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities during the reporting periods, the reported amounts of revenue and expenses during the reporting periods, and the disclosure of contingent assets and liabilities at the date of the financial statements. On an ongoing basis, the Company bases 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. The accounting policies which our management believes involve the most significant application of judgment, or involve complex estimation include revenue recognition, inventory, warranty obligations, share-based compensation, income taxes and fair value measurements related to contingent consideration liabilities, common stock warrant liabilities and, through the completion of the IPO in March 2012, Class B conversion liabilities. Actual results could differ from those estimates, and material effects on our operating results and financial position may result.
Recent Accounting Standards	Recent Accounting Standards—Under the Jumpstart Our Business Startups Act (JOBS Act), the Company meets the definition of an emerging growth company. The Company has elected to avail itself of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act.

Financial Instruments (Tables)

6 Months Ended

Mar. 29, 2013

Fair Value Disclosures [Abstract]

Financial Liabilities Measured at Fair Value on Recurring Basis

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


	March 29, 2013
	Fair Value		Active Markets for Identical Assets (Level 1)		Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
Common stock warrant liability	$	10,656	$	—	$	—	$	10,656


	September 28, 2012
	Fair Value		Active Markets for Identical Assets (Level 1)		Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
Contingent consideration	$	6,580	$	—	$	—	$	6,580

Common stock warrant liability	$	7,561	$	—	$	—	$	7,561

Changes in Financial Liabilities with Inputs Classified within Level 3 of Fair Value

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


	Three Months Ended March 29, 2013
	December 28, 2012		Net Realized/ Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements		Transfers in and/or (out) of Level 3		March 29, 2013
Contingent consideration	$	405	$	(405	)	$	—	$	—	$	—	$	—

Common stock warrant liability	$	9,587	$	1,069		$	—	$	—	$	—	$	10,656


	Three Months Ended March 30, 2012
	December 30, 2011		Net Realized/ Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements			Transfers in and/or (out) of Level 3		March 30, 2012
Contingent consideration	$	10,671	$	(1,247	)	$	—	$	—		$	—	$	9,424

Common stock warrant liability	$	9,278	$	7,447		$	—	$	—		$	—	$	16,725

Class B conversion liability	$	67,758	$	57,739		$	—	$	(125,497	)	$	—	$	—


	Six Months Ended March 29, 2013
	September 28, 2012		Net Realized/ Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements			Transfers in and/or (out) of Level 3		March 29, 2013
Contingent consideration	$	6,580	$	(577	)	$	—	$	(6,003	)	$	—	$	—

Common stock warrant liability	$	7,561	$	3,095		$	—	$	—		$	—	$	10,656


	Six Months Ended March 30, 2012
	September 30, 2011		Net Realized/ Unrealized Losses (Gains) Included in Earnings			Purchases and Issuances		Sales and Settlements			Transfers in and/or (out) of Level 3		March 30, 2012
Contingent consideration	$	25,502	$	(1,078	)	$	—	$	(15,000	)	$	—	$	9,424

Common stock warrant liability	$	10,736	$	5,989		$	—	$	—		$	—	$	16,725

Class B conversion liability	$	81,378	$	44,119		$	—	$	(125,497	)	$	—	$	—

- Definition

Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.

+ References + Details

- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

+ References + Details

Inventories (Tables)

6 Months Ended

Mar. 29, 2013

Inventory Disclosure [Abstract]

Components of Inventories

Inventories consist of the following (in thousands):


	March 29, 2013		September 28, 2012
Raw materials	$	32,081	$	29,922
Work-in-process		4,289		5,472
Finished goods		20,832		22,065

Total	$	57,202	$	57,459

Property and Equipment (Tables)

6 Months Ended

Mar. 29, 2013

Property Plant And Equipment [Abstract]

Components of Property and Equipment

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


	March 29, 2013			September 28, 2012
Machinery and equipment	$	44,176		$	38,795
Leasehold improvements		4,987			4,876
Furniture and fixtures		717			699
Construction in process		2,984			4,188
Computer equipment and software		6,674			6,594

Total property and equipment		59,538			55,152
Less accumulated depreciation and amortization		(29,999	)		(24,943	)

Property and equipment — net	$	29,539		$	30,209

Intangible Assets (Tables)

6 Months Ended

Mar. 29, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Amortized Intangible Assets

Intangible assets include an indefinite-lived trade name with a carrying value of $3.4 million and the following amortizable intangible assets (in thousands):


	Total			Acquired Technology			Customer Relationships
As of March 29, 2013
Intangible assets	$	26,154		$	13,754		$	12,400
Less accumulated amortization		(12,356	)		(7,306	)		(5,050	)

Intangible assets - net	$	13,798		$	6,448		$	7,350


As of September 28, 2012:
Intangible assets	$	26,154		$	13,754		$	12,400
Less accumulated amortization		(10,778	)		(6,358	)		(4,420	)

Intangible assets - net	$	15,376		$	7,396		$	7,980

Summary of Amortization Expense of Intangible Assets

Amortization expense related to the Company’s amortized intangible assets is as follows (in thousands):


	Three Months Ended				Six Months Ended
	March 29, 2013		March 30, 2012		March 29, 2013		March 30, 2012
Cost of revenue	$	474	$	382	$	948	$	764
Selling, general and administrative		315		257		630		515

Total	$	789	$	639	$	1,578	$	1,279

Summary of Estimated Amortization of Intangible Assets in Future Fiscal Years

Estimated amortization of the intangible assets in future fiscal years as of March 29, 2013 (in thousands):


2013 (rest of fiscal year)	$	1,577
2014		3,155
2015		3,155
2016		2,391
2017		1,627
Thereafter		1,893

Total	$	13,798

Income (Loss) Per Share (Tables)

6 Months Ended

Mar. 29, 2013

Earnings Per Share [Abstract]

Computation for Basic and Diluted Net Income Per Share of Common Stock

The following table sets forth the computation for basic and diluted net income per share of common stock (in thousands, except per share data):


	Three Months Ended					Six Months Ended
	March 29, 2013		March 30, 2012			March 29, 2013		March 30, 2012
Numerator:
Net income (loss)	$	8,086	$	(53,561	)	$	14,194	$	(31,519	)
Accretion to redemption value of redeemable convertible preferred stock		—		(1,201	)		—		(2,616	)

Net income (loss) attributable to common stockholders	$	8,086	$	(54,762	)	$	14,194	$	(34,135	)


Denominator:
Weighted average common shares outstanding-basic		45,789		6,829			45,649		4,306

Dilutive effect of options and warrants		1,379		—			1,337		—

Weighted average common shares outstanding-diluted		47,168		6,829			46,986		4,306

Common stock income (loss) per share:
Basic	$	0.18	$	(8.02	)	$	0.31	$	(7.93	)

Diluted	$	0.17	$	(8.02	)	$	0.30	$	(7.93	)

Restructurings (Tables)

6 Months Ended

Mar. 29, 2013

Restructuring And Related Activities [Abstract]

Summary of Costs Related to Restructuring Actions

The following is a summary of the costs related to the restructuring actions (in thousands):


Balance-September 28, 2012	$	328
Payments		(314	)

Balance-March 29, 2013	$	14

Share-Based Compensation (Tables)

6 Months Ended

Mar. 29, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Effects of Share-Based Compensation Expense Related to Share-Based Awards to Employees and Non-employees


	Three Months Ended				Six Months Ended
	March 29, 2013		March 30, 2012		March 29, 2013		March 30, 2012
Cost of revenue	$	292	$	38	$	609	$	68
Research and development		484		114		856		212
Selling, general and administrative		907		279		1,841		624

Total stock-based compensation expense	$	1,683	$	431	$	3,306	$	904

Summary of Stock Option Activity

A summary of stock option activity for the six months ended March 29, 2013, is as follows (in thousands, except per share amounts):


	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding-September 28, 2012		1,861		$	1.23		7.1	$		21,352
Exercised		(310	)		1.12
Forfeited, canceled or expired		(396	)		0.64

Outstanding-March 29, 2013		1,155			1.45		6.6		16,883


Options vested and expected to vest as of March 29, 2013		1,120			1.45		6.6	$		16,377


Options vested and exercisable as of March 29, 2013		774			1.31		6.6		11,430

Summary of Restricted Stock and Units Activity

A summary of restricted stock and units activity for the six months ended March 29, 2013, is as follows (in thousands):


	Number of Shares			Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Unvested-September 28, 2012		582			2.9	$	7,391
Granted		604
Vested		(167	)
Forfeited, canceled or expired		(16	)

Issued and unvested-March 29, 2013		1,003			3.1		16,115

Shares expected to vest-March 29, 2013		849			3.1		13,650

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References + Details

Geographic and Significant Customer Information (Tables)

6 Months Ended

Mar. 29, 2013

Segment Reporting [Abstract]

Summary of Different Geographic Regions

Information about the Company’s 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 29, 2013		March 30, 2012		March 29, 2013		March 30, 2012
United States	$	46,454	$	38,645	$	90,894	$	76,330
International (1)		31,370		38,835		61,944		74,185

Total	$	77,824	$	77,480	$	152,838	$	150,515


	As of
Long-Lived Assets by Geographic Region	March 29, 2013		September 28, 2012
United States	$	22,811	$	23,027
International (2)		6,728		7,182

Total	$	29,539	$	30,209

(1)	No international countries represented greater than 10% of total revenue during the periods presented.

(2)	No international country or region represented greater than 10% of the total net long-lived assets as of the dates presented, other than the Asia-Pacific region, which accounted for 13% as of March 29, 2013.

Summary of Customer Concentrations as Percentage of Total Sales and Accounts Receivable

The following is a summary of customer concentrations as a percentage of total sales and accounts receivable as of and for the periods presented:


	Three Months Ended						Six Months Ended
Revenue	March 29, 2013			March 30, 2012			March 29, 2013			March 30, 2012
Customer A		15	%		19	%		15	%		19	%
Customer B		25	%		13	%		26	%		13	%


	As of
Accounts Receivable	March 29, 2013			September 28, 2012
Customer A		11	%		16	%
Customer B		21	%		18	%

Description of Business, Basis of Presentation and Accounting - Additional Information (Detail)	6 Months Ended
	Mar. 29, 2013 Segment
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of reportable operating segment	1
Reporting period description	For fiscal years in which there are 53 weeks, the fourth quarter reporting period includes 14 weeks
Number of weeks in period	52 weeks

Financial Instruments - Financial Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 29, 2013	Sep. 28, 2012
Common stock warrant liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial liabilities measured at fair value on a recurring basis	$ 10,656	$ 7,561
Contingent consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial liabilities measured at fair value on a recurring basis		6,580
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]
Financial liabilities measured at fair value on a recurring basis
Active Markets for Identical Assets (Level 1) [Member] \| Contingent consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial liabilities measured at fair value on a recurring basis
Observable Inputs (Level 2) [Member] \| Common stock warrant liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial liabilities measured at fair value on a recurring basis
Observable Inputs (Level 2) [Member] \| Contingent consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial liabilities measured at fair value on a recurring basis
Unobservable Inputs (Level 3) [Member] \| Common stock warrant liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial liabilities measured at fair value on a recurring basis	$ 10,656	7,561
Unobservable Inputs (Level 3) [Member] \| Contingent consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial liabilities measured at fair value on a recurring basis		$ 6,580

Financial Instruments - Changes in Financial Liabilities with Inputs Classified within Level 3 of Fair Value (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Contingent consideration [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Changes in financial liabilities with inputs classified within Level 3 of the fair value, beginning balance	$ 405	$ 10,671	$ 6,580	$ 25,502
Net Realized/ Unrealized Losses (Gains) Included in Earnings	(405)	(1,247)	(577)	(1,078)
Purchases and Issuances
Sales and Settlements			(6,003)	(15,000)
Transfers in and/or (out) of Level 3
Changes in financial liabilities with inputs classified within Level 3 of the fair value, ending balance		9,424		9,424
Common stock warrant liability [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Changes in financial liabilities with inputs classified within Level 3 of the fair value, beginning balance	9,587	9,278	7,561	10,736
Net Realized/ Unrealized Losses (Gains) Included in Earnings	1,069	7,447	3,095	5,989
Purchases and Issuances
Sales and Settlements
Transfers in and/or (out) of Level 3
Changes in financial liabilities with inputs classified within Level 3 of the fair value, ending balance	$ 10,656	16,725	$ 10,656	16,725
Class B conversion liability [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Changes in financial liabilities with inputs classified within Level 3 of the fair value, beginning balance		67,758		81,378
Net Realized/ Unrealized Losses (Gains) Included in Earnings		57,739		44,119
Purchases and Issuances
Sales and Settlements		(125,497)		(125,497)
Transfers in and/or (out) of Level 3
Changes in financial liabilities with inputs classified within Level 3 of the fair value, ending balance

Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Mar. 29, 2013	Apr. 30, 2013	Sep. 30, 2012
Fair Value Measurements Of Financial Instruments [Line Items]
Maximum possible earn-out			$ 6.0
Expected life of common stock warrants	7 years 8 months 12 days
Expected volatility	42.70%
Risk free rate	1.60%
Subsequent Event [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Maximum earn-out payment		$ 3.8

- Definition

Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 35
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6910684&loc=d3e4570-128470

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6411-128476

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 30
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=18499824&loc=d3e4237-128469

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 30
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=18499824&loc=d3e4243-128469

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 40
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6910732&loc=d3e4805-128471

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 25
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6946367&loc=d3e3642-128468

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 25
-Paragraph 27
-URI http://asc.fasb.org/extlink&oid=6946367&loc=d3e3629-128468

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(3),(c)(1)
-URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6405-128476

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph g(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 29, 30, 41, 42, 64
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 65
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Inventories - Components of Inventories (Detail) - USD ($) $ in Thousands	Mar. 29, 2013	Sep. 28, 2012
Inventory Disclosure [Abstract]
Raw materials	$ 32,081	$ 29,922
Work-in-process	4,289	5,472
Finished goods	20,832	22,065
Total	$ 57,202	$ 57,459

Inventories - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 29, 2013	Mar. 29, 2013
Inventory Disclosure [Abstract]
Increase in inventory	$ 1.1	$ 1.1

Property and Equipment - Components of Property and Equipment (Detail) - USD ($) $ in Thousands	Mar. 29, 2013	Sep. 28, 2012
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 59,538	$ 55,152
Less accumulated depreciation and amortization	(29,999)	(24,943)
Property and equipment - net	29,539	30,209
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	44,176	38,795
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	4,987	4,876
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	717	699
Construction in process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	2,984	4,188
Computer equipment and software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 6,674	$ 6,594

- Definition

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

+ References + Details

Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Property Plant And Equipment [Abstract]
Depreciation and amortization expense	$ 2.6	$ 2.2	$ 5.2	$ 4.2

Debt - Additional Information (Detail) - Revolving Credit Facilities [Member] - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Mar. 29, 2013	Sep. 30, 2011	Sep. 28, 2012
Debt Instrument [Line Items]
Revolving credit facility maturity date		Sep. 30, 2016
Revolving credit facility maximum borrowing availability		$ 150.0
Revolving credit facility interest date	Borrowings under the revolving credit facility bear a variable interest rate equal to (i) the greater of the lender's prime rate, the federal funds effective rate plus 0.5%, or an adjusted LIBOR plus 1.0%, in each case plus either an additional 1.25%, 1.50% or 1.75%, subject to certain conditions, or (ii) an adjusted LIBOR rate plus either 2.25%, 2.50% or 2.75%, subject to certain conditions
Revolving credit facility, LIBOR rate	Adjusted LIBOR plus 1.0%
Revolving credit facility federal funds effective rate	Federal funds effective rate plus 0.5%
Federal funds effective rate	0.50%
LIBOR rate	1.00%
Outstanding borrowing under revolving credit facility	$ 0.0		$ 0.0
Interest Rate LIBOR One [Member]
Debt Instrument [Line Items]
Adjusted LIBOR rate percentage	1.25%
Interest Rate LIBOR Two [Member]
Debt Instrument [Line Items]
Adjusted LIBOR rate percentage	1.50%
Interest Rate LIBOR Three [Member]
Debt Instrument [Line Items]
Adjusted LIBOR rate percentage	1.75%
Interest Rate LIBOR Four [Member]
Debt Instrument [Line Items]
Adjusted LIBOR rate percentage	2.25%
Interest Rate LIBOR Five [Member]
Debt Instrument [Line Items]
Adjusted LIBOR rate percentage	2.50%
Interest Rate LIBOR Six [Member]
Debt Instrument [Line Items]
Adjusted LIBOR rate percentage	2.75%

Intangible Assets - Additional Information (Detail) $ in Millions	Mar. 29, 2013 USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Carrying value of trade name	$ 3.4

Intangible Assets - Summary of Amortized Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 29, 2013	Sep. 28, 2012
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 26,154	$ 26,154
Less accumulated amortization	(12,356)	(10,778)
Intangible assets - net	13,798	15,376
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	13,754	13,754
Less accumulated amortization	(7,306)	(6,358)
Intangible assets - net	6,448	7,396
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	12,400	12,400
Less accumulated amortization	(5,050)	(4,420)
Intangible assets - net	$ 7,350	$ 7,980

Intangible Assets - Summary of Amortization Expense of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Schedule Of Amortization Expenses Recognized [Line Items]
Total	$ 789	$ 639	$ 1,578	$ 1,279
Cost of revenue [Member]
Schedule Of Amortization Expenses Recognized [Line Items]
Total	474	382	948	764
Selling, general and administrative [Member]
Schedule Of Amortization Expenses Recognized [Line Items]
Total	$ 315	$ 257	$ 630	$ 515

Intangible Assets - Summary of Estimated Amortization of Intangible Assets in Future Fiscal Years (Detail) - USD ($) $ in Thousands	Mar. 29, 2013	Sep. 28, 2012
Goodwill And Intangible Assets Disclosure [Abstract]
2013 (rest of fiscal year)	$ 1,577
2014	3,155
2015	3,155
2016	2,391
2017	1,627
Thereafter	1,893
Intangible assets - net	$ 13,798	$ 15,376

Stockholder's Equity - Additional Information (Detail) - $ / shares	Mar. 29, 2013	Sep. 28, 2012
Stockholders Equity [Abstract]
Preferred stock, par value	$ 0.001
Preferred stock, shares authorized	10,000,000
Common stock, par value	$ 0.001
Common stock, shares authorized	300,000,000
Unvested shares of restricted common stock excluded from outstanding shares	93,000	131,000

Income (Loss) Per Share - Computation for Basic and Diluted Net Income Per Share of Common Stock (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Numerator:
Net income (loss)	$ 8,086	$ (53,561)	$ 14,194	$ (31,519)
Accretion to redemption value of redeemable convertible preferred stock		(1,201)		(2,616)
Net income (loss) attributable to common stockholders	$ 8,086	$ (54,762)	$ 14,194	$ (34,135)
Denominator:
Weighted average common shares outstanding-basic	45,789	6,829	45,649	4,306
Weighted average common shares outstanding-diluted	47,168	6,829	46,986	4,306
Common stock income (loss) per share:
Basic	$ 0.18	$ (8.02)	$ 0.31	$ (7.93)
Diluted	$ 0.17	$ (8.02)	$ 0.30	$ (7.93)
Options and warrants [Member]
Denominator:
Dilutive effect of options and warrants	1,379		1,337

Commitments and Contingencies - Additional Information (Detail)	1 Months Ended	6 Months Ended	12 Months Ended
	Jan. 28, 2013 USD ($)	Mar. 29, 2013 USD ($) Defendant	Sep. 28, 2012 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Outstanding unused letters of credit from a bank		$ 246,000	$ 246,000
Outstanding noncancelable purchase commitments		$ 4,700,000	$ 6,300,000
Ex-Employee defendants \| Defendant		5
Number of plaintiff's claims, voluntarily dismissed \| Defendant		2
Alleged damages	$ 2,200,000

Restructurings - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 28, 2013	Mar. 30, 2012	Sep. 28, 2012	Mar. 29, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 1,586,000	$ 1,900,000
Unpaid restructuring costs				$ 14,000
Subsequent Event [Member] \| Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,100,000
Subsequent Event [Member] \| Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,300,000

Restructurings - Summary of Costs Related to Restructuring Actions (Detail) $ in Thousands	6 Months Ended
	Mar. 29, 2013 USD ($)
Restructuring And Related Activities [Abstract]
Beginning Balance	$ 328
Payments	(314)
Ending Balance	$ 14

Share-Based Compensation - Effects of Share-Based Compensation Expense Related to Share-Based Awards to Employees and Non-employees (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 1,683	$ 431	$ 3,306	$ 904
Cost of revenue [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	292	38	609	68
Research and development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	484	114	856	212
Selling, general and administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 907	$ 279	$ 1,841	$ 624

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References + Details

Share-Based Compensation - Summary of Stock Option Activity (Detail) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Mar. 29, 2013 USD ($) $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of Shares, Outstanding - Beginning Balance \| shares	1,861
Number of Shares, Exercised \| shares	(310)
Number of Shares, Forfeited, canceled or expired \| shares	(396)
Number of Shares, Outstanding - Ending Balance \| shares	1,155
Number of Shares, Options vested and expected to vest as of March 29, 2013 \| shares	1,120
Number of Shares, Options vested and exercisable as of March 29, 2013 \| shares	774
Weighted-Average Exercise Price Per Share, Outstanding - Beginning Balance \| $ / shares	$ 1.23
Weighted-Average Exercise Price Per Share, Exercised \| $ / shares	1.12
Weighted-Average Exercise Price Per Share, Forfeited, canceled or expired \| $ / shares	0.64
Weighted-Average Exercise Price Per Share, Outstanding - Ending Balance \| $ / shares	1.45
Weighted-Average Exercise Price Per Share, Options vested and expected to vest as of March 29, 2013 \| $ / shares	1.45
Weighted-Average Exercise Price Per Share, Options vested and exercisable as of March 29, 2013 \| $ / shares	$ 1.31
Weighted-Average Remaining Contractual Term (in years), Beginning Balance	7 years 1 month 6 days
Weighted-Average Remaining Contractual Term (in years), Ending Balance	6 years 7 months 6 days
Weighted-Average Remaining Contractual Term (in years), Options vested and expected to vest as of March 29, 2013	6 years 7 months 6 days
Weighted-Average Remaining Contractual Term (in years), Options vested and exercisable as of March 29, 2013	6 years 7 months 6 days
Aggregate Intrinsic Value, Beginning Balance \| $	$ 21,352
Aggregate Intrinsic Value, Ending Balance \| $	16,883
Aggregate Intrinsic Value, Options vested and expected to vest as of March 29, 2013 \| $	16,377
Aggregate Intrinsic Value, Options vested and exercisable as of March 29, 2013 \| $	$ 11,430

Share-Based Compensation - Additional Information (Detail) shares in Millions	6 Months Ended
	Mar. 29, 2013 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised	$ 4,100,000
Compensation cost expected to be recognized	1 year 2 months 12 days
Total intrinsic value of awards vesting	$ 2,700,000
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	$ 11,700,000
Compensation cost expected to be recognized	3 years 1 month 6 days
Unvested Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	$ 316,000
2012 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in common stock available for issuance, shares \| shares	0.6
Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in common stock available for issuance, shares \| shares	1.9

Share-Based Compensation - Summary of Restricted Stock and Units Activity (Detail) shares in Thousands, $ in Thousands	6 Months Ended
	Mar. 29, 2013 USD ($) shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of Shares, Unvested - Beginning Balance	582
Number of Shares, Granted	604
Number of Shares, Vested	(167)
Number of Shares, Forfeited, canceled or expired	(16)
Number of Shares, Issued and unvested - Ending Balance	1,003
Number of Shares, Shares expected to vest - March 29, 2013	849
Weighted-Average Remaining Contractual Term (in years), Unvested-September 28, 2012	2 years 10 months 24 days
Weighted-Average Remaining Contractual Term (in years), Issued and unvested-March 29, 2013	3 years 1 month 6 days
Weighted- Average Remaining Contractual Term (in years), Shares expected to vest-March 29, 2013	3 years 1 month 6 days
Aggregate Intrinsic Value, Unvested - Beginning Balance \| $	$ 7,391
Aggregate Intrinsic Value, Issued and unvested - Ending Balance \| $	16,115
Aggregate Intrinsic Value, Shares expected to vest-March 29, 2013 \| $	$ 13,650

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Mar. 29, 2013	Sep. 28, 2012
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate	35.00%
Deferred income tax benefit		$ 1.7

- Definition

The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Deferred Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6510177

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.7)
-URI http://asc.fasb.org/extlink&oid=6889476&loc=d3e330036-122817

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 289
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 45
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section I
-Subsection 7

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Related Party Transactions - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013
Related Party Transactions [Abstract]
Cash paid to GaAs Labs			$ 60,000
Selling, general and administration expenses		$ 180,000
Agreement with Ubiquiti Networks, Inc. description			Two of the Company's directors are also directors of Ubiquiti. An affiliate of one of the directors is also an Ubiquiti stockholder.
Payments for engineering services based on milestone achievement	$ 500,000		$ 500,000
Payments received from Ubiquiti	100,000		100,000
Minimum service requirements or payment obligations	0		$ 0
Notice period to terminate agreement			30 days
Other income - related party	$ 86,000		$ 170,000

Supplemental Cash Flow Information - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012
Supplemental Cash Flow Elements [Abstract]
Unpaid amounts related to purchase of assets	$ 1.1	$ 1.7

Geographic and Significant Customer Information - Summary of Different Geographic Regions (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012	Sep. 28, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	$ 77,824	$ 77,480	$ 152,838	$ 150,515
Long-Lived Assets by Geographic Region	29,539		29,539		$ 30,209
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	46,454	38,645	90,894	76,330
Long-Lived Assets by Geographic Region	22,811		22,811		23,027
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	31,370	$ 38,835	61,944	$ 74,185
Long-Lived Assets by Geographic Region	$ 6,728		$ 6,728		$ 7,182

Geographic and Significant Customer Information - Summary of Different Geographic Regions (Parenthetical) (Detail)	Mar. 29, 2013	Sep. 28, 2012	Mar. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic segment revenue threshold	10.00%		10.00%
Percentage of geographic segment long-lived assets threshold	10.00%	10.00%
Asia-Pacific region [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic segment long-lived assets threshold	13.00%

Geographic and Significant Customer Information - Summary of Customer Concentrations as Percentage of Total Sales and Accounts Receivable (Detail)	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012	Sep. 28, 2012
Revenue from External Customer [Line Items]
Revenue	61.00%	59.00%	61.00%	54.00%
Customer A [Member]
Revenue from External Customer [Line Items]
Revenue	15.00%	19.00%	15.00%	19.00%
Accounts Receivable	11.00%		11.00%		16.00%
Customer B [Member]
Revenue from External Customer [Line Items]
Revenue	25.00%	13.00%	26.00%	13.00%
Accounts Receivable	21.00%		21.00%		18.00%

Geographic and Significant Customer Information - Additional Information (Detail) - Customer	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Segment Reporting [Abstract]
Number of major customers			10
Total revenue of customer in percentage	61.00%	59.00%	61.00%	54.00%