Acquisitions (Details) (USD $)		9 Months Ended		12 Months Ended		0 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Aug. 03, 2013	Aug. 03, 2013 Lyric Semiconductor, Inc [Member]	Jul. 30, 2011 Lyric Semiconductor, Inc [Member]	Oct. 29, 2011 Lyric Semiconductor, Inc [Member]	Jun. 09, 2011 Lyric Semiconductor, Inc [Member]	Mar. 30, 2012 Multigig, Inc [Member]	Nov. 03, 2012 Multigig, Inc [Member]	Aug. 03, 2013 Multigig, Inc [Member]	Nov. 03, 2012 Multigig, Inc [Member]	Aug. 04, 2012 Multigig, Inc [Member]
Business Acquisition [Line Items]
Fair value of the consideration transferred totaled			$ 27,800,000			$ 26,800,000
Initial cash payments			14,000,000			24,200,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High					13,800,000
Business Combination, Contingent Consideration, Liability		8,300,000
Indemnification holdback						2,600,000
Indemnification holdback months to be paid						15 months
BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsNotAmortizable1		12,200,000				15,600,000
Business Acquisition Indemnification Holdback Adjustment										100,000
BusinessAcquisitionIndemnificationHoldbackFinalPayment								2,500,000
Developed technology						1,100,000
Goodwill acquired						7,000,000
Deferred tax assets (liabilities)						3,100,000
Obligation payment period		20 years						5 years
Obligated to pay royalties on revenue recognized from the sale of products and licenses		25,000,000						1,000,000
Acquisition related costs				200,000					500,000
Goodwill		18,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent		3,300,000
Current portion of contingent consideration liability		4,800,000
Noncurrent portion of contingent consideration liability		3,500,000
Payments for contingent consideration		6,000,000
Goodwill deductible for tax purposes	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets							400,000
Royalty payments		$ 0						$ 0
Period of cash payments related to contingent consideration		June 2011 through June 2016