Acquisitions (Details) (USD $)	12 Months Ended		0 Months Ended	3 Months Ended	12 Months Ended
	Nov. 03, 2012		Mar. 30, 2012 Multigig Inc [Member]	Nov. 03, 2012 Multigig Inc [Member]	Nov. 03, 2012 Multigig Inc [Member]	Oct. 29, 2011 Multigig Inc [Member]	Nov. 03, 2012 Lyric Semiconductor, Inc [Member]	Oct. 29, 2011 Lyric Semiconductor, Inc [Member]	Jun. 09, 2011 Lyric Semiconductor, Inc [Member]
Business Acquisition [Line Items]
Fair value of the consideration transferred totaled			$ 26,800,000						$ 27,800,000
Initial cash payments			24,200,000						14,000,000
Contingent consideration							12,200,000		13,800,000
Period of cash payments related to contingent consideration							June 2011 through June 2016
Payments for contingent consideration	2,000,000	[1]					2,000,000
Current portion of contingent consideration liability							6,800,000
Noncurrent portion of contingent consideration liability							5,400,000
Indemnification holdback			2,600,000
Indemnification holdback months to be paid					15 months
Indemnification holdback adjustment				100,000	100,000
Adjustment to deferred taxes and goodwill after purchase accounting was finalized				400,000
In-process research and development			15,600,000				12,200,000
Developed technology			1,100,000
Goodwill acquired			7,000,000		7,298,000	0	0	18,865,000
Goodwill							18,900,000
Deferred tax assets (liabilities)			3,100,000				(3,300,000)
Goodwill deductible for tax purposes	0						0
Obligated payment period					5 years		20 years
Obligated to pay royalties on revenue recognized from the sale of products and licenses				1,000,000	1,000,000		25,000,000
Acquisition related costs					500,000		200,000
Royalty payments					$ 0		$ 0

[1] The payment is reflected in the statements of cash flows as cash used in financing activities related to the liability recognized at fair value as of the acquisition date and as cash provided by operating activities related to the fair value adjustments previously recognized in earnings.