Supplemental Financial Information (Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012		Dec. 31, 2011
Finite Lived Intangible Assets [Line Items]
Intangible Assets, Gross	$ 452,264		$ 425,745
Accumulated Amortization	(323,596)		(267,263)
Intangible Assets, Net	128,668	[1]	158,482	[1]
Core Technology [Member]
Finite Lived Intangible Assets [Line Items]
Intangible Assets, Gross	151,861		151,861
Accumulated Amortization	(120,954)		(102,874)
Intangible Assets, Net	30,907		48,987
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Intangible Assets, Gross	94,906		90,600
Accumulated Amortization	(68,086)		(53,221)
Intangible Assets, Net	26,820		37,379
Existing Technology [Member]
Finite Lived Intangible Assets [Line Items]
Intangible Assets, Gross	115,200		115,200
Accumulated Amortization	(81,300)		(63,815)
Intangible Assets, Net	33,900		51,385
Developed Technology Assets [Member]
Finite Lived Intangible Assets [Line Items]
Intangible Assets, Gross	63,951		52,484
Accumulated Amortization	(49,743)		(45,741)
Intangible Assets, Net	14,208		6,743
Estimated average life	3 years		3 years
Backlog [Member]
Finite Lived Intangible Assets [Line Items]
Intangible Assets, Gross	400		400
Accumulated Amortization	(400)		(400)
Intangible Assets, Net	0		0
In-Process Research And Development [Member]
Finite Lived Intangible Assets [Line Items]
Intangible Assets, Gross	16,746
Accumulated Amortization	(1,093)
Intangible Assets, Net	15,653
Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Intangible Assets, Gross	9,200		9,200
Accumulated Amortization	(2,020)		(1,182)
Intangible Assets, Net	7,180		8,018
In-Process Research And Development [Member]
Finite Lived Intangible Assets [Line Items]
Intangible Assets, Gross			6,000
Accumulated Amortization			(30)
Intangible Assets, Net			$ 5,970
Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	10 years
Maximum [Member] | Core Technology [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	9 years		8 years
Maximum [Member] | Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	10 years		10 years
Maximum [Member] | Existing Technology [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	7 years		5 years
Maximum [Member] | Backlog [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	1 year		1 year
Maximum [Member] | In-Process Research And Development [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	5 years
Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	1 year
Minimum [Member] | Core Technology [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	5 years		5 years
Minimum [Member] | Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	2 years		4 years
Minimum [Member] | Existing Technology [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	3 years		3 years
Minimum [Member] | In-Process Research And Development [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	4 years
Minimum [Member] | Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Estimated average life	6 years		8 years

[1] As Restated