Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Results of Operations, Income before Income Taxes [Abstract]
Domestic	$ 51,859	$ 42,619	$ 56,782
Foreign	(60,720)	104	821
(Loss) income before income taxes	(8,861)	42,723	57,603
Current:
Federal	344	(13,463)	(83)
State	(36)	137	(47)
Foreign	(1,498)	(541)	(880)
Current income tax (provision) benefit	(1,190)	(13,867)	(1,010)
Deferred:
Federal	(18,000)	45,423	296
State	(1,487)	3,894	8
Foreign	(68)	59	175
Deferred income tax (provision) benefit	(19,555)	49,376	479
(Provision) benefit for income taxes	$ (20,745)	$ 35,509	$ (531)
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory federal rate	35.00%	35.00%	35.00%
State taxes, net	(7.00%)	3.00%	0.00%
Intellectual property sale	0.00%	144.00%	0.00%
Research and development credits	(1.00%)	(3.00%)	(2.00%)
Foreign rate differential	(252.00%)	2.00%	0.00%
Foreign dividends	3.00%	1.00%	0.00%
Valuation allowance	(19.00%)	(289.00%)	(37.00%)
Change in uncertain tax benefit accrual	3.00%	31.00%	0.00%
Tax rate change	0.00%	(7.00%)	5.00%
Other	4.00%	0.00%	0.00%
Effective income tax rate	(234.00%)	(83.00%)	1.00%