Income Taxes (Details) (USD $)	3 Months Ended
	Apr. 01, 2012	Apr. 03, 2011
Income Taxes (Textual) [Abstract]
Benefit from income taxes	$ (49,062,000)	$ (4,104,000)
Portion of income tax benefit due to release of valuation allowance	43,200,000
Reversal in liabilities for uncertain tax positions	10,200,000	8,200,000
Unrecognized tax benefits included in liabilities for uncertain tax positions	5,200,000	4,800,000
Interest and penalties included in liabilities for uncertain tax positions	5,000,000	3,400,000
Unrecognized tax benefits	174,300,000
Possible estimated decrease in unrecognized tax benefits within the next 12 months	$ 16,800,000