Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Apr. 01, 2012
Income Tax Disclosure [Abstract]
Benefit from income taxes	$ (2,300,000)	$ (49,062,000)
Reversal in liabilities for uncertain tax positions	8,600,000	10,200,000
Unrecognized tax benefits related to uncertain tax positions	3,800,000	5,200,000
Interest and penalties related to uncertain tax positions	4,800,000	5,000,000
Portion of income tax benefit due to release of valuation allowance		43,200,000
Unrecognized tax benefits	195,300,000
Estimated decrease in unrecognized tax benefits, plus accrued interest and penalties	$ 23,800,000