Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
Mar. 29, 2013	Mar. 30, 2012	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Benefit from income taxes	$ (5,467,000)	$ (626,000)
Federal statutory income tax rate	35.00%	35.00%
Gross unrecognized tax benefits including interest and penalties	60,800,000		59,200,000
Net increase in interest and penalties related to uncertain tax positions	600,000
Interest and possible penalties related to uncertain tax positions	$ 7,700,000

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

+ References+ Details

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

+ References+ Details

- Definition

This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

+ References+ Details

- Definition

This element represents the total of interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties in the period in which the entity claims or expects to claim a tax position, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

+ References+ Details