Reconciliation of Total Segment Income to Consolidated Income Before Provision for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 24, 2013	Mar. 25, 2012
Segment Reporting [Abstract]
Total Segment Income	$ 86,684	$ 76,616
Depreciation and amortization	(5,631)	(5,216)
Gains on sale/disposal of assets	88	37
Non-cash compensation expense	(5,616)	(4,290)
2012 recapitalization-related expenses		(252)
Income from operations	75,525	66,895
Interest income	42	154
Interest expense	(20,945)	(32,250)
Income before provision for income taxes	$ 54,622	$ 34,799