Debt Obligations - Interest Expense, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 23, 2012	Sep. 25, 2011	Sep. 23, 2012	Sep. 25, 2011
Debt Disclosure [Abstract]
Cash interest expense	$ 14,460	$ 18,712	$ 43,256	$ 64,880
Non-cash amortization of discount on debt	1,129	1,445	3,386	5,632
Capitalized interest	0	(11)	(14)	(343)
Interest income	(92)	(107)	(215)	(387)
Interest expense, net	$ (15,497)	$ (20,039)	$ (46,413)	$ (69,782)