Debt Obligations - Interest Expense, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2013	Sep. 23, 2012	Sep. 29, 2013	Sep. 23, 2012
Debt Disclosure [Abstract]
Cash interest expense	$ 14,494	$ 14,453	$ 41,635	$ 43,249
Non-cash amortization of discount on debt	1,355	1,129	3,622	3,386
Capitalized interest	0	0	0	(14)
Interest income	(395)	(92)	(1,088)	(215)
Total interest expense, net	$ 15,454	$ 15,490	$ 44,169	$ 46,406