Debt Obligations - Premium on Debt Redemptions (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended
	Dec. 25, 2011	Sep. 25, 2011	Jun. 26, 2011	Mar. 27, 2011	Dec. 25, 2011	Dec. 26, 2010	Dec. 27, 2009
Debt Instrument [Line Items]
Premium on debt redemptions	$ 0	$ 46,381	$ 0	$ 0	$ 46,381	$ 0	$ 9,250
Redemption of long-term debt					250,000	0	250,000
Notes Due 2010 Called 2009 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount							250,000
Interest rate on debt							4.50%
Redemption of long-term debt							$ 260,000