Debt Obligations - Debt & Capital Leases (Details) (USD $) In Thousands, unless otherwise specified	Dec. 25, 2011	Aug. 15, 2011	Dec. 26, 2010
Debt Instrument [Line Items]
Total long-term and short-term debt	$ 766,439		$ 989,719
Capital lease obligations	6,701		6,724
Total debt and capital lease obligations	773,140		996,443
Long-term debt, fair value	800,000		1,100,000
Long-term debt, maturities, repayments of principal in next twelve months	75,000
Long-term debt, maturities, repayments of principal in year two	0
Long-term debt, maturities, repayments of principal in year three	0
Long-term debt, maturities, repayments of principal in year four	250,000
Long-term debt, maturities, repayments of principal in year five	225,000
Long-term debt, maturities, repayments of principal after year five	250,000
Total face amount of maturities	800,000
Unamortized debt costs	(33,561)
Carrying value of debt	766,439		989,719
Notes Due 2012 [Member]
Debt Instrument [Line Items]
Short-term debt	74,900
Long-term debt			74,771
Interest rate on debt	4.61%
Unamortized debt costs	(100)		(229)
Notes Due 2015 [Member]
Debt Instrument [Line Items]
Long-term debt	249,891		249,860
Interest rate on debt	5.00%
Unamortized debt costs	(109)		(140)
Notes Due 2015 Called 2011 [Member]
Debt Instrument [Line Items]
Long-term debt	0		227,680
Interest rate on debt		14.053%
Unamortized debt costs	0		(22,320)
Notes Due 2016 [Member]
Debt Instrument [Line Items]
Long-term debt	220,787		220,102
Interest rate on debt	6.625%
Unamortized debt costs	(4,213)		(4,898)
Option To Repurchase Headquarters Building 2019 [Member]
Debt Instrument [Line Items]
Long-term debt	220,861		217,306
Unamortized debt costs	$ (29,139)		$ (32,694)