Short-Term Loan (Details) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011		Dec. 26, 2010
Short-term Debt [Line Items]
Term Loans Amount	$ 220,000,000
Repayment of short-term loan		180,991,000	[1]	40,000,000	[1]
Short-term Debt				$ 181,000,000
Debt instrument basis spread on reference rate	0.50%
Percent added to the reference rate	1.50%
Loan maturity date	Oct. 15, 2025	Oct. 15, 2025
Debt Instrument Repayment Date	January 10, 2011
Line of Credit [Member]
Short-term Debt [Line Items]
Loan maturity date	Jan. 17, 2011

[1] As Restated