Short-Term Loan (Details) (USD $)	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 27, 2011	Jun. 26, 2011	Dec. 26, 2010	Nov. 18, 2010
Senior Convertible Notes [Abstract]
Short-term loan			$ 181,000,000	$ 220,000,000
Repayment of short-term loan		180,991,000	40,000,000
Loan maturity date	Jan. 17, 2011
Interest expense, net related to the short-term loan	$ 300,000