Stockholder's Equity (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended
	Nov. 04, 2010	Jun. 25, 2011	Dec. 25, 2010	Jun. 26, 2010
Stockholder's Equity
Shares of common stock issued for stock option exercises		100,000		2,000,000
Share repurchase program, amount approved	$ 80,000,000
Shares repurchased		3,500,000	216,000
Average cost per share repurchased		$ 15.94	$ 12.80
Average cost of shares repurchased		56,493,000	2,800,000
Remaining amount available for share repurchases under stock repurchase program		$ 20,700,000