Open Market Share Repurchase Program (Details) (USD $)	3 Months Ended
	Mar. 25, 2012	Mar. 27, 2011
Open Market Share Repurchase Program [Abstract]
Open market repurchase program, amount remaining for future share repurchase	$ 82,300,000
Stock repurchase program, approved amount	200,000,000
Shares of common stock outstanding	57,899,348
Repurchased and retired common stock, shares		357,605
Repurchase of common stock, value		$ 5,839,000