Stockholders' Equity (Tables)

9 Months Ended

Oct. 01, 2011

Stockholders' Equity [Abstract]

Share Count And Par Value Data Related To Stockholders' Equity

		December 31, 2010		December 31, 2010
	October 1, 2011		December 31, 2010
Preferred Stock
Par value per share	$	0.01	$	0.01
Shares authorized		10,000,000		10,000,000
Shares outstanding		—		—
Common Stock - Class A
Par value per share	$	0.01	$	0.01
Shares authorized		150,000,000		150,000,000
Shares issued		72,151,857		72,151,857
Shares outstanding		52,388,510		55,711,325
Treasury Stock
Shares held		19,763,347		16,440,532

Roll Forward Of Class A Common Shares Outstanding

	Nine Months Ended
	October 1, 2011			October 2, 2010
Balance at the beginning of the year		55,711,325			58,318,983
Repurchases		(3,924,910	)		(2,449,286	)
Stock option, rights and ESPP issuances		453,728			296,512
Restricted share issuances		214,324			375,279
Restricted share forfeitures		(14,013	)		(14,627	)
Shares withheld for tax obligations		(51,944	)		(7,198	)
Balance at the end of the period		52,388,510			56,519,663