Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2012

Stockholders' Equity [Abstract]

Share Count And Par Value Data Related To Stockholders' Equity

	As of
	March 31, 2012		December 31, 2011
Preferred Stock
Par value per share	$	0.01	$	0.01
Shares authorized		10,000,000		10,000,000
Shares outstanding		0		0
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		51,908,374		52,095,166
Treasury stock
Shares held		20,243,483		20,056,691

Roll Forward Of Class A Common Shares Outstanding

	Three Months Ended
	March 31, 2012			April 2, 2011
Balance at the beginning of the year		52,095,166			55,711,325
Repurchases		(264,567	)		(1,100,000	)
Stock option and ESPP issuances		76,063			158,764
Restricted share issuances		3,635			3,374
Restricted share forfeitures		(1,923	)		(7,445	)
Shares withheld for tax obligations		0			(35,157	)
Balance at the end of the period		51,908,374			54,730,861