Stockholders' Equity (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Oct. 21, 2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)			6,000,000
Payments for Repurchase of Common Stock	$ 15,908,000	$ 336,000
Shares Repurchased And Retired Related to Net of Issuances Shares, Shares	1,000	8,000
Shares Repurchased And Retired Related To Net Issuances Values	33,000	300,000
Repurchase plan authorized in Oct 2008 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchased and Retired During Period, Shares	500,000
Payments for Repurchase of Common Stock	$ 15,900,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	2,300,000