Stock-Based Compensation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013		Mar. 31, 2012
Total stock-based compensation expense, net of tax	$ 284		$ 4,547
Stock-Based Compensation Expense/(Benefit)	432	[1]	6,964	[1]
Income tax benefit	(148)		(2,417)
Number of stock plans approved by shareholders	3
CEO Transition Costs	(391)		5,595
CEO Transition Costs, Net of Tax	(257)		3,654
Stock Options [Member]
Stock-Based Compensation Expense/(Benefit)	545		2,011
Time-Based Stock Awards And Performance Stock Awards [Member]
Stock-Based Compensation Expense/(Benefit)	$ (113)		$ 4,953

[1] Includes $(0.4) million and $5.6 million of CEO transition (benefit) costs for the three months ended March 30, 2013 and March 31, 2012, respectively.