Share-Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Tax benefit from share-based compensation [Line Items]
Share-based Compensation	$ 600,000	$ 900,000	$ 2,376,000	$ 2,511,000
Excess Tax Benefit from Share-based Compensation, Operating Activities			(223,000)	(874,000)
Manager Share Appreciation Plan, Liabilities	100,000		100,000
Maximum [Member]
Tax benefit from share-based compensation [Line Items]
Excess Tax Benefit from Share-based Compensation, Operating Activities	(100,000)	(100,000)
Manager Share Appreciation Plan Compensation				100,000
Manager Share Appreciation Plan, Liabilities		$ 100,000		$ 100,000