Share-Based Compensation (Component of Net Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2015	Dec. 31, 2014	Dec. 25, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	$ 6,635	$ 5,846	$ 4,852
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	0	52	558
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	5,821	5,009	3,488
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	$ 814	$ 785	$ 806