Stock-Based Compensation Stock-Based Compensation (Restricted Stok Awards) (Details) (Non Employee Directors Plan [Member], Restricted Stock [Member], USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 27, 2013	Dec. 28, 2012
Non Employee Directors Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Restricted Stocks Awarded	26,201	27,573
Price Per Share	$ 26.72	$ 25.39
Stock-based compensation expense	$ 0.7	$ 0.7