Equity Compensation (Details 3) (Options)	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Options
Assumptions (weighted average):
Risk-free interest rate (as a percent)	1.80%	1.10%	1.10%
Expected dividend yield (as a percent)	1.00%	0.10%	0.00%
Expected volatility (as a percent)	35.70%	37.50%	37.80%
Expected term (in years)	6 years	6 years	6 years