Fair Value of Financial Instruments (Details 3) (Contingent consideration, Monte Carlo simulation)	12 Months Ended
	Dec. 28, 2013
Quantitative information for Level 3 fair value measurements liabilities
Expected revenue volatility (as a percent)	20.00%
Low end of range
Quantitative information for Level 3 fair value measurements liabilities
Expected revenue growth rate (as a percent)	26.20%
Expected term	1 year
Estimated discount rate (as a percent)	0.10%
High end of range
Quantitative information for Level 3 fair value measurements liabilities
Expected revenue growth rate (as a percent)	51.90%
Expected term	5 years
Estimated discount rate (as a percent)	1.60%