Net Income Per Share (Details 1) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	1,526	4,407	1,326	4,526
Options to purchase shares of common stock
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	1,503	4,399	1,308	4,517
Non-vested shares of restricted stock
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	23	8	18	9