Net Income Per Share (Details 1) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	1,298	1,526	1,065	1,326
Options to purchase shares of common stock
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	1,279	1,503	1,014	1,308
Non-vested shares of restricted stock
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	19	23	51	18