Restructuring and Other Charges (Details 1) - USD ($) $ in Thousands	12 Months Ended			24 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Jan. 03, 2015
Cadence's Restructuring Plans
Beginning Balance	$ 6,210	$ 14,224	$ 4,343	$ 4,343
Restructuring and other charges (credits), net	4,511	10,252	17,999
Non-cash charges	(116)	(2,450)	(309)
Cash payments	(9,381)	(15,285)	(7,895)
Effect of foreign currency translation	(87)	(531)	86
Ending Balance	1,137	6,210	14,224	6,210
Severance and Benefits [Member]
Cadence's Restructuring Plans
Beginning Balance	4,462	10,672	0	0
Restructuring and other charges (credits), net	3,636	8,004	17,589
Non-cash charges	0	0	0
Cash payments	(7,322)	(13,967)	(6,944)
Effect of foreign currency translation	(25)	(247)	27
Ending Balance	751	4,462	10,672	4,462
Excess Facilities [Member]
Cadence's Restructuring Plans
Beginning Balance	1,267	3,552	4,343	4,343
Restructuring and other charges (credits), net	1,095	(945)	101
Non-cash charges	(116)	0	0
Cash payments	(1,798)	(1,056)	(951)
Effect of foreign currency translation	(62)	(284)	59
Ending Balance	386	1,267	3,552	1,267
Other [Member]
Cadence's Restructuring Plans
Beginning Balance	481	0	0	0
Restructuring and other charges (credits), net	(220)	3,193	309
Non-cash charges	0	(2,450)	(309)
Cash payments	(261)	(262)	0
Effect of foreign currency translation	0	0	0
Ending Balance	$ 0	$ 481	$ 0	$ 481