Restructuring and Other Charges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Oct. 01, 2016	Oct. 03, 2015
Restructuring Cost and Reserve [Line Items]
Beginning balance			$ 1,137
Restructuring and other charges, net	$ 101	$ 303	14,613	$ 4,164
Restructuring Activities Non Cash Charges Adjustments			(133)
Cash payments			(15,077)
Effect of foreign currency translation			258
Ending balance	798		798
Employee Severance and Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance			751
Restructuring Activities Non Cash Charges Adjustments			0
Cash payments			(14,484)
Effect of foreign currency translation			286
Ending balance	690		690
Excess Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance			386
Restructuring Activities Non Cash Charges Adjustments			(133)
Cash payments			(593)
Effect of foreign currency translation			(28)
Ending balance	108		108
2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net			14,116
Ending balance	$ 600		600
2016 Restructuring Plan [Member] | Employee Severance and Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net			14,116
2016 Restructuring Plan [Member] | Excess Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net			0
Prior restructuring plans [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net			497
Prior restructuring plans [Member] | Employee Severance and Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net			21
Prior restructuring plans [Member] | Excess Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net			$ 476