Derivative Instruments - Balance Sheet Location (Details) - Foreign Exchange Contract [Member] - USD ($) $ in Thousands	Apr. 03, 2016	Dec. 31, 2015
Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	$ 5,846	$ 3,453
Gross amounts offset in the balance sheet	(351)	(1,181)
Net amounts presented in other current assets	5,495	2,272
Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	65	1,330
Gross amounts offset in the balance sheet	0	(71)
Net amounts presented in other current liabilities	65	1,259
Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	3,772	2,908
Gross amounts offset in the balance sheet	(227)	(943)
Net amounts presented in other current assets	3,545	1,965
Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	0	0
Gross amounts offset in the balance sheet	0	0
Net amounts presented in other current liabilities	0	0
Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	2,074	545
Gross amounts offset in the balance sheet	(124)	(238)
Net amounts presented in other current assets	1,950	307
Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	65	1,330
Gross amounts offset in the balance sheet	0	(71)
Net amounts presented in other current liabilities	$ 65	$ 1,259