Derivative Instruments - Balance Sheet Location (Details) - Foreign Exchange Contract [Member] - USD ($) $ in Thousands	Jun. 28, 2015	Dec. 31, 2014
Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	$ 3,842	$ 2,456
Gross amounts offset in the balance sheet	(600)	(670)
Net amounts presented in other current assets	3,242	1,786
Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	590	8,012
Gross amounts offset in the balance sheet	(123)	(3,487)
Net amounts presented in other current liabilities	467	4,525
Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	1,249	0
Gross amounts offset in the balance sheet	(251)	0
Net amounts presented in other current assets	998	0
Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	0	3,283
Gross amounts offset in the balance sheet	0	(865)
Net amounts presented in other current liabilities	0	2,418
Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	2,593	2,456
Gross amounts offset in the balance sheet	(349)	(670)
Net amounts presented in other current assets	2,244	1,786
Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	590	4,729
Gross amounts offset in the balance sheet	(123)	(2,622)
Net amounts presented in other current liabilities	$ 467	$ 2,107