Derivative Instruments - Balance Sheet Location (Details) (Foreign Exchange Contract [Member], USD $) In Thousands, unless otherwise specified	Mar. 29, 2015	Dec. 31, 2014
Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	$ 2,306	$ 2,456
Gross amounts offset in the balance sheet	(1,161)	(670)
Net amounts presented in other current assets	1,145	1,786
Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	2,759	8,012
Gross amounts offset in the balance sheet	(1,061)	(3,487)
Net amounts presented in other current liabilities	1,698	4,525
Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	895	0
Gross amounts offset in the balance sheet	(105)	0
Net amounts presented in other current assets	790	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	1,411	2,456
Gross amounts offset in the balance sheet	(1,056)	(670)
Net amounts presented in other current assets	355	1,786
Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	2,759	4,729
Gross amounts offset in the balance sheet	(1,061)	(2,622)
Net amounts presented in other current liabilities	$ 1,698	$ 2,107