Shareholders' Equity Gains and Losses, Net of Tax Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Location of Gain (Loss) Reclassified from Accumulated OCI into Income	$ (3,850)	$ (5,469)
Foreign currency contracts | Other expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Location of Gain (Loss) Reclassified from Accumulated OCI into Income	(8,399)	(5,641)
Foreign currency contracts | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Location of Gain (Loss) Reclassified from Accumulated OCI into Income	$ 4,549	$ 172