Shareholders' Equity Gains and Losses, Net of Tax Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from Accumulated OCI Into Income	$ 8	$ (2)	$ 392	$ (2,039)
Foreign Exchange Contract | Other expense (income), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from Accumulated OCI Into Income	1,134	206	3,536	(1,891)
Foreign Exchange Contract | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from Accumulated OCI Into Income	$ (1,126)	$ (208)	$ (3,144)	$ (148)