Derivative Financial Instruments - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	$ 105	$ 169	$ (39)	$ 486
Foreign exchange derivative | Net sales | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	(194)	(35)	(253)	(125)
Foreign exchange derivative | Cost of goods sold | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	268	51	182	139
Foreign exchange derivative | Selling, general and administrative expenses | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	21	0	31	10
Foreign exchange derivative | Other income and expenses | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	(2)	(5)	(11)	(9)
Interest rate swap | Interest expense | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	$ 12	$ 158	$ 12	$ 471