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Fair Value of Financial Instruments (Foreign Currency Forward Contracts) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Derivative [Line Items]
Net sales	$ 238,263	$ 212,820	$ 456,641	$ 414,884
Cost of sales	107,073	96,549	204,013	189,056
Other Comprehensive Income (Loss), before Reclassifications, before Tax	126	4,662	1,864	5,492
Other Comprehensive Income (Loss), Tax	30	1,126	450	1,327
Other comprehensive income (loss) before reclassifications	96	3,536	1,414	4,165
Foreign Currency Transaction Gain (Loss), before Tax	67	(585)	(161)	(712)
Derivative Assets and Liabilities at Fair Value [Abstract]
Asset Fair Value	4,187		4,187		$ 5,836
Liabilities Fair Value	(876)		(876)		(648)
Net Fair Value	3,311		3,311		5,188
Foreign Currency Forward Contracts
Derivative [Line Items]
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	(312)	438	(493)	350
Derivatives designated as hedged instruments: \| Foreign Currency Forward Contracts
Derivative Assets and Liabilities at Fair Value [Abstract]
Asset Fair Value	4,175		4,175
Liabilities Fair Value	(756)		(756)
Net Fair Value	3,419		3,419
Derivatives designated as hedged instruments: \| Foreign Currency Forward Contracts \| Prepaids and other current assets
Derivative Assets and Liabilities at Fair Value [Abstract]
Asset Fair Value	3,766		3,766		5,817
Liabilities Fair Value	(441)		(441)		(431)
Net Fair Value	3,325		3,325		5,386
Derivatives designated as hedged instruments: \| Foreign Currency Forward Contracts \| Other long-term assets
Derivative Assets and Liabilities at Fair Value [Abstract]
Asset Fair Value	409		409
Liabilities Fair Value	(315)		(315)
Net Fair Value	94		94
Derivatives not designated as hedging instruments: \| Foreign Currency Forward Contracts
Derivative [Line Items]
Notional amount of cash flow hedges	39,762		39,762		39,631
Derivatives not designated as hedging instruments: \| Foreign Currency Forward Contracts \| Prepaids and other current assets
Derivative Assets and Liabilities at Fair Value [Abstract]
Asset Fair Value	12		12		19
Liabilities Fair Value	(120)		(120)		(217)
Net Fair Value	(108)		$ (108)		(198)
Cash flow hedge \| Foreign Currency Forward Contracts
Derivative [Line Items]
Maximum Length of Time Hedged in Cash Flow Hedge			2 years
Notional amount of cash flow hedges	153,454		$ 153,454		$ 155,313
Cash flow hedges realized gains (losses)	2,234	(383)	3,832	(1,645)
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	1,694	(291)	2,906	(1,248)
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	2,500		$ 2,500
Derivatives not designated as hedging instruments: \| Foreign Currency Forward Contracts
Derivative [Line Items]
Maximum Length of Time Hedged in Cash Flow Hedge			1 month
Cash Flow Hedging Gain (Loss)
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	540	(92)	$ 926	(397)
Revenues \| Cash flow hedge \| Foreign Currency Forward Contracts
Derivative [Line Items]
Cash flow hedges realized gains (losses)	2,096	(415)	3,593	(1,828)
Cost of Sales \| Cash flow hedge \| Foreign Currency Forward Contracts
Derivative [Line Items]
Cash flow hedges realized gains (losses)	$ 138	$ 32	$ 239	$ 183