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Financial Instruments and Fair Value Measurements (Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)) (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Forward Currency Contracts [Member]
Derivatives designated as cash flow hedges:
Gain (loss) recorded in other comprehensive income (loss)	$ 458	$ 716	$ 304	$ (2,604)
Gain (loss) reclassified from other comprehensive income (loss) into net income	95	(947)	302	(1,103)
Foreign currency cash flow hedge gain (loss) to be reclassified during next 12 months	(257)		(257)
Losses expected to be recognized in interest expense in next year			596
Losses expected to be recognized in interest expense after next year			399
Interest Rate Swap [Member]
Derivatives designated as cash flow hedges:
Gain (loss) recorded in other comprehensive income (loss)	(37)	(245)	2	(1,712)
Gain (loss) reclassified from other comprehensive income (loss) into net income	(163)	(114)	(321)	(118)
Cost of Goods Sold [Member] | Forward Currency Contracts [Member]
Derivatives designated as cash flow hedges:
Gain (loss) reclassified from other comprehensive income (loss) into net income	86	(712)	213	(839)
Design and Development Expense [Member] | Forward Currency Contracts [Member]
Derivatives designated as cash flow hedges:
Gain (loss) reclassified from other comprehensive income (loss) into net income			0	(29)
Selling, General and Administrative Expenses [Member] | Forward Currency Contracts [Member]
Derivatives designated as cash flow hedges:
Gain (loss) reclassified from other comprehensive income (loss) into net income	9	(235)	89	(235)
Interest Expense [Member] | Forward Currency Contracts [Member]
Derivatives designated as cash flow hedges:
Gain (loss) reclassified from other comprehensive income (loss) into net income	$ (163)	$ (114)	$ (321)	$ (118)

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