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, 2020	Sep. 30, 2019	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Forward Currency Contracts [Member]
Derivatives designated as cash flow hedges:
Gain (loss) recorded in other comprehensive income (loss)	$ 716	$ 157		$ (2,604)	$ 426
Gain (loss) reclassified from other comprehensive income (loss) into net income	(947)	$ 299		(1,103)	515
Foreign currency cash flow hedge gain (loss) to be reclassified during next 12 months	(1,501)			(1,501)
Losses expected to be recognized in interest expense in next year	594
Losses expected to be recognized in interest expense after next year	1,000
Interest Rate Swap [Member]
Derivatives designated as cash flow hedges:
Gain (loss) recorded in other comprehensive income (loss)	(245)			(1,712)
Gain (loss) reclassified from other comprehensive income (loss) into net income	(114)			(118)
Cost of Goods Sold [Member]
Derivatives designated as cash flow hedges:
Gain (loss) reclassified from other comprehensive income (loss) into net income				(839)	390
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	(712)		$ 217
Design and Development Expense [Member]
Derivatives designated as cash flow hedges:
Gain (loss) reclassified from other comprehensive income (loss) into net income				(29)	125
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		82
Selling, General and Administrative Expenses [Member]
Derivatives designated as cash flow hedges:
Gain (loss) reclassified from other comprehensive income (loss) into net income				(235)	$ 0
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	(235)		$ 0
Interest Expense [Member]
Derivatives designated as cash flow hedges:
Gain (loss) reclassified from other comprehensive income (loss) into net income				$ 118
Interest Expense [Member] | Forward Currency Contracts [Member]
Derivatives designated as cash flow hedges:
Gain (loss) reclassified from other comprehensive income (loss) into net income	$ 114