Accumulated Other Comprehensive Income (Schedule of AOCI) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	$ 689,992	$ 632,795
Other comprehensive income (loss) before reclassifications	(8,651)	955
Reclassified from accumulated other comprehensive income	(5,570)	4,269
Balance end of period	457,008	748,223
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(53,484)	(53,615)
Balance end of period	(67,705)	(48,391)
Unrealized Gain (Loss) on Investments, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(126)	(272)
Other comprehensive income (loss) before reclassifications	(42)	154
Reclassified from accumulated other comprehensive income	0	0
Balance end of period	(168)	(118)
Unrealized Gain (Loss) on Cash Flow Hedges, Net of Tax, Foreign Currency Exchange Contracts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	4,979	(9,934)
Other comprehensive income (loss) before reclassifications	13,440	3,191
Reclassified from accumulated other comprehensive income	(5,830)	4,269
Balance end of period	12,589	(2,474)
Unrealized Gain (Loss) on Net Investment Hedges, Net of Tax, Euro-Denominated Notes
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	422	(5,982)
Other comprehensive income (loss) before reclassifications	5,533	2,654
Reclassified from accumulated other comprehensive income	0	0
Balance end of period	5,955	(3,328)
Unrealized Gain (Loss) on Net Investment Hedges, Net of Tax, Cross Currency Swaps
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	3,240	(2,159)
Other comprehensive income (loss) before reclassifications	5,278	2,202
Reclassified from accumulated other comprehensive income	0	0
Balance end of period	8,518	43
Benefit Plans, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	0	0
Other comprehensive income (loss) before reclassifications	(5,056)	0
Reclassified from accumulated other comprehensive income	260	0
Balance end of period	(4,796)	0
Cumulative Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(61,999)	(35,268)
Other comprehensive income (loss) before reclassifications	(27,804)	(7,246)
Reclassified from accumulated other comprehensive income	0	0
Balance end of period	$ (89,803)	$ (42,514)