Accumulated Other Comprehensive Income (Schedule of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	$ 608,737	$ 689,992
Balance end of period	841,101	639,798
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(77,796)	(53,484)
Other comprehensive income (loss) before reclassifications	1,280	7,762
Reclassified from accumulated other comprehensive income	(99)	(1,626)
Balance end of period	(76,615)	(47,348)
Unrealized Gain (Loss) on Investments, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(172)	(126)
Other comprehensive income (loss) before reclassifications	6	(17)
Reclassified from accumulated other comprehensive income	0	0
Balance end of period	(166)	(143)
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	839	4,979
Other comprehensive income (loss) before reclassifications	(209)	2,097
Reclassified from accumulated other comprehensive income	(218)	(1,626)
Balance end of period	412	5,450
Unrealized Gain (Loss) on Cash Flow Hedges, Net of Tax | Interest Rate Swap
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	0
Other comprehensive income (loss) before reclassifications	(45)
Reclassified from accumulated other comprehensive income	0
Balance end of period	(45)
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	4,947	422
Other comprehensive income (loss) before reclassifications	(1,490)	1,409
Reclassified from accumulated other comprehensive income	0	0
Balance end of period	3,457	1,831
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	7,057	3,240
Other comprehensive income (loss) before reclassifications	(1,240)	996
Reclassified from accumulated other comprehensive income	0	0
Balance end of period	5,817	4,236
Defined Benefit Plans, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(2,776)
Other comprehensive income (loss) before reclassifications	0
Reclassified from accumulated other comprehensive income	119
Balance end of period	(2,657)
Cumulative Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(87,691)	(61,999)
Other comprehensive income (loss) before reclassifications	4,258	3,277
Reclassified from accumulated other comprehensive income	0	0
Balance end of period	$ (83,433)	$ (58,722)