Accumulated Other Comprehensive Income (Schedule of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	$ (9,233)	$ (53,842)
Other comprehensive (loss) income before reclassifications	3,770	(6,110)
Losses (gains) reclassified from accumulated other comprehensive income	(8,161)	789
Balance end of period	177,825	(9,233)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(41,791)	(36,470)
Balance end of period	(46,182)	(41,791)
Unrealized (Loss) Gain on Investments, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(157)	(22)
Other comprehensive (loss) income before reclassifications	267	(135)
Losses (gains) reclassified from accumulated other comprehensive income	0	0
Balance end of period	110	(157)
Unrealized (Loss) Gain on Cash Flow Hedges, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	6,229	(5,219)
Other comprehensive (loss) income before reclassifications	1,196	10,659
Losses (gains) reclassified from accumulated other comprehensive income	(8,161)	789
Balance end of period	(736)	6,229
Unrealized (Loss) Gain on Net Investment Hedges, Net of Tax, Euro-Denominated Notes
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(394)	(4,311)
Other comprehensive (loss) income before reclassifications	1,790	3,917
Losses (gains) reclassified from accumulated other comprehensive income	0	0
Balance end of period	1,396	(394)
Unrealized (Loss) Gain on Net Investment Hedges, Net of Tax, Cross Currency Swaps
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	1,360	0
Other comprehensive (loss) income before reclassifications	2,107	1,360
Losses (gains) reclassified from accumulated other comprehensive income	0	0
Balance end of period	3,467	1,360
Cumulative Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(48,829)	(26,918)
Other comprehensive (loss) income before reclassifications	(1,590)	(21,911)
Losses (gains) reclassified from accumulated other comprehensive income	0	0
Balance end of period	$ (50,419)	$ (48,829)