Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 90,596	$ 182,596
Current period other comprehensive income (loss) before reclassifications	(375)	108
Amounts reclassified from accumulated other comprehensive loss		(65)
Net other comprehensive income (loss) during period	(375)	43
Ending balance	92,925	173,631
Unrealized (Loss) Gain on Available-for-Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	0	(6)
Current period other comprehensive income (loss) before reclassifications	0	15
Amounts reclassified from accumulated other comprehensive loss		0
Net other comprehensive income (loss) during period	0	15
Ending balance	0	9
Gain (Loss) on Derivative Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	0	223
Current period other comprehensive income (loss) before reclassifications	0	(35)
Amounts reclassified from accumulated other comprehensive loss		(65)
Net other comprehensive income (loss) during period	0	(100)
Ending balance	0	123
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(937)	(1,126)
Current period other comprehensive income (loss) before reclassifications	(375)	128
Amounts reclassified from accumulated other comprehensive loss		0
Net other comprehensive income (loss) during period	(375)	128
Ending balance	(1,312)	(998)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(937)	(909)
Ending balance	$ (1,312)	$ (866)