Stockholder's Equity Schedule of AOCI (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
AOCI Attributable to Parent [Roll Forward]
Beginning balance		$ 155,761	$ 102,431	$ 99,515	$ 105,665
Net other comprehensive (loss) income	[1]	(1,109)	(751)	10,133	(2,135)
Ending balance		151,667	101,730	151,667	101,730
Foreign Currency Translation
AOCI Attributable to Parent [Roll Forward]
Beginning balance		(3,489)	(12,669)	(14,720)	(11,247)
Other comprehensive loss before reclassifications		(1,109)	(763)	(1,361)	(2,185)
Reclassified from AOCI		0	0	11,483	0
Net other comprehensive (loss) income		(1,109)	(763)	10,122	(2,185)
Ending balance		(4,598)	(13,432)	(4,598)	(13,432)
Unrealized Gain (Loss) on Available for Sale Marketable Securities
AOCI Attributable to Parent [Roll Forward]
Beginning balance		0	0	0	(1)
Other comprehensive loss before reclassifications		0	0	0	1
Reclassified from AOCI		0	0	0	0
Net other comprehensive (loss) income		0	0	0	1
Ending balance		0	0	0	0
Interest Rate Swaps
AOCI Attributable to Parent [Roll Forward]
Beginning balance		0	(32)	(11)	(69)
Other comprehensive loss before reclassifications		0	0	3	11
Reclassified from AOCI		0	12	8	38
Net other comprehensive (loss) income		0	12	11	49
Ending balance		0	(20)	0	(20)
Total Accumulated Other Comprehensive Loss
AOCI Attributable to Parent [Roll Forward]
Beginning balance		(3,489)	(12,701)	(14,731)	(11,317)
Other comprehensive loss before reclassifications		(1,109)	(763)	(1,358)	(2,173)
Reclassified from AOCI		0	12	11,491	38
Net other comprehensive (loss) income		(1,109)	(751)	10,133	(2,135)
Ending balance		$ (4,598)	$ (13,452)	$ (4,598)	$ (13,452)

[1] Tax impact was nominal for all periods.