Stockholders' Equity - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		$ 36,266
Other comprehensive loss	$ 879	(5,156)	$ (950)	$ (385)
Reclassification adjustment to net loss	(349)	393	344	49
Tax effects	(169)	1,053	210	229
Ending balance	61,552		49,189
Foreign Currency
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(12,074)	(8,221)	(8,423)	(8,652)
Other comprehensive loss	742	(4,985)	248	246
Reclassification adjustment to net loss	0	0	0	0
Tax effects	(223)	1,132	(13)	(17)
Ending balance	(11,555)	(12,074)	(8,188)	(8,423)
Deferred Gain (Loss) on Cash Flow Hedging
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(393)	(341)	459	879
Other comprehensive loss	137	(171)	(1,198)	(631)
Reclassification adjustment to net loss	(489)	154	202	4
Tax effects	97	(35)	263	207
Ending balance	(648)	(393)	(274)	459
Pension Plan Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(7,375)	(7,570)	(9,244)	(9,328)
Other comprehensive loss	0	0	0	0
Reclassification adjustment to net loss	140	239	142	45
Tax effects	(43)	(44)	(40)	39
Ending balance	(7,278)	(7,375)	(9,142)	(9,244)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(19,842)	(16,132)	(17,208)	(17,101)
Ending balance	$ (19,481)	$ (19,842)	$ (17,604)	$ (17,208)