Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Comprehensive Income (Loss), before Tax [Abstract]
Foreign currency translation adjustment	$ (87)	$ 86	$ (24)	$ 181
Reclassification of net losses on derivative instruments	153	154	306	307
Total Other Comprehensive (Loss) Income	66	240	282	488
Other Comprehensive Income (Loss), Tax [Abstract]
Foreign currency translation adjustment	0	0	0	0
Reclassification of net losses on derivative instruments	(40)	(41)	(81)	(81)
Total Other Comprehensive (Loss) Income	(40)	(41)	(81)	(81)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(87)	86	(24)	181
Reclassification of net losses on derivative instruments	113	113	225	226
Total Other Comprehensive Income	$ 26	$ 199	$ 201	$ 407

Amount before tax, after reclassification adjustments of other comprehensive income (loss).

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