Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 7,068	$ 15,189	$ 9,836
Foreign currency translation adjustments	1,412	1,955	(6,914)
Change in fair value of interest rate cap, net of tax	0	0	142
Change in fair value of interest rate swap, net of tax	0	0	(63)
Comprehensive income	$ 8,480	$ 17,144	$ 3,001