Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income	$ 30,047	$ 22,943	$ 20,518
Other comprehensive income (loss):
Other comprehensive income, foreign currency translation adjustment	(1,281)	991	369
Other comprehensive income (loss)	(1,281)	991	369
Comprehensive income	$ 28,766	$ 23,934	$ 20,887