Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 9,779	$ 6,305	$ 25,333	$ 17,083
Other comprehensive loss:
Foreign currency translation adjustment	(285)	(363)	(48)	(1,015)
Comprehensive income	$ 9,494	$ 5,942	$ 25,285	$ 16,068