Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Consolidated Statements of Comprehensive Income
Net income	$ 60,781	$ 53,119	$ 88,920	$ 75,948
Other comprehensive income (loss), net of income tax:
Foreign currency translation adjustment	1,468	10,764	(8,892)	(5,105)
Total comprehensive income	62,249	63,883	80,028	70,843
Total comprehensive income (loss) attributable to:
Stockholders	62,215	63,795	80,059	70,743
Non-controlling interests	34	88	(31)	100
Total comprehensive income	$ 62,249	$ 63,883	$ 80,028	$ 70,843