CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 21,935	$ 21,383	$ 40,412	$ 42,133
Other comprehensive income, net of tax:
Foreign currency translation	2		(2)	1
Unrealized gains on investment securities	27	102	76	228
Other comprehensive income	29	102	74	229
Comprehensive income	$ 21,964	$ 21,485	$ 40,486	$ 42,362