Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
NET INCOME	$ 124,264	$ 69,982	$ 55,181
OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
Foreign currency translation adjustments	199	(41)	(100)
Unrealized (loss) gain on investments	(179)	683	(34)
Total other comprehensive income (loss)	20	642	(134)
COMPREHENSIVE INCOME	$ 124,284	$ 70,624	$ 55,047