Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
NET INCOME	$ 39,940	$ 18,234	$ 97,213	$ 42,466
OTHER COMPREHENSIVE (LOSS) INCOME, net of tax:
Foreign currency translation adjustments	123	(113)	128	(130)
Unrealized (loss) gain on investments	(461)	44	131	814
Total other comprehensive (loss) income	(338)	(69)	259	684
COMPREHENSIVE INCOME	$ 39,602	$ 18,165	$ 97,472	$ 43,150