CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
NET REVENUES	$ 173,737	$ 109,664
COST OF REVENUES	89,326	53,184
GROSS PROFIT	84,411	56,480
OPERATING EXPENSES:
Research and development	20,027	19,152
Sales and marketing	14,123	13,473
General and administrative	10,075	8,761
Total operating expenses	44,225	41,386
INCOME FROM OPERATIONS	40,186	15,094
OTHER INCOME	597	1,777
INCOME BEFORE INCOME TAXES	40,783	16,871
PROVISION FOR INCOME TAXES	985	985
NET INCOME	$ 39,798	$ 15,886
EARNINGS PER SHARE:
Basic (in dollars per share)	$ 0.66	$ 0.27
Diluted (in dollars per share)	$ 0.65	$ 0.26
SHARES USED IN PER SHARE CALCULATION:
Basic (in shares)	60,184	59,204
Diluted (in shares)	61,451	60,268