CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
NET REVENUES	$ 182,149	$ 173,737
COST OF REVENUES	81,474	89,326
GROSS PROFIT	100,675	84,411
OPERATING EXPENSES:
Research and development	23,678	20,027
Sales and marketing	16,336	14,123
General and administrative	9,614	10,075
Total operating expenses	49,628	44,225
INCOME FROM OPERATIONS	51,047	40,186
OTHER INCOME	554	597
INCOME BEFORE INCOME TAXES	51,601	40,783
PROVISION FOR INCOME TAXES	5,353	985
NET INCOME	$ 46,248	$ 39,798
EARNINGS PER SHARE:
Basic (in dollars per share)	$ 0.78	$ 0.66
Diluted (in dollars per share)	$ 0.77	$ 0.65
SHARES USED IN PER SHARE CALCULATION:
Basic (in shares)	59,238	60,184
Diluted (in shares)	60,107	61,451