CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
NET REVENUES	$ 176,776	$ 121,129	$ 530,623	$ 337,625
COST OF REVENUES	85,037	61,560	263,160	168,040
GROSS PROFIT	91,739	59,569	267,463	169,585
OPERATING EXPENSES:
Research and development	21,137	20,868	62,905	59,790
Sales and marketing	15,624	13,658	45,037	40,168
General and administrative	9,386	10,302	28,767	26,867
Total operating expenses	46,147	44,828	136,709	126,825
INCOME FROM OPERATIONS	45,592	14,741	130,754	42,760
OTHER INCOME	206	877	976	4,134
INCOME BEFORE INCOME TAXES	45,798	15,618	131,730	46,894
PROVISION FOR INCOME TAXES	3,764	798	8,017	2,996
NET INCOME	$ 42,034	$ 14,820	$ 123,713	$ 43,898
EARNINGS PER SHARE:
Basic (in dollars per share)	$ 0.70	$ 0.25	$ 2.05	$ 0.74
Diluted (in dollars per share)	$ 0.69	$ 0.24	$ 2.01	$ 0.72
SHARES USED IN PER SHARE CALCULATION:
Basic (in shares)	60,319	59,823	60,350	59,582
Diluted (in shares)	61,363	60,852	61,466	60,668