CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
NET REVENUES		$ 121,129	$ 114,159	$ 337,625	$ 306,212
COST OF REVENUES		61,560	56,028	168,040	151,035
GROSS PROFIT		59,569	58,131	169,585	155,177
OPERATING EXPENSES:
Research and development		20,868	17,957	59,790	55,172
Sales and marketing		13,658	13,452	40,168	39,678
General and administrative		10,302	9,224	26,867	26,948
Total operating expenses		44,828	40,633	126,825	121,798
INCOME FROM OPERATIONS		14,741	17,498	42,760	33,379
OTHER INCOME		877	1,078	4,134	3,540
INCOME BEFORE INCOME TAXES		15,618	18,576	46,894	36,919
PROVISION FOR INCOME TAXES		798	1,477	2,996	1,742
NET INCOME		$ 14,820	$ 17,099	$ 43,898	$ 35,177
EARNINGS PER SHARE:
Basic (in dollars per share)	[1]	$ 0.25	$ 0.29	$ 0.74	$ 0.60
Diluted (in dollars per share)	[1],[2]	$ 0.24	$ 0.29	$ 0.72	$ 0.59
SHARES USED IN PER SHARE CALCULATION:
Basic (in shares)	[1]	59,823	58,770	59,582	58,426
Diluted (in shares)	[1]	60,852	59,732	60,668	59,418

[1] The Earnings Per Share and Shares Used in Per Share Calculation information presented above reflects the effect of the August 2020 stock split. Refer to Note 9, Earnings Per Share, in this Form 10-Q for details.

[2] The Company includes the shares underlying performance-based awards in the calculation of diluted earnings per share if the performance conditions have been satisfied as of the end of the reporting period and excludes such shares when the necessary conditions have not been met. The Company has excluded the shares underlying the outstanding performance-based awards in the 2020 and 2019 calculations as the shares were not contingently issuable as of the end of the reporting periods.