STOCKHOLDERS' EQUITY (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Composition of Common Stock Capital

a.Common Stock:

	Number of shares
	Authorized as of		Issued as of		Outstanding as of
	September 30, 2020	December 31, 2019	September 30, 2020	December 31, 2019	September 30, 2020	December 31, 2019
Stock of $0.0001 par  value:
Common stock	125,000,000	125,000,000	51,207,310	49,081,457	51,207,310	48,898,062

Schedule of Stock Option Activity

A summary of the activity in the stock options granted to employees and members of the board of directors for the nine months ended September 30, 2020 and related information are as follows:

	Number of Options			Weighted average exercise price		Weighted average remaining contractual term in years		Aggregate intrinsic Value
Outstanding as of December 31, 2019		2,112,009			15.44		3.58		168,229
Granted		59,558			101.81
Exercised		(1,434,129	)		10.93
Outstanding as of September 30, 2020		737,438			31.18		5.79		152,776
Vested and expected to vest as of September 30, 2020		728,547			31.01		6.85		151,055
Exercisable as of September 30, 2020		497,011			23.48		6.32		106,792

Schedule of RSU Activity

A summary of the activity in the RSUs granted to employees and directors for the nine months ended September 30, 2020 is as follows:

	Number of RSUs			Weighted average grant date fair value
Unvested as of December 31, 2019		2,742,589			52.77
Granted		606,666			180.66
Vested		(807,986	)		43.34
Forfeited		(166,461	)		65.30
Unvested as of September 30, 2020		2,374,808			87.78

Schedule of Recognized Stock-Based Compensation Expense

The Company recognized stock-based compensation expenses related to stock options, RSUs and PSUs granted to employees and non-employee consultants and ESPP in the condensed consolidated statement of income for the three and nine months ended September 30, 2020 and 2019, as follows:

	Three months ended September 30,				Nine months ended September 30,
	2020		2019		2020		2019
Cost of revenues	$	2,730	$	1,691	$	7,362	$	4,696
Research and development		6,904		4,269		18,129		11,935
Selling and marketing		4,066		2,779		10,703		7,905
General and administrative		2,559		2,628		6,799		7,907
Other operating expenses		-		6,242		-		6,242
Total stock-based compensation expense	$	16,259	$	17,609	$	42,993	$	38,685