STOCKHOLDERS' EQUITY (Tables)

6 Months Ended

Jun. 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
	June 30, 2020	December 31, 2019	June 30, 2020	December 31, 2019	June 30, 2020	December 31, 2019
Stock of $0.0001 par value:
Common stock	125,000,000	125,000,000	50,075,751	49,081,457	50,075,751	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 six months ended June 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		(568,165	)		9.84
Outstanding as of June 30, 2020		1,603,402			20.63		3.36		189,447
Vested and expected to vest as of June 30, 2020		1,597,973			20.43		5.88		189,113
Exercisable as of June 30, 2020		1,314,860			15.45		2.32		162,166

Schedule of RSU Activity

A summary of the activity in the RSUs granted to employees and directors for the six months ended June 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		153,481			88.41
Vested		(547,706	)		41.92
Forfeited		(107,688	)		54.76
Unvested as of June 30, 2020		2,240,676			57.77

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 six months ended June 30, 2020 and 2019, as follows:

	Three months ended June 30,				Six months ended June 30,
	2020		2019		2020		2019
Cost of revenues	$	2,359	$	1,651	$	4,632	$	3,005
Research and development		5,847		4,176		11,225		7,666
Selling and marketing		3,445		2,722		6,637		5,126
General and administrative		2,310		2,823		4,240		5,279
Total stock-based compensation expense	$	13,961	$	11,372	$	26,734	$	21,076