STOCKHOLDERS' EQUITY (Tables)

3 Months Ended

Mar. 31, 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
	March 31, 2020		December 31, 2019		March 31, 2020		December 31, 2019		March 31, 2020		December 31, 2019
Stock of $0.0001 par value:
Common stock		125,000,000		125,000,000		49,599,493		49,081,457		49,599,493		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 three months ended March 31, 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		(428,300	)		7.72
Forfeited or expired		-			-
Outstanding as of March 31, 2020		1,743,267			20.28		3.76		108,568
Vested and expected to vest as of March 31, 2020		2,143,613			17.51		5.64		139,067
Exercisable as of March 31, 2020		1,406,616			15.04		2.69		94,018

Schedule of RSU Activity

A summary of the activity in the RSUs granted to employees and directors for the three months ended March 31, 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		61,524			101.87
Vested		(268,648	)		38.96
Forfeited		(58,611	)		54.27
Unvested as of March 31, 2020		2,476,854			55.45

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 months ended March 31, 2020 and 2019, as follows:

	Three months ended March 31,
	2020		2019
Cost of revenues	$	2,273	$	1,354
Research and development		5,378		3,490
Selling and marketing		3,192		2,404
General and administrative		1,930		2,456
Total stock-based compensation expense	$	12,773	$	9,704