SHAREHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2019

Stockholders' Equity Note [Abstract]

Schedule of Number of Reserved and Authorized Shares In Equity Incentive Plans

As of December 31, 2019, the number of Reserved and Authorized Shares under the Equity Incentive Plans is as detailed below:

	2019
Stock options exercised and outstanding		28,286,653
RSUs vested and outstanding		2,741,853
Ordinary shares available for issuance under the Equity Incentive Plans		2,284,461
Total reserved and authorized shares as of December 31, 2019		33,312,967

Summary of Stock Option Activity

A summary of employees and directors option activity under the Company's Stock Option Plans as of December 31, 2019 is as follows:

	Number of options			Weighted-average exercise price		Weighted- average remaining contractual term (in years)		Aggregate intrinsic value
Outstanding at January 1, 2019		4,855,203		$	16.96		3.30	$	29,774
Granted		1,207,866			24.05
Exercised		(1,250,680	)		14.43
Expired		(2,875	)		16.43
Forfeited		(511,235	)		18.24
Outstanding at December 31, 2019		4,298,279		$	19.54		3.12	$	27,514
Exercisable at December 31, 2019		1,185,612		$	15.42		1.91	$	12,361
Vested and expected to vest at December 31, 2019		3,980,155		$	19.27		3.04	$	26,549

Summary of Stock Options Outstanding by Exercise Price Range

The options outstanding under the Company's Stock Option Plans as of December 31, 2019, have been separated into ranges of exercise price as follows:

December 31, 2019
Outstanding								Exercisable
Ranges of exercise price		Number of options		Weighted average remaining contractual life (years)		Weighted average exercise price		Number of options		Weighted Average Exercise price
$	10.04-14.74		1,291,709		1.73	$	13.40		620,850	$	13.31
$	15.09-19.30		905,825		2.43	$	16.78		490,075	$	16.44
$	20.62-27.15		2,100,745		4.28	$	24.51		74,687	$	26.29
			4,298,279						1,185,612

Summary of RSU Activity

The following table summarizes information relating to RSUs, as well as changes to such awards during 2019:

	Year ended December 31, 2019
Outstanding at January 1, 2019		1,077,909
Granted		802,513
Vested		(388,073	)
Forfeited		(125,436	)
Outstanding as of December 31, 2019		1,366,913

Summary of Stock-Based Compensation Expense

Stock-based compensation was recorded in the following items within the consolidated statements of income (loss):

	Year ended December 31,
	2019		2018		2017
Cost of revenues	$	224	$	221	$	241
Research and development, net		2,855		3,123		3,867
Sales and marketing		6,953		7,072		6,894
General and administrative		3,032		2,087		2,029
Total expenses	$	13,064	$	12,503	$	13,031