Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2022

Stockholders' Equity Note [Abstract]

Share-based Compensation, Stock Options, Activity

A summary of employees’ stock options activities during the three months ended March 31, 2022 is as follows:

 

	Three Months Ended March 31, 2022 (unaudited)
	Number	Weighted average exercise price		Aggregate intrinsic value (in thousands)		Weighted average remaining contractual life (years)
Options outstanding as of January 1, 2022	803,870	$	7.077	$	33,524	2.747
Granted	—	$	—
Exercised	(3,208)	$	7.123
Forfeited and expired	—	$	—
Options outstanding as of March 31, 2022	800,662	$	7.077	$	32,397	2.501
Options exercisable as of March 31, 2022	786,922	$	7.101	$	31,822	2.407

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The options outstanding as of March 31, 2022 (unaudited) have been separated into ranges of exercise price as follows:

Range of exercise price				Options outstanding as of March 31, 2022	Weighted average remaining contractual life (years)	Weighted average exercise price of options outstanding		Options exercisable as of March 31, 2022	Weighted average remaining contractual life (years)	Weighted average exercise price of options exercisable
$	4.157	—	5.682	224,661	2.712	$	4.883	210,921	2.377	$	4.821
$	6.503	—	8.077	430,099	2.311	$	7.111	430,099	2.311	$	7.111
		$9.960		120,180	2.896	$	9.960	120,180	2.896	$	9.960
		$13.287		25,722	1.975	$	13.287	25,722	1.975	$	13.287
				800,662	2.501	$	7.077	786,922	2.407	$	7.101

Schedule of Stockholders' Equity Note, Warrants or Rights

The Company’s outstanding options granted to consultants for services as of March 31, 2022 (unaudited) were as follows:

 

	Number of options outstanding and exercisable as of March 31, 2022	Exercise price per share		Exercisable through
August 2013	4,500	$	7.047	August 2023
March 2014	4,650	$	13.287	March 2024
May 2014	3,000	$	7.337	May 2024
November 2014	7,500	$	7.220	November 2024
February 2016	3,000	$	5.623	February 2026
	22,650

Schedule of Share-based Payment Arrangement, Restricted Stock Unit and Performance Stock Unit Activity

A summary of RSUs and PSUs for employees, consultants and non-employee directors of the Company for the three months ended March 31, 2022 (unaudited) is as follows:

 

	Number of shares underlying outstanding RSUs and PSUs	Weighted- average grant date fair value
Unvested balance - January 1, 2022	7,726,125	$	42.53
Granted	3,366,541	$	43.20
Vested	(2,548,923)	$	32.66
Forfeited	(172,193)	$	46.28
Unvested balance – March 31, 2022	8,371,550	$	45.73

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The Company recognized stock-based compensation expense in the consolidated statements of operations as follows (in thousands):

 

	Three Months Ended March 31,
	2022		2021
	(unaudited)
Cost of revenues	$	3,087	$	1,589
Research and development	12,600		7,158
Sales and marketing	13,096		7,742
General and administrative	7,215		4,890
Total	$	35,998	$	21,379