Stock-Based Employee Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Share-Based Payment Arrangement [Abstract]

Weighted Average Assumptions Used to Calculate Fair Value of Stock Option

The following table summarizes the weighted-average assumptions used in estimating the fair value of ESPP for the offering period beginning on February 1, 2022, using the Black-Scholes option-pricing model:
 

	Three months ended
	June 30, 2022
Expected term (in years)		0.5
Expected volatility		68.0	%
Risk-free interest rate		1.63	%
Expected dividend yield		0	%

Summary of Stock Option Activity

The following table summarizes the stock option activity for the six months ended June 30, 2022 (in thousands, except for share and per share amounts):
 

	Number of Options			Weighted- Average Exercise Price Per Share		Intrinsic Value		Weighted- Average Remaining Contractual Term (in years)
Outstanding, December 31, 2021		8,786,724		$	2.72	$	141,659		7.03
Granted		-			-
Exercised		(441,422	)		1.72
Forfeited		(150,790	)		5.46
Expired		(33,613	)		5.14
Outstanding, June 30, 2022		8,160,899		$	2.71	$	32,083		6.53
Exercisable, June 30, 2022		6,100,126		$	1.85	$	28,921		6.01
Expected to vest, June 30, 2022		2,060,773		$	5.26	$	3,162		8.07

Summary of restricted stock unit activity

The following table summarizes the restricted stock unit activity for the six months ended June 30, 2022 (in thousands, except for share and per share amounts):

	Number of RSUs			Weighted- Average Grant-Date Fair Value
Outstanding, December 31, 2021		3,705,206		$	20.76
Granted		2,043,027			12.16
Vested		(430,221	)		21.02
Forfeited		(281,268	)		19.49
Outstanding, June 30, 2022		5,036,744		$	17.34