Share-based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Summary of Restricted Stock Awards by Award Type

The below table summarizes activity of unvested restricted stock awards by award type from January 1, 2021 through March 31, 2021. Unvested RSA awards noted below are included in issued and outstanding common stock as of March 31, 2021, while unvested RSUs and PSUs are not included in issued or outstanding common stock as of March 31, 2021.

	RSA			RSU			PSU
	Number of Shares	Weighted-Average Grant Date  Fair Value		Number of Shares	Weighted-Average Grant Date  Fair Value		Number of Shares	Weighted-Average Grant Date  Fair Value
Unvested at January 1, 2021	2,175,859	$	4.78	2,325,273	$	5.90	35,212	$	7.10
Granted	—	—		2,818,085	10.07		—	—
Vested	(222,741)	8.60		(742,001)	5.90		—	—
Forfeited	(35,589)	3.76		(32,856)	5.90		—	—
Unvested at March 31, 2021	1,917,529	$	4.36	4,368,501	$	8.59	35,212	$	7.10

Summary of Stock Options Activity

A summary of stock option activity for the three months ended March 31, 2021 is presented below:

	Number of Shares	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at January 1, 2021	2,025,683	$	4.62
Granted	—	—
Exercised	(352,623)	3.67
Unvested options forfeited	(50,000)	1.23
Vested options expired	—	—
Outstanding at March 31, 2021	1,623,060	4.93		2.16	8,714,632
Exercisable at March 31, 2021	1,623,060	$	4.93	2.16	$	8,714,632