Stock-Based Compensation (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2021

Dec. 31, 2020

Stock-Based Compensation

Schedule of stock-based compensation expense

	Three months ended
	March 31,
	2021		2020
Secondary market transaction	$	1,933	$	—
Employee earnout restricted stock		12,373		—
Employee awards		2,529		672
Total operating expenses	$	16,835	$	672

	2020
	(as restated)		2019
Secondary market transaction	$	1,616	$	33,232
Employee awards		9,680		2,740
Total operating expenses	$	11,296	$	35,972

Schedule of stock option activity

				Weighted-
		Weighted-		Average
	Number of	Average		Remaining	Aggregate
	Options	Exercise		Contractual	Intrinsic
	Outstanding	Price		Life (Years)	Value
Balances as of January 1, 2020	7,428,682	$	2.21	7.3		277
Options granted	2,202,417		4.23
Options exercised	(439,754)		2.02
Options forfeited	(323,840)		2.36
Options canceled or expired	(2,452,894)		2.41
Balances as of December 31, 2020	6,414,611	$	2.85	7.8	$	73,260
Exercisable at December 31, 2020	3,472,595	$	2.30	7.0	$	73,260

Schedule of fair value of assumptions

	2020	2019
Risk-free interest rate	0.3 – 0.6  %	1.6 – 1.9  %
Expected term (years)	5 – 6	3 – 6
Dividend yield	—	—
Volatility	59 – 60  %	46 – 51  %

Schedule of restricted stock activity

	Number of	Weighted
	Restricted	Average
	Stock Units	Fair Value
Balances as of January 1, 2020	—	$	—
Granted	2,450,718		3.69
Canceled	(35,578)		3.44
Balances as of December 31, 2020	2,415,140	$	3.64

Summary of the activity of restricted stock awards

	Number of
	Restricted
	Stock Awards
Balances as of January 1, 2020	472,141
Shares granted	—
Shares vested	(305,379)
Shares forfeited	—
Balances as of December 31, 2020	166,762