Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2021

Employee Benefit Plans

Assumptions made for the purpose of estimating fair value

	June 30,	June 30,
	2021	2020
Expected term of options (years)	5	6
Risk free interest rate	0.61% - 1.04%	0.45% - 1.37%
Volatility	72.46% - 73.69%	64.19% - 64.80%

Schedule of Share-based Compensation, Stock Options, Activity

A summary of stock option activity for the six months ended June 30, 2021 is as follows (in thousands except share amounts):

				Weighted
		Weighted		Average
		Average		Remaining	Aggregate
		Exercise		Contractual	Intrinsic
	Shares	Price		Terms	Value
Options outstanding at December 31, 2020	10,284,498	$	5.78	7.8	$	289,316
Granted	698,500		46.82	—		—
Exercised	(1,812,099)		2.65	—		—
Forfeited	(5,833)		6.78	—		—
Expired	—		—	—		—
Options outstanding at June 30, 2021	9,165,066	$	9.51	7.9	$	226,164
Options exercisable at June 30, 2021	2,523,341		2.17	5.6		80,808

Options unvested at June 30, 2021 6,641,725 $ 12.30 8.7 $ 145,356

Nonvested Restricted Stock Shares Activity

A summary of restricted stock activity for the year ended June 30, 2021 is as follows (in thousands except share amounts):

		Aggregate
		Intrinsic
	Shares	Value
Unvested restricted stock at December 31, 2020	5,874,642	$	—
Granted	653,000		—
Vested	(149,650)		—
Forfeited	(5,833)		—
Unvested restricted stock at June 30, 2021	6,372,159	$	217,864