Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Nonvested Restricted Stock Units Activity

The summary of RSU activity is as follows (in thousands, except per share data):

	Number of Units	Weighted-Average Grant Date Fair Value Per Share		Aggregate Intrinsic Value (in thousands)
Balances—December 31, 2022	28,537,127	$	5.75	$	95,599
Granted	12,180,784	$	6.52
Vested	(9,614,245)	$	5.02
Forfeited	(1,761,105)	$	6.08
Balances—September 30, 2023	29,342,561	$	6.28	$	189,260

Summary of Stock-Based Compensation Expense

The following sets forth the total stock-based compensation expense for the Company’s stock awards included in the Company’s condensed consolidated statements of operations (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Research and development expenses	$	21,455	$	9,409	$	54,657	$	37,519
Selling, general and administrative expenses	5,812		3,634		15,090		14,386
Total stock-based compensation expense	$	27,267	$	13,043	$	69,747	$	51,905