Stock-Based Compensation - Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Options to purchase common stock
Stock based compensation expense
Options granted (in shares)	266,000
Stock-based compensation expense	$ 152,384	$ 115,219	$ 50,171
Unrecognized compensation expense	$ 265,100
Unrecognized compensation expense, weighted average period of recognition	2 years 7 months 6 days
Options to purchase common stock | Cost of revenues
Stock based compensation expense
Stock-based compensation expense	$ 7,905	4,811	1,691
Options to purchase common stock | Research and development
Stock based compensation expense
Stock-based compensation expense	46,545	25,868	11,424
Options to purchase common stock | Selling, general and administrative
Stock based compensation expense
Stock-based compensation expense	97,934	84,540	37,056
Employee stock options
Stock based compensation expense
Stock-based compensation expense	149,939	113,686	49,215
Employee stock options | Cost of revenues
Stock based compensation expense
Stock-based compensation expense	7,905	4,811	1,691
Employee stock options | Research and development
Stock based compensation expense
Stock-based compensation expense	44,655	24,507	10,777
Employee stock options | Selling, general and administrative
Stock based compensation expense
Stock-based compensation expense	$ 97,379	84,368	36,747
Non-employee stock options
Stock based compensation expense
Options granted (in shares)	2,860
Stock-based compensation expense	$ 2,445	1,533	956
Non-employee stock options | Research and development
Stock based compensation expense
Stock-based compensation expense	1,890	1,361	647
Non-employee stock options | Selling, general and administrative
Stock based compensation expense
Stock-based compensation expense	$ 555	$ 172	$ 309