Organization - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		44 Months Ended
	Feb. 28, 2021	Sep. 30, 2022	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Aug. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Description Of Organization [Line Items]
Net proceeds from issuance of common stock				$ 724,000
Proceeds from public offering of common stock, net of offering costs					$ 626,405,000
Accumulated deficit		$ 974,393,000		974,393,000		$ 974,393,000		$ 785,360,000
Cash, cash equivalents and marketable securities		$ 511,600,000		511,600,000		511,600,000
Success payment liabilities				(66,815,000)	57,698,000	33,300,000
Contingent consideration				(12,613,000)	$ 10,080,000	$ 89,900,000
Convertible Preferred Stock
Description Of Organization [Line Items]
Outstanding convertible preferred stock (in shares)									134,113
Common Stock
Description Of Organization [Line Items]
Conversion of preferred stock into common stock (in shares)			134,113
At The Market Offering | Common Stock
Description Of Organization [Line Items]
Issuance of common stock, net of offering costs (in shares)		149
IPO
Description Of Organization [Line Items]
Outstanding convertible preferred stock (in shares)	134,100
IPO | Convertible Preferred Stock
Description Of Organization [Line Items]
Conversion of preferred stock into common stock (in shares)	134,100
Carrying value of converted preferred stock	$ 852,900,000
IPO | Common Stock
Description Of Organization [Line Items]
Issuance of common stock, net of offering costs (in shares)	27,000		27,025
Common stock price per share	$ 25.00
Proceeds from public offering of common stock, net of offering costs	$ 626,400,000
Payments of underwriting discounts and commissions	45,200,000
Offering expenses	$ 4,000,000.0
Underwriters' Option To Purchase Additional Shares | Common Stock
Description Of Organization [Line Items]
Issuance of common stock, net of offering costs (in shares)	3,500
Cowen | At The Market Offering
Description Of Organization [Line Items]
Common stock maximum aggregate offering price							$ 150,000,000.0
Net proceeds from issuance of common stock				$ 700,000