Organization, Basis of Presentation and Summary of Significant Accounting Policies - The following table provides a reconciliation of all liabilities measured at fair value using Level 3 significant unobservable inputs (in thousands) - (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Reclass Takeda Warrant into equity	$ (100,020)
Warrant Liabilities
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Balance at December 31, 2021	56,445
Change in fair value	43,575
Reclass Takeda Warrant into equity	100,020
Convertible Promissory Notes
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Balance at December 31, 2021	158,276
Change in fair value	51,469
Conversion of August 2021 Notes into common shares upon IPO (excluding accrued interest of $5,619)	$ (209,745)