Organization and Description of Business (Details)	1 Months Ended		12 Months Ended
	Oct. 31, 2021 USD ($)	Jun. 30, 2021 USD ($) shares	Dec. 31, 2021 USD ($)	Dec. 31, 2021 £ / shares	Oct. 04, 2021 USD ($)	Jun. 30, 2021 £ / shares shares	Jun. 30, 2021 $ / shares shares	Dec. 31, 2020 USD ($)	Dec. 31, 2020 £ / shares
Subsidiary, Sale of Stock [Line Items]
Number of ordinary shares per American Depositary Shares (ADSs) (in shares) | shares						1	1
Common stock, nominal value (in pound sterling per share) | £ / shares				£ 0.002		£ 0.002			£ 0.002
Aggregate net proceeds in connection with the IPO and subsequent exercise of the underwriter's options		$ 344,100,000
Accumulated deficit			$ 385,653,000
Cash and cash equivalents			$ 595,082,000					$ 7,227,000
Sufficient funding term (at least)			12 months
Oberland Capital
Subsidiary, Sale of Stock [Line Items]
Note purchase agreement, value	$ 300,000,000				$ 75,000,000
Note purchase agreement, amount available for funding at the option of the Company	$ 125,000,000
Note purchase agreement, term for available funding	24 months
Note purchase agreement, amount available for funding at the option of the Company and Oberland Capital	$ 100,000,000
Oberland Capital | Senior Notes
Subsidiary, Sale of Stock [Line Items]
Debt instrument, term	6 years
Oberland Capital | Interest Only, Senior Secured Notes | Senior Notes
Subsidiary, Sale of Stock [Line Items]
Debt instrument, term	6 years
Stated interest rate	8.00%
IPO
Subsidiary, Sale of Stock [Line Items]
Shares sold in offering (in shares) | shares		16,500,000
Share price (in dollars per share) | $ / shares							$ 20.00
Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Shares sold in offering (in shares) | shares		2,475,000
Share price (in dollars per share) | $ / shares							$ 20.00