Employee Benefit Plans - Additional Information (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
United Kingdom
Defined Contribution Plan Disclosure [Line Items]
Contributions paid	$ 1,800,000	$ 1,000,000.0	$ 0.5
United States \| Maximum
Defined Contribution Plan Disclosure [Line Items]
Contributions paid	$ 100,000	$ 100,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_DefinedContributionPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration