Income Taxes - Components of Net Loss Before Tax Provision from Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Net loss	$ (45,244)	$ (47,480)
United States
Operating Loss Carryforwards [Line Items]
Net loss	(6,272)	(13,310)
United Kingdom
Operating Loss Carryforwards [Line Items]
Net loss	$ (38,972)	$ (34,170)