Annual report pursuant to Section 13 and 15(d)

Income taxes - Loss before Income Taxes (Details)

v3.22.4
Income taxes - Loss before Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income taxes      
Loss before income tax expense $ (162,959) $ (157,299) $ (129,930)
U.S.      
Income taxes      
Loss before income tax expense (3,245) 1,625 (1,359)
U.K.      
Income taxes      
Loss before income tax expense $ (159,714) $ (158,924) $ (128,571)