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Operating leases - Schedule of Lease Costs (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Leases [Abstract]        
Operating lease costs $ 12,164 $ 18,905 $ 40,976 $ 34,243
Income from sub-leases (268) (312) (898) (743)
Net operating lease costs $ 11,896 $ 18,593 $ 40,078 $ 33,500