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Lease costs (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]      
Short-term lease cost $ 160,318 $ 132,449 $ 135,376
Operating lease cost 44,956 46,622 45,319
Variable lease cost 1,739 1,516 1,319
Total lease costs $ 207,013 $ 180,587 $ 182,014
Weighted average remaining lease term 2 years 9 months 29 days 2 years 8 months 1 day 2 years 8 months 23 days
Weighted average discount rate 4.05% 3.54% 4.03%
Cash paid for amounts included in the measurement of lease liabilities $ 44,512 $ 43,489 $ 45,043