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Accounts Payable and Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Accounts Payable and Accrued Liabilities    
Retention amounts included in accounts payable $ 17,400 $ 15,200
Accrued liabilities    
Payroll and related employee benefits 96,693 77,887
Current operating lease liability 59,342 61,587
Casualty insurance reserves 8,082 7,107
Corporate income taxes and other taxes 6,726 7,967
Other 22,227 20,273
Total accrued liabilities $ 193,070 $ 174,821