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Supplemental Balance Sheet, Income Statement and Cash Flow Information - Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Accrued liabilities    
Accrued compensation $ 52,181 $ 51,993
Deferred revenue and proceeds on insurance and asset sales 44,970 59,816
Other taxes payable 26,783 34,333
Workers' compensation liabilities 6,588 6,588
Interest payable 55,779 71,814
Litigation reserves 16,270 14,939
Other accrued liabilities 7,339 7,688
Accrued liabilities $ 209,910 $ 247,171