Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Summary of accrued liabilities
Accrued payroll and other employee related expenses	$ 303,935	$ 385,800
Income taxes payable	154,406	2,230
Accrued business taxes	118,077	81,055
Self-insurance reserves	72,413	68,060
Accrued rebates payable	30,925	51,805
Amounts accrued for repurchases of common stock	11,917	51,545
Accrued interest	25,432	31,666
Other	55,268	46,743
Total accrued liabilities	$ 772,373	$ 718,904