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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]    
Claims and insurance reserves $ 28,390 $ 27,433
Accrued vacation 17,642 17,932
Deferred compensation 42,417 31,306
Other 11,843 20,861
Total deferred tax assets 100,292 97,532
Depreciation and amortization (354,762) (339,311)
Other (3,617) (3,151)
Total deferred tax liabilities (358,379) (342,462)
Net deferred tax liability $ (258,087) $ (244,930)