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Income Taxes - Tax Effect of Temporary Differences and Tax Attributes Representing Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets:    
Net operating loss carryforwards $ 406,876 $ 498,948
Tax credits 17,254 13,488
Expense associated with stock options and restricted stock units 8,344 10,892
Workers’ compensation allowance 9,437 7,024
Other deferred tax asset 79,132 69,480
Total deferred tax assets, gross 521,043 599,832
Allowance to reduce deferred tax asset to expected realizable value (86,693) (75,250)
Total deferred tax assets 434,350 524,582
Deferred tax liabilities:    
Property and equipment basis difference (654,541) (729,376)
Other (17,906) (39,386)
Total deferred tax liabilities (672,447) (768,762)
Net deferred tax liability $ (238,097) $ (244,180)