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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Cash flows from operating activities:    
Net income (loss) $ (83,857,000) $ (915,007,000)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation, depletion, amortization and impairment 719,322,000 917,274,000
Impairment of goodwill 0 885,240,000
Deferred income tax expense (benefit) (5,599,000) 5,824,000
Stock-based compensation 30,527,000 35,790,000
Net (gain) loss on asset disposals (1,739,000) (5,956,000)
Other 27,000 7,347,000
Changes in operating assets and liabilities:    
Accounts receivable (36,982,000) 103,691,000
Inventory 5,068,000 (15,086,000)
Other current assets (3,864,000) (7,457,000)
Other assets 9,825,000 23,397,000
Accounts payable 46,904,000 (25,322,000)
Accrued liabilities (104,082,000) (124,560,000)
Other liabilities (11,857,000) (25,473,000)
Net cash provided by operating activities 563,693,000 859,702,000
Cash flows from investing activities:    
Purchases of property and equipment (450,516,000) (538,036,000)
Investment in unconsolidated affiliate (10,500,000) 0
Proceeds from disposal of assets, including insurance recoveries 33,155,000 14,685,000
Other (8,980,000) (1,464,000)
Net cash used in investing activities (436,841,000) (524,815,000)
Cash flows from financing activities:    
Purchases of treasury stock (69,424,000) (269,948,000)
Dividends paid (92,114,000) (95,593,000)
Proceeds from borrowings under revolving credit facility 0 50,000,000
Repayment of borrowings under revolving credit facility 0 (50,000,000)
Payments of finance leases (6,216,000) (36,635,000)
Other (10,820,000) (9,156,000)
Net cash used in financing activities (178,574,000) (411,332,000)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash (2,658,000) (753,000)
Net change in cash, cash equivalents and restricted cash (54,380,000) (77,198,000)
Cash, cash equivalents and restricted cash at beginning of period 241,293,000 192,680,000
Cash, cash equivalents and restricted cash at end of period 186,913,000 115,482,000
Net cash paid during the period for:    
Interest, net of capitalized interest of $723 in 2025 and $938 in 2024 (43,206,000) (44,454,000)
Income taxes (5,442,000) (14,328,000)
Non-cash investing and financing activities:    
Net decrease in payables for purchases of property and equipment (7,098,000) (15,645,000)
Net decrease in deposits on equipment purchases 4,552,000 17,323,000
Purchases of property and equipment through exchange of lease right of use asset 772,000 26,382,000
Derecognition of right of use asset $ (794,000) $ (31,538,000)