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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Cash flows from operating activities:    
Net income (loss) $ (47,407) $ 63,327
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation, depletion, amortization and impairment 493,724 542,594
Deferred income tax expense 1,704 36,252
Stock-based compensation 21,867 22,864
Net gain on asset disposals (973) (6,689)
Other (1,972) 6,087
Changes in operating assets and liabilities:    
Accounts receivable (6,902) 101,645
Inventory 2,316 (9,779)
Other current assets (1,980) (22,164)
Other assets 3,236 15,999
Accounts payable 17,132 (45,696)
Accrued liabilities (125,396) (121,347)
Other liabilities (7,459) (19,680)
Net cash provided by operating activities 347,890 563,413
Cash flows from investing activities:    
Purchases of property and equipment (306,037) (357,449)
Proceeds from disposal of assets, including insurance recoveries 28,344 9,321
Other (11,514) (1,376)
Net cash used in investing activities (289,207) (349,504)
Cash flows from financing activities:    
Purchases of treasury stock (35,849) (230,202)
Dividends paid (61,619) (64,368)
Payments of finance leases (4,432) (31,905)
Other (10,820) (6,063)
Net cash used in financing activities (112,720) (332,538)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash (1,365) 985
Net decrease in cash, cash equivalents and restricted cash (55,402) (117,644)
Cash, cash equivalents and restricted cash at beginning of period 241,293 192,680
Cash, cash equivalents and restricted cash at end of period 185,891 75,036
Net cash paid during the period for:    
Interest, net of capitalized interest of $443 in 2025 and $527 in 2024 (33,396) (34,341)
Income taxes (3,106) (12,741)
Non-cash investing and financing activities:    
Net decrease in payables for purchases of property and equipment (12,115) (12,161)
Purchases of property and equipment through exchange of lease right of use asset 1,007 26,133
Derecognition of right of use asset $ (755) $ (31,179)