v3.25.4
Income Taxes (Reconciliation of Income Tax Expense (Benefit)) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items]      
Expected income tax expense at U.S. federal statutory rate $ (93,327) $ (31,330) $ 26,001
State and local income tax, net of federal (national) income tax effect (864) (5) 4,608
Statutory tax rate difference   29,924 (3,406)
U.S. impact of branch income at 3.4% (85,469)    
Changes in valuation allowance 81,640    
Non-taxable or non-deductible items (1,765)    
Changes in unrecognized tax benefits 1,906 (1,007) 21,243
Percentage depletion   (3,407) (17,871)
FDII deduction   0 (7,796)
Permanent differences   (1,130) 2,176
Prior period tax return adjustments and amendments   (1,347) (46,060)
U.S. and residual tax on foreign earnings   (32,007) (11,146)
Total income tax benefit $ (12,359) $ (40,309) $ (32,251)
U.S. federal statutory tax rate, percent 21.00%    
State and local income tax, net of federal (national) income tax effect, percent 0.20%    
U.S. impact of branch income at 3.4%, percent 19.20%    
Changes in valuation allowance, percent 18.40%    
Non-taxable or non-deductible items, percent 0.30%    
Changes in unrecognized tax benefits, percent 0.40%    
Effective tax rate, percent 2.80% 27.00% (26.00%)
Australia [Member]      
Effective Income Tax Rate Reconciliation [Line Items]      
Statutory tax rate difference $ (37,070)    
Valuation allowance 109,438    
Foreign exchange permanent differences 14,992    
Other $ (1,580)    
Statutory tax rate difference, percent 8.40%    
Valuation allowance, percent 24.60%    
Foreign exchange permanent differences, percent 3.40%    
Other, percent 0.40%    
Percent of US impact of branch income 3.40%    
United States of America [Member]      
Effective Income Tax Rate Reconciliation [Line Items]      
Other $ (260)    
Other, percent 0.10%