Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Income Tax Expense at Federal Rate (Details)

v3.25.0.1
Income Taxes - Summary of Income Tax Expense at Federal Rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]      
Computed tax expense at the statutory rate of 21% $ 121,552 $ 108,688 $ 119,460
Reduction in income taxes resulting from:      
State taxes 3,182 3,439 3,045
Executive compensation 1,803 1,117 1,146
Research and development credit (850) 0 0
Statutory depletion (653) (682) (823)
Prior year tax adjustments 75 (305) (13)
Correction of historical tax depletion 0 0 805
Estimated penalties and interest 0 0 (763)
Other, net (248) (341) (364)
Income tax expense $ 124,861 $ 111,916 $ 122,493
Effective tax rate (in percent) 21.60% 21.60% 21.50%