Annual report pursuant to Section 13 and 15(d)

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

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Income Taxes - Summary of Income Tax Expense at Federal Rate (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]        
Computed tax expense at the statutory rate of 21%   $ 76,234 $ 46,129 $ 84,473
Reduction in income taxes resulting from:        
Statutory depletion   (584) (4,577) (5,163)
State taxes   1,740 1,234 1,657
Executive compensation   1,687 789 1,302
Prior year tax adjustments   18 7 755
Correction of historical tax depletion   12,975 0 0
Estimated penalties and interest   1,022 0 0
Other, net   (55) 31 503
Total income tax expense $ 19,400 $ 93,037 $ 43,613 $ 83,527
Effective tax rate 22.10% 25.60% 19.90% 20.80%