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Income Taxes - Components of Net Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Deferred Tax Assets:    
Accrued liabilities $ (80) $ 584
Allowance for doubtful accounts 85 136
Derivative Contracts 1,272 153
State Net operating loss carry-forwards 470 760
Total deferred tax assets 1,907 465
Deferred Tax Liabilities:    
Partnership basis difference (98) 544
Depletion and depreciation 40,748 36,288
Total deferred tax liabilities 40,650 36,832
Net deferred tax liabilities $ 38,743 $ 36,367