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Schedule of Components of Deferred Income Taxes (Detail) - USD ($) $ in Thousands | Mar. 31, 2022 | Mar. 31, 2021
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Income Tax Disclosure [Abstract] |  |
Excess Tax Depreciation and Amortization | $ (242,335) | $ (242,235)
Investment in Joint Venture Basis Differences | (7,813) | (3,621)
Depletable Assets | (3,769) | (6,740)
Right of Use Assets | (5,897) | (6,506)
Inventory | 548 |
Other | (3,506) | (2,913)
Total Deferred Tax Liabilities | (263,868) | (262,015)
Change in Accruals | 13,255 | 13,859
Inventory |  | 1,387
Bad Debts | 1,600 | 2,022
Long-term Incentive Compensation Plan | 3,252 | 3,940
Credits and Other Carryforwards | 12,747 | 17,338
Lease Liability | 8,849 | 10,141
Pension | 1,001 | 1,103
Subtotal | 40,704 | 49,790
Valuation Allowance | (9,205) | (13,761)
Total Deferred Tax Assets | $ 31,499 | $ 36,029

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