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Income Taxes - Schedule of Cash Paid for Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2026 | Apr. 30, 2025 | Apr. 30, 2024
Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Total cash paid during the period for income taxes | $ 5,661 | $ 7,300 | $ 12,700
Federal |  |  |
Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Total cash paid during the period for income taxes | 3,870 |  |
LOUISIANA |  |  |
Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Total cash paid during the period for income taxes | 403 |  |
Other [Member] |  |  |
Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Total cash paid during the period for income taxes | $ 1,388 |  |

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