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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Apr. 30, 2025 | Apr. 30, 2024 | Apr. 30, 2023
Operating Loss Carryforwards [Line Items] |  |  |
Less valuation allowance | $ 550 | $ 550 |
Unrecognized tax benefits | 10,773 | 10,747 | $ 10,957
Unrecognized tax benefits that would impact effective tax rate | 8,510 |  |
Increase (decrease) in unrecognized tax benefits | 26 |  |
Accrued interest and penalties | 266 | 350 |
Increase (decrease) in tax expense | (84) | $ (36) |
Decrease in unrecognized tax benefits is reasonable possible | 2,500 |  |
State |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Operating loss carryforwards | 236,448 |  |
Tax credit carryforward | $ 2,133 |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
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