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Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Apr. 30, 2025 | Apr. 30, 2024
--- | --- | ---
Deferred tax assets: |  |
Deferred compensation | $ 145,410 | $ 136,722
Operating lease liability | 18,015 | 22,693
Loss carryforwards | 25,565 | 28,542
Reserves and accruals | 20,833 | 20,398
Allowance for doubtful accounts | 6,786 | 7,169
Deferred revenue | 6,112 | 7,086
Gross deferred tax assets | 222,721 | 222,610
Deferred tax liabilities: |  |
Operating lease, right-of-use, assets | (14,531) | (19,316)
Intangibles and goodwill | (24,753) | (24,697)
Property and equipment | (10,306) | (12,567)
Prepaid expenses | (15,997) | (16,172)
Unrealized gain on marketable securities | (6,502) | (6,164)
Other | (2,584) | (2,158)
Gross deferred tax liabilities | (74,673) | (81,074)
Valuation allowances | (9,469) | (12,512)
Net deferred tax asset | $ 138,579 | $ 129,024

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