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Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Apr. 30, 2024 | Apr. 30, 2023
--- | --- | ---
Deferred tax assets: |  |
Deferred compensation | $ 136,722 | $ 120,361
Operating lease liability | 22,693 | 26,952
Loss carryforwards | 28,542 | 28,707
Reserves and accruals | 20,398 | 21,140
Allowance for doubtful accounts | 7,169 | 7,272
Deferred revenue | 7,086 | 6,436
Gross deferred tax assets | 222,610 | 210,868
Deferred tax liabilities: |  |
Operating lease, right-of-use, assets | (19,316) | (22,056)
Intangibles and goodwill | (24,697) | (26,310)
Property and equipment | (12,567) | (15,953)
Prepaid expenses | (16,172) | (20,037)
Unrealized gain on marketable securities | (6,164) | (402)
Other | (2,158) | (4,179)
Gross deferred tax liabilities | (81,074) | (88,937)
Valuation allowances | (12,512) | (25,226)
Net deferred tax asset | $ 129,024 | $ 96,705

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