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v3.7.0.1

Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Apr. 30, 2017 | Apr. 30, 2016
--- | --- | ---
Income Taxes [Line Items] |  |
Deferred compensation | $ 92,043 | $ 91,712
Loss and credit carryforwards | 32,854 | 31,023
Reserves and accruals | 14,095 | 14,189
Deferred rent | 9,797 | 7,684
Deferred revenue | 2,434 | 11,464
Allowance for doubtful accounts | 1,705 | 1,431
Other | 3,041 | 5,002
Gross deferred tax assets | 155,969 | 162,505
Intangibles | (90,214) | (94,284)
Property and equipment | (11,507) | (10,603)
Prepaid expenses | (17,324) | (12,698)
Other | (2,485) | (815)
Gross deferred tax liabilities | (121,530) | (118,400)
Valuation allowances | (21,278) | (22,030)
Net deferred tax asset | $ 13,161 | $ 22,075

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