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Fair Value Measurements - Financial Assets and Liabilities Accounted for at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands | Jul. 31, 2025 | Jul. 31, 2024
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Fair Value, Inputs, Level 1 [Member] | Other assets [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Marketable Securities, Noncurrent | $ 19,998 | $ 20,029
Fair Value, Inputs, Level 2 [Member] | Prepaid expenses and other current assets [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 | 137
Fair Value, Inputs, Level 2 [Member] | Other current liabilities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure | $ 198 | $ 730

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