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Cash and Marketable Securities - Summary of components of marketable securities (Detail) - Commercial Paper And Corporate Bonds [Member] - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2023 | May 31, 2023
Marketable Securities [Line Items] |  |
Amortized Cost | $ 60,885 | $ 83,549
Unrealized Gains | 0 | 0
Unrealized Losses | (461) | (1,220)
Fair Value | $ 60,424 | $ 82,329

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