Summary of Weighted-Average Grant-Date Fair Value of Options, Total Intrinsic Value of Options Exercised, and Cash Receipts from Options Exercised (Detail) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Aug. 31, 2022 |
Aug. 31, 2021 |
Aug. 31, 2020 |
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| Share-Based Payment Arrangement [Abstract] | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value | $ 0 | $ 587,000 | $ 803,000 |
| Stock option exercises & other | $ 0 | $ 2,208,000 | $ 2,631,000 |
| Expected forfeiture rate | 12.00% | 12.00% | 8.00% |
| Stock option, aggregate intrinsic Value | $ 0 | ||
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- Definition Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Forfeiture Rate No definition available.
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- References No definition available.
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- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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