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Equity (Tables) | 12 Months Ended
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Aug. 31, 2025
Stockholders' Equity Note [Abstract] |
Summary of Estimated Fair Value under Monte-Carlo Simulation Model Assumptions | the Company estimates the fair value using a Monte-Carlo simulation model utilizing the following key assumptions for such awards:
|  | For the Year Ended August 31,
|  | 2025 |  |  | 2024 |  |  | 2023 |  |
Expected share price volatility (GBX) |  |  | 44.8 | % |  |  | 45.0 | % |  |  | 54.0 | % |
Risk-free rate of return |  |  | 3.9 | % |  |  | 5.0 | % |  |  | 4.4 | % |
Summary of Restricted Stock Share and Restricted Stock Unit Grants | The following table summarizes the activity for the Company’s restricted stock unit grants, including performance based grants, under the 2021 Stock Incentive Plan:
(in thousands, except per unit amounts) |  | Number of Units |  |  | Weighted Average Grant Date Fair Value |
Outstanding as of August 31, 2024 |  |  | 901 |  |  | $ | 38.47 |
Granted 1 |  |  | 312 |  |  | $ | 56.00 |
Incremental shares earned for performance 2 |  |  | 55 |  |  | $ | 47.72 |
Vested 3 |  |  | (363 | ) |  | $ | 43.02 |
Forfeited |  |  | (55 | ) |  | $ | 35.82 |
Outstanding as of August 31, 2025 |  |  | 850 |  |  | $ | 43.71 |
1 Includes 143 thousand time-based and 169 thousand performance-based restricted stock unit awards. 2 For the 2022-2024 performance period, incremental shares earned includes 55 thousand additional shares awarded to participants based on the EBITDA criteria for which actual performance resulted in a payout above target. 3 Includes 171 thousand time-based and 192 thousand performance-based restricted stock units.

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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