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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2023 | Nov. 30, 2022 | Nov. 30, 2023 | Nov. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Pre-tax stock-based compensation expense | $ 6,175 | $ 4,547 | $ 10,691 | $ 8,783
Non-Qualified Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Non-qualified stock options, granted |  |  | 54,000 |
Par value of common stock | $ 0 |  | $ 0 |
Non-qualified stock option, per share weighted average price |  |  | 69.47 |
Non-qualified stock option, fair value, per share price |  |  | $ 25.95 |
Pre-tax stock-based compensation, period of recognition |  |  | 3 years |
Pre-tax stock-based compensation expense |  |  | $ 1,401 |
Service-Based Restricted Common Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Pre-tax stock-based compensation, period of recognition |  |  | 3 years |
Pre-tax stock-based compensation expense |  |  | $ 11,640 |
Restricted common shares, granted |  |  | 176,000 |
Restricted common shares, fair value per share |  |  | $ 65.97 |
Performance Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Pre-tax stock-based compensation expense |  |  | $ 3,235 |
Restricted common shares, granted |  |  | 47,000 |
Pre-tax stock-based compensation, period of recognition |  |  | 3 years |

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