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v3.22.2.2

Treasury Stock - Schedule of repurchase of common stock (Details) - USD ($) | 3 Months Ended | 53 Months Ended |  |
--- | --- | --- | --- | ---
Aug. 31, 2022 | Aug. 31, 2022 | May 31, 2022 | Mar. 18, 2020
Stockholders' Equity Attributable to Parent [Abstract] |  |  |  |
Authorized amount of stock to be repurchased |  |  | $ 50,000,000.0 | $ 50,000,000.0
Total current Board authorizations | $ (5,100,000) | $ (21,200,000) |  |
Less repurchases made under these authorizations | 28,800,000 | 28,800,000 |  |
Treasury Stock, Value, Acquired, Cost Method | $ 5,100,000 | $ 21,200,000 |  |

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- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
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