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Capital Stock and Changes in Capital Accounts - Share Repurchases (Details) - $ / shares shares in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2024 | Oct. 31, 2023
Class A common stock |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Shares repurchased (in shares) | 261 | 367 | 556 | 668
Treasury stock acquired (in dollars per share) | $ 47.76 | $ 33.97 | $ 44.89 | $ 33.64
Class B common stock |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Shares repurchased (in shares) | 1 | 1 | 1 | 1
Treasury stock acquired (in dollars per share) | $ 47.76 | $ 33.97 | $ 44.89 | $ 33.64

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