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v3.25.2

Capital Stock and Changes in Capital Accounts (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Apr. 30, 2025 USD ($) vote shares | Apr. 30, 2024 USD ($) | Apr. 30, 2023 USD ($) | Apr. 30, 2020 USD ($)
Class of Stock [Line Items] |  |  |  |
Total dividends paid | $ (76,101) | $ (76,964) | $ (77,298) |
2020 Share Repurchase Program |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock repurchase program, authorized amount |  |  |  | $ 200,000
Remaining amount authorized to be repurchased under the share repurchase program | $ 57,400 |  |  |
Class A |  |  |  |
Class of Stock [Line Items] |  |  |  |
Class A common shares into which each share of class B common stock is convertible (in shares) | shares | 1 |  |  |
Percentage of the board of directors elected by class A common stockholders | 30.00% |  |  |
Number of votes to which each share of common stock is entitled | vote | 0.1 |  |  |
Class B |  |  |  |
Class of Stock [Line Items] |  |  |  |
Number of votes to which each share of common stock is entitled | vote | 1 |  |  |

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