Capital Stock and Changes in Capital Accounts - Share Repurchases (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Jul. 31, 2025 |
Jul. 31, 2024 |
Apr. 30, 2020 |
|
| Share Repurchase Program In 2020 | |||
| Capital Stock [Abstract] | |||
| Share Repurchase Program, Authorized, Amount | $ 250.0 | $ 200.0 | |
| Remaining amount authorized to be repurchased under the share repurchase program | $ 43.4 | ||
| Class A common stock | |||
| Share Repurchases [Abstract] | |||
| Shares repurchased (in shares) | 331 | 295 | |
| Treasury stock acquired (in dollars per share) | $ 42.22 | $ 42.34 | |
| Class B common stock | |||
| Share Repurchases [Abstract] | |||
| Shares repurchased (in shares) | 1 | 0 | |
| Treasury stock acquired (in dollars per share) | $ 42.22 | $ 42.34 | |