Note 13. Share Owners' Equity - Textuals (Details) - USD ($) |
12 Months Ended | 128 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2026 |
|
| Share Repurchase Program, Authorized, Amount | $ 140,000,000 | $ 140,000,000 | ||
| Treasury Stock, Value, Acquired, Cost Method | $ (11,926,000) | $ (11,958,000) | $ (3,035,000) | |
| Treasury Stock Acquired, Average Cost Per Share | $ 16.39 | |||
| Excludes Excise Tax [Member] | ||||
| Treasury Stock Acquired, Average Cost Per Share | $ 26.56 | $ 18.19 | $ 22.12 | |
| Treasury Stock, Common | ||||
| Treasury Stock, Value, Acquired, Cost Method | $ (11,926,000) | $ (11,958,000) | $ (3,035,000) | |
| Treasury Stock, Common | Excludes Excise Tax [Member] | ||||
| Treasury Stock, Value, Acquired, Cost Method | $ (11,900,000) | $ 11,900,000 | $ 3,000,000.0 | $ (115,600,000) |