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Stock-Based Compensation - Stock Options (Details) - $ / shares
 12 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2022
Shares      
Outstanding options at beginning of year (in shares) 17,973 49,223 161,723
Options exercised (in shares) 0 (31,250) (112,500)
Outstanding options at end of year (in shares) 17,973 17,973 49,223
Exercisable at end of year (in shares) 17,973 17,973 31,730
Weighted Average Exercise Price/Share      
Outstanding options at beginning of year (in dollars per share) $ 37.55 $ 40.46 $ 32.64
Options exercised (in dollars per share) 0 42.13 29.22
Outstanding options at end of year (in dollars per share) 37.55 37.55 40.46
Exercisable at end of year (in dollars per share) $ 37.55 $ 37.55 $ 40.26