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Employee Benefit Plan (Assumptions Used in Calculating Net Pension Expense) (Details)
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Retirement Benefits [Abstract]      
Discount rate 4.60% 2.55% 2.45%
Interest crediting rate 3.25% 3.25% 3.25%
Expected long-term rate of return on assets 6.75% 6.75% 6.75%
Increase in compensation levels     4.00%