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Incentive Plans - Equity Incentive Plan Policy Valuation Assumptions (Details) - Equity Incentive Plans - Stock options
12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted-average volatility 23.50% 22.50%
Expected dividend yield   4.50%
Expected term (in years) 7 years 3 months 18 days 7 years 4 months 24 days
Risk-free interest rate   4.30%
Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility 23.40% 21.60%
Expected dividend yield 3.40%  
Risk-free interest rate 4.30%  
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility 23.60% 22.90%
Expected dividend yield 3.70%  
Risk-free interest rate 4.50%