Employee Benefits - Schedule of Share-based Compensation, Stock Options, Activity (Details) - $ / shares	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Outstanding at beginning of year
Defined Contribution Plan Disclosure [Line Items]
Weighted Average Price	$ 36.56		$ 33.77	$ 33.22
Number	104,000	89,500	60,500
Granted
Defined Contribution Plan Disclosure [Line Items]
Weighted Average Price	$ 38.58	$ 53.82	$ 34.91
Number	44,000	14,500	29,000
Outstanding at year-end
Defined Contribution Plan Disclosure [Line Items]
Weighted Average Price	$ 39.63	$ 36.56	$ 33.77
Number	148,000	104,000	89,500
Options exercisable at year-end
Defined Contribution Plan Disclosure [Line Items]
Weighted Average Price	$ 33.89	$ 31.92	$ 29.79
Number	63,700	44,900	29,000