Commitments and Contingencies - Off-balance-sheet and Credit Risk (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Unused Commitments to Extend Credit	$ 898.6	$ 912.0
Commitments to originate fixed rate loans	$ 159.3
Weighted-average rate	7.04%
Commitments extended period	30 days
Diversified portfolio, loans	$ 1,500.0
Minimum [Member]
Term	12 months
Commitments to originate fixed rate loans rates	4.95%
Maximum [Member]
Term	24 months
Commitments to originate fixed rate loans rates	9.00%