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Loans, Analysis of Allowance for Credit Losses (Details) - USD ($) $ in Millions | 3 Months Ended |
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Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023
Allowance for Credit Losses [Abstract] |  |  |
Increase in provision for credit losses | $ 0.1 | $ 0.5 |
Allowance for credit losses to nonperforming loans | 375.20% | 324.50% | 408.90%
Credit loss reserve as percentage of total loans outstanding | 1.22% | 1.22% | 1.22%

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