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Securities, Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Jun. 30, 2022
--- | --- | ---
Available-for-sale Debt Securities, Amortized Cost [Abstract] |  |
Within one year | $ 193,528 |
After one year through five years | 27,017 |
After five years through ten years | 20,703 |
After ten years | 1,500 |
Total | 242,748 |
Mortgage-backed securities | 122,268 |
Amortized cost | 365,016 | $ 431,625
Available-for-sale Debt Securities, Fair Value [Abstract] |  |
Within one year | 193,814 |
After one year through five years | 24,345 |
After five years through ten years | 17,475 |
After ten years | 1,157 |
Total | 236,791 |
Mortgage-backed securities | 98,327 |
Estimated fair value | 335,118 | 408,062
Held-to-maturity Debt Securities, Amortized Cost [Abstract] |  |
Within one year | 59,578 |
After one year through five years | 167,831 |
After five years through ten years | 141,455 |
After ten years | 173,976 |
Total | 542,840 |
Mortgage-backed securities | 199,630 |
Amortized cost | 742,470 | 761,852
Held-to-maturity Debt Securities, Fair Value [Abstract] |  |
Within one year | 59,044 |
After one year through five years | 163,465 |
After five years through ten years | 133,712 |
After ten years | 150,875 |
Total | 507,096 |
Mortgage-backed securities | 175,114 |
Estimated fair value | 682,210 | 710,453
Total Debt Securities [Abstract] |  |
Amortized cost | 1,107,486 | 1,193,477
Estimated fair value | $ 1,017,328 | $ 1,118,515

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