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Securities - Securities Held to Maturity (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Jun. 30, 2022
--- | --- | ---
Schedule Of Held To Maturity Securities [Line Items] |  |
Amortized Cost | $ 153,786 | $ 118,291
Gross Unrecognized Gains | 0 | 44
Gross Unrecognized Losses | 15,393 | 10,217
Allowance for Credit Losses | 0 | 0
Fair Value | 138,393 | 108,118
Debt securities: |  |
Schedule Of Held To Maturity Securities [Line Items] |  |
Amortized Cost | 18,806 | 21,159
Gross Unrecognized Gains | 0 | 44
Gross Unrecognized Losses | 285 | 78
Allowance for Credit Losses | 0 | 0
Fair Value | 18,521 | 21,125
Obligations of state and political subdivisions |  |
Schedule Of Held To Maturity Securities [Line Items] |  |
Amortized Cost | 18,806 | 21,159
Gross Unrecognized Gains | 0 | 44
Gross Unrecognized Losses | 285 | 78
Allowance for Credit Losses | 0 | 0
Fair Value | 18,521 | 21,125
Mortgage-backed securities: |  |
Schedule Of Held To Maturity Securities [Line Items] |  |
Amortized Cost | 134,980 | 97,132
Gross Unrecognized Gains | 0 | 0
Gross Unrecognized Losses | 15,108 | 10,139
Allowance for Credit Losses | 0 | 0
Fair Value | 119,872 | 86,993
Residential pass-through securities |  |
Schedule Of Held To Maturity Securities [Line Items] |  |
Amortized Cost | 122,715 | 84,851
Gross Unrecognized Gains | 0 | 0
Gross Unrecognized Losses | 12,898 | 8,587
Allowance for Credit Losses | 0 | 0
Fair Value | 109,817 | 76,264
Commercial pass-through securities |  |
Schedule Of Held To Maturity Securities [Line Items] |  |
Amortized Cost | 12,265 | 12,281
Gross Unrecognized Gains | 0 | 0
Gross Unrecognized Losses | 2,210 | 1,552
Allowance for Credit Losses | 0 | 0
Fair Value | $ 10,055 | $ 10,729

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