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Fair Value Measurements - Impaired Loans Remeasured and Reported at Fair Value of Underlying Collateral (Detail) - USD ($) $ in Thousands | Jun. 30, 2025 | Jun. 30, 2024
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Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Carrying value before allocations | $ 6,691 | $ 17,832
Specific (allocations) reversals of prior allocations | (528) | (1,916)
Fair value | 6,163 | 15,916
Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Carrying value before allocations | 15,830 | 14,159
Specific (allocations) reversals of prior allocations | (1,921) | (1,501)
Fair value | $ 13,909 | $ 12,658

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