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Loans and ACL - Summary of Modified Loans (Detail) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 USD ($) Loan | Jun. 30, 2023 USD ($)
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | $ 35,009 |
Recorded Investment of Modified Loans to Gross Loans by Category | 1.46% |
Modified term extension and forbearance financial effect | Forbearance agreements |
Modified term payment deferral financial effect | Payment deferral 6-9 months |
Total modified loan units | Loan | 7 |
Commercial and Industrial [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | $ 34,162 |
Commercial and Industrial [Member] | Term extension and Forbearance [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Modified term extension and forbearance loan units | Loan | 3 |
Recorded Investment | $ 33,979 | $ 29,800
Recorded Investment of Modified Loans to Gross Loans by Category | 6.93% |
Commercial and Industrial [Member] | Payment Deferral [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | $ 183 |
Recorded Investment of Modified Loans to Gross Loans by Category | 0.04% |
Modified term extension payment deferral units | Loan | 1 |
Residential [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | $ 692 |
Residential [Member] | Term extension and Forbearance [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Modified term extension and forbearance loan units | Loan | 1 |
Recorded Investment | $ 127 |
Recorded Investment of Modified Loans to Gross Loans by Category | 0.02% |
Residential [Member] | Payment Deferral [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | $ 565 |
Recorded Investment of Modified Loans to Gross Loans by Category | 0.06% |
Modified interest only loan units | Loan | 1 |
Construction, Residential [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | $ 155 |
Construction, Residential [Member] | Term extension and Forbearance [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Modified term extension and forbearance loan units | Loan | 1 |
Recorded Investment | $ 155 |
Recorded Investment of Modified Loans to Gross Loans by Category | 0.02% |
Current Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | $ 1,963 |
Current Loans [Member] | Commercial and Industrial [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | 1,681 |
Current Loans [Member] | Residential [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | 127 |
Current Loans [Member] | Construction, Residential [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment | 155 |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction, Residential [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Recorded Investment |  |

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