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v3.24.2.u1

Allowance for Credit Losses - Loan Modified to Borrowers Experiencing Financial Difficulty (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | $ 2,423,000 | $ 7,719,000 |  |
% of Total Class of Financing Receivable |  | 0.01% |  |  |  |
Commitments related to borrowers experiencing financial difficulty | $ 0 |  |  | 0 |  |
Aggregate commitments to extend credit, standby letters of credit and commercial letters of credit | 6,400,000,000 |  |  | 6,400,000,000 |  | $ 6,500,000,000
Commitments related to borrowers experiencing financial difficulty |  |  |  |  |  | $ 5,000,000.0
Financial Asset, 30 to 59 Days Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 34,000 | 152,000 |  |
Financial Asset, 60 to 89 Days Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  |  | 53,000 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 33,000 | 31,000 |  |
Financial Asset, Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 67,000 | 236,000 |  |
Financial Asset, Not Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 2,356,000 | 7,483,000 |  |
Commercial and Industrial |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 109,000 | 435,000 |  |
Commercial and Industrial | Financial Asset, Not Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 109,000 | 435,000 |  |
Construction |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 230,000 | 653,000 |  |
Construction | Financial Asset, Not Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 230,000 | 653,000 |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 1,229,000 | 2,685,000 |  |
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 1,229,000 | 2,685,000 |  |
Residential mortgage |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 33,000 | 2,326,000 |  |
Residential mortgage | Financial Asset, Not Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 33,000 | 2,326,000 |  |
Consumer |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 822,000 | 1,620,000 |  |
Consumer | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 34,000 | 152,000 |  |
Consumer | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  |  | 53,000 |  |
Consumer | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 33,000 | 31,000 |  |
Consumer | Financial Asset, Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | 67,000 | 236,000 |  |
Consumer | Financial Asset, Not Past Due [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  | $ 755,000 | 1,384,000 |  |
Interest Rate Reduction |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis | 473,000 | $ 371,000 |  | 1,043,000 | $ 707,000 |
Amortized Cost Basis of Modified Loans That Subsequently Defaulted | 397,000 | 87,000 |  | 467,000 | 88,000 |
Interest Rate Reduction | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  |  |  | $ 2,000 |
Reduced weighted-average contractual interest rate |  |  |  |  | 0.75% |
Interest Rate Reduction | Consumer |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis | $ 473,000 | $ 371,000 |  | $ 1,043,000 | $ 705,000 |
% of Total Class of Financing Receivable | 0.05% | 0.03% |  | 0.10% | 0.06% |
Reduced weighted-average contractual interest rate | 13.61% | 12.98% |  | 13.57% | 13.23% |
Amortized Cost Basis of Modified Loans That Subsequently Defaulted | $ 397,000 | $ 87,000 |  | $ 467,000 | $ 88,000 |
Term Extension |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis | $ 2,074,000 | 1,360,000 |  | $ 2,685,000 | $ 1,716,000 |
% of Total Class of Financing Receivable | 0.01% |  |  | 0.02% | 0.01% |
Amortized Cost Basis of Modified Loans That Subsequently Defaulted | $ 94,000 |  |  | $ 94,000 |  |
Term Extension | Commercial and Industrial |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis | 83,000 | $ 87,000 |  | $ 273,000 | $ 109,000 |
% of Total Class of Financing Receivable |  |  |  | 0.01% |  |
Added weighted-average years to the life of loans |  | 3 years 7 months 6 days | 4 years 1 month 6 days | 4 years 10 months 24 days | 3 years 6 months |
Amortized Cost Basis of Modified Loans That Subsequently Defaulted | 74,000 |  |  | $ 74,000 |  |
Term Extension | Construction |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  |  |  | $ 230,000 |
% of Total Class of Financing Receivable |  |  |  |  | 0.03% |
Added weighted-average years to the life of loans |  |  |  |  | 2 years 10 months 24 days |
Term Extension | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis | $ 1,184,000 | $ 1,227,000 |  | $ 1,184,000 | $ 1,227,000 |
% of Total Class of Financing Receivable | 0.03% | 0.03% |  | 0.03% | 0.03% |
Added weighted-average years to the life of loans | 1 year | 1 year |  | 1 year | 1 year |
Term Extension | Residential mortgage |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis | $ 792,000 |  |  | $ 1,099,000 | $ 33,000 |
% of Total Class of Financing Receivable | 0.02% |  |  | 0.03% |  |
Added weighted-average years to the life of loans |  |  | 9 months 18 days | 8 months 12 days | 5 years 10 months 24 days |
Term Extension | Consumer |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis | $ 15,000 | $ 46,000 |  | $ 129,000 | $ 117,000 |
% of Total Class of Financing Receivable |  |  |  | 0.01% | 0.01% |
Added weighted-average years to the life of loans | 2 years 10 months 24 days | 2 years 3 months 18 days |  | 4 years 1 month 6 days | 3 years 7 months 6 days |
Amortized Cost Basis of Modified Loans That Subsequently Defaulted | $ 20,000 |  |  | $ 20,000 |  |
Other-Than-Insignificant Payment Delay |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  |  | 1,226,000 |  |
Other-Than-Insignificant Payment Delay | Residential mortgage |  |  |  |  |  |
Troubled debt restructuring modifications |  |  |  |  |  |
Amortized Cost Basis |  |  |  | $ 1,226,000 |  |
% of Total Class of Financing Receivable |  |  |  | 0.03% |  |
Deferred loan payments |  |  |  | $ 172,000 |  |

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