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Description of Business, Basis of Presentation, Significant Accounting Policies and Recently Issued Accounting Pronouncements (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) branch segment | Dec. 31, 2021 USD ($) tranch | Dec. 31, 2020 USD ($)
Variable Interest Entity [Line Items] |  |  |
Total contractual lease payments | $ 25,000 |  |
Number of certified development entities | tranch |  | 3 |
Required funding percentage |  | 85.00% |
Number of operating segments | segment | 1 |  |
Subsidiaries | Investment Tax Credit Carryforward |  |  |
Variable Interest Entity [Line Items] |  |  |
Equity method investments |  | $ 25,000,000 | $ 9,800,000
Minimum | Building and Building Improvements |  |  |
Variable Interest Entity [Line Items] |  |  |
Useful lives | 15 years |  |
Minimum | Furniture, fixtures and equipment |  |  |
Variable Interest Entity [Line Items] |  |  |
Useful lives | 3 years |  |
Maximum | Building and Building Improvements |  |  |
Variable Interest Entity [Line Items] |  |  |
Useful lives | 39 years |  |
Maximum | Furniture, fixtures and equipment |  |  |
Variable Interest Entity [Line Items] |  |  |
Useful lives | 7 years |  |
Heritage Bank |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of branches | branch | 50 |  |

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