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v3.23.3

Investments - Narrative (Details) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2023 USD ($) security | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) security | Sep. 30, 2022 USD ($) | Jan. 01, 2023 USD ($) | Dec. 31, 2022 USD ($) security
Schedule of Held-to-Maturity Securities [Line Items] |  |  |  |  |  |
Allowance for credit losses related to HTM securities | $ 0 |  | $ 0 |  | $ 0 |
Number of securities in unrealized loss position | security | 20 |  | 20 |  |  | 17
Investment securities held-to-maturity, at cost | $ 15,840,000 |  | $ 15,840,000 |  |  | $ 14,292,000
Sales or transfers of investment securities | 0 | $ 0 | 0 | $ 0 |  |
Realized gains or losses on investment securities | $ 0 | $ 0 | $ 0 | $ 0 |  |
Collateralized mortgage obligations |  |  |  |  |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |  |  |  |  |
Number of securities in unrealized loss position | security | 11 |  | 11 |  |  | 8
Investment securities held-to-maturity, at cost | $ 8,610,000 |  | $ 8,610,000 |  |  | $ 6,205,000
Mortgage-backed securities |  |  |  |  |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |  |  |  |  |
Number of securities in unrealized loss position | security | 9 |  | 9 |  |  | 9
Investment securities held-to-maturity, at cost | $ 7,230,000 |  | $ 7,230,000 |  |  | $ 8,087,000
Asset Pledged as Collateral | Federal Reserve Bank Advances |  |  |  |  |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |  |  |  |  |
Investment securities held-to-maturity, at cost | $ 14,200,000 |  | $ 14,200,000 |  |  |

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