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v3.23.3

Investments - Narrative (Details) $ in Thousands | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 USD ($) security | Sep. 30, 2023 USD ($) security | Sep. 30, 2023 USD ($) security Rate | Dec. 31, 2022 USD ($) security | Mar. 31, 2023 USD ($)
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Vertical risk retention interest |  | 5.00% | 5.00% |  |
Trading investments | $ 52,561 | $ 52,561 | $ 52,561 | $ 55,903 |
Number of government sponsored securities with unrealized losses | security | 226 | 226 | 226 | 191 |
Number of mortgage-backed securities | security | 230 | 230 | 230 | 194 |
Par value of mortgage-backed securities pledged to FRB | $ 582,000 | $ 582,000 | $ 582,000 | $ 547,000 |
Non-marketable securities investment | 14,000 | 14,000 | 14,000 | 8,000 |
Low income housing tax credit investments | 74,000 | 74,000 | 74,000 | 80,000 |
Liability for unfunded commitments | 34,000 | $ 34,000 | $ 34,000 | 46,000 |
Low income housing tax credit investments, tax credits and benefits (less than) | $ 1,000 |  |  | 9,000 |
Low income housing tax credit investments, expected tax benefits recognized |  | 25.00% |  |  |
Convertible Debt Securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Trading investments |  |  |  | $ 5,000 |
Equity Securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Non-marketable securities investment |  |  |  |  | $ 5,000

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