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v3.23.1

Investments - Narrative (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 USD ($) security | Mar. 31, 2023 USD ($) security | Mar. 31, 2023 USD ($) security Rate | Dec. 31, 2022 USD ($) security
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Vertical risk retention interest |  | 5.00% | 5.00% |
Trading investments | $ 51,342 | $ 51,342 | $ 51,342 | $ 55,903
Number of government sponsored securities with unrealized losses | security | 182 | 182 | 182 | 191
Number of mortgage-backed securities | security | 193 | 193 | 193 | 194
Par value of mortgage-backed securities pledged to FRB | $ 530,000 | $ 530,000 | $ 530,000 | $ 547,000
Non-marketable securities investment | 14,000 | 14,000 | 14,000 | 8,000
Low income housing tax credit investments | 78,000 | 78,000 | 78,000 | 80,000
Low income housing tax credit investments, liability for unfunded commitments | 40,000 | $ 40,000 | 40,000 | 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 | $ 5,000 | $ 5,000 |

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- Definition Amount of affordable housing tax credits and other tax benefits recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 740 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985 + Details
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