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Securities - Carrying value of other investment securities (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
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Other investment securities |  |
Carrying Value | $ 217,991 | $ 179,717
Federal Home Loan Bank stock |  |
Other investment securities |  |
Carrying Value | 53,335 | 15,085
Federal Reserve Bank Stock |  |
Other investment securities |  |
Carrying Value | 150,261 | 150,261
Investment in unconsolidated subsidiaries |  |
Other investment securities |  |
Carrying Value | 3,563 | 3,563
Other nonmarketable investment securities |  |
Other investment securities |  |
Carrying Value | $ 10,832 | $ 10,808

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- Definition Amount of investments classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(12)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(f,g)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
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