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Securities - Trading Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Investment Securities |  |
Trading securities | $ 66,188 | $ 31,321
U.S. Government agencies |  |
Investment Securities |  |
Trading securities | 10,352 | 1,537
Residential mortgage pass-through securities issued or guaranteed by U.S. government agencies or sponsored enterprises |  |
Investment Securities |  |
Trading securities | 11,383 | 14,461
Other residential mortgage issued or guaranteed by U.S. government agencies or sponsored enterprises |  |
Investment Securities |  |
Trading securities | 1,148 |
Commercial mortgage-backed securities issued by U.S. government agencies or sponsored enterprises |  |
Investment Securities |  |
Trading securities | 8,467 |
State and municipal obligations |  |
Investment Securities |  |
Trading securities | 31,263 | 14,620
Other debt securities |  |
Investment Securities |  |
Trading securities | $ 3,575 | $ 703

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