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Investment Securities - Trading Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Investment Securities
Trading securities	$ 56,580	$ 31,263
U.S. Government agencies
Investment Securities
Trading securities	11,049	11,190
Residential mortgage pass-through securities issued or guaranteed by U.S. government agencies or sponsored enterprises
Investment Securities
Trading securities	8,265
Other residential mortgage issued or guaranteed by U.S. government agencies or sponsored enterprises
Investment Securities
Trading securities	3,645
Commercial mortgage-backed securities issued by U.S. government agencies or sponsored enterprises
Investment Securities
Trading securities	11,705	4,589
State and municipal obligations
Investment Securities
Trading securities	20,298	13,993
Other debt securities
Investment Securities
Trading securities	$ 1,618	$ 1,491

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