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Investment Securities - Trading Securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Investment Securities    
Trading securities $ 88,088 $ 77,689
U.S. Government agencies    
Investment Securities    
Trading securities 13,428 5,154
Residential mortgage-backed securities issued by U.S. government agencies or sponsored enterprises    
Investment Securities    
Trading securities 28,079 6,853
Other residential mortgage issued or guaranteed by U.S. government agencies or sponsored enterprises    
Investment Securities    
Trading securities 2,236 12,315
Commercial mortgage-backed securities issued by U.S. government agencies or sponsored enterprises    
Investment Securities    
Trading securities 18,570 29,667
State and municipal obligations    
Investment Securities    
Trading securities 9,357 20,798
Other debt securities    
Investment Securities    
Trading securities $ 16,418 $ 2,902