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Investment Securities - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]      
Accrued interest related to AFS debt securities $ 4,800   $ 4,000
Callable debt securities, fair value 162,100    
Sale of debt securities 0 $ 32,715  
Equity securities at fair value 5,375   4,269
Collateral Pledged      
Debt Securities, Available-for-sale [Line Items]      
Debt securities, pledged as collateral $ 814,700   $ 804,200