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Loans and Allowance for Credit Losses - Carrying Amount of PCI Loans (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
Financing Receivable, Impaired [Line Items]        
Allowance for credit losses $ 35,513 $ 23,837 $ 18,194 $ 17,603
Purchased credit impaired loans        
Financing Receivable, Impaired [Line Items]        
Carrying amount of purchased credit impaired loans     15,300  
Allowance for credit losses     $ 614 $ 663