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Loans and Allowance for Credit Losses - Carrying Amount of PCI Loans (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Financing Receivable, Impaired [Line Items]            
Allowance for credit losses $ 30,294 $ 35,513 $ 23,837 $ 22,734 $ 18,194 $ 17,603
Purchased credit impaired loans            
Financing Receivable, Impaired [Line Items]            
Carrying amount of purchased credit impaired loans       5,800    
Allowance for credit losses       $ 0 $ 614 $ 663