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Commitments and Contingencies (Off-Balance Sheet Financial Instruments) (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Commitments to Extend Credit [Member]    
Loss Contingencies [Line Items]    
Contract amounts $ 10,285,535 $ 10,202,464
Letters of Credit [Member]    
Loss Contingencies [Line Items]    
Contract amounts $ 430,026 $ 400,505