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Loans and Allowance for Credit Losses Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Receivables [Abstract]            
ACL - loans $ 248,564   $ 249,001      
ACL - OBS credit exposure 14,323   14,533      
Total ACL $ 262,887 $ 257,638 $ 263,534 $ 269,805 $ 280,259 $ 291,940