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New Authoritative Accounting Guidance (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Allowance for loan losses decrease $ 436,898 $ 458,655 $ 362,510 $ 359,202
Adjustment due to adoption of ASUs 6,511,581 6,400,802 5,096,384 5,084,066
Retained Earnings        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Adjustment due to adoption of ASUs $ 1,300,980 1,218,445 $ 945,225 $ 883,645
Revision of Prior Period, Accounting Standards Update, Adjustment        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Allowance for loan losses decrease   (1,400)    
Cumulative Effect, Period of Adoption, Adjustment        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Allowance for loan losses decrease   (1,368)    
Adjustment due to adoption of ASUs   990    
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Adjustment due to adoption of ASUs   $ 990