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Derivative Financial Instruments (Details 5) - U.S. Treasury and Federal agencies securities - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Overnight and Continuous    
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]    
Repurchase agreements $ 191,470 $ 141,420
Up to 30 Days    
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]    
Repurchase agreements $ 3,260 $ 2,140