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Borrowings, Short-term Debt (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Short-term Debt [Abstract]    
Repurchase agreements $ 271,088 $ 355,862
Federal funds purchased 500 500
Total short-term debt $ 271,588 $ 356,362
Federal Funds Purchased [Member]    
Short-term Debt [Abstract]    
Average interest rate 0.05%  
Repurchase Agreements [Member]    
Short-term Debt [Abstract]    
Average interest rate 0.37%  
Maximum balance for repurchase agreements at any month-end $ 371,300  
Average balance of repurchase agreements $ 333,400