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Short-Term Borrowings (Tables)
 12 Months Ended
Dec. 31, 2022
Debt Disclosure [Abstract]  
Short-term borrowings
Short-term borrowings as of December 31 are summarized as follows: 
20222021
Securities sold under agreements to repurchase$12,232 $13,947 
Federal Home Loan Bank short-term advances700,000 — 
Total short-term borrowings$712,232 $13,947 
Average balances and cost of funds of short-term borrowings The average balances and cost of funds of short-term borrowings for the years ending December 31 are summarized as follows:
 Average BalancesCost of Funds
 202220212020202220212020
Federal Home Loan Bank short-term advances$175,370 $— $345,601 2.52 %— %1.09 %
Federal funds purchased97 747 363 3.97 0.33 — 
Securities sold under agreements to repurchase12,217 12,662 10,889 0.36 0.29 0.30 
Total short-term borrowings$187,684 $13,409 $356,853 2.38 %0.29 %1.07 %