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SHORT-TERM BORROWINGS (Tables)
 12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Summary of the Use of Short-Term Borrowings The following table summarizes these short-term borrowings at and for the years ended December 31, 2019, 2018 and 2017.
 
201920182017
Balance at year-end$146,600  $55,000  $50,000  
Weighted average interest rate at year-end1.87 %2.76 %1.21 %
Average balance during the year$23,171  $71,457  $54,610  
Average interest rate during the year2.20 %2.09 %1.08 %
Maximum month-end balance during the year$146,600  $103,000  $72,000  
Summary of the Use of Securities Sold Under Agreements to Repurchase The following table provides additional details for repurchase agreements at and for the years ended December 31, 2019, 2018 and 2017.
 
201920182017
Balance at year-end$8,269  $9,069  $43,576  
Weighted average interest rate at year-end1.31 %1.22 %0.56 %
Average balance during the year$8,830  $9,715  $43,205  
Average interest rate during the year1.28 %0.82 %0.45 %
Maximum month-end balance during the year$12,774  $14,591  $55,270  
Fair value of securities underlying the agreements at year-end13,062  17,942  53,485