SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - OPERATIONS (Details)	6 Months Ended
	Jun. 30, 2022 segment item
Basis of Presentation
Number of reportable segments | segment	5
Number of banking centers	42
Kentucky
Basis of Presentation
Number of banking centers	28
Metropolitan Louisville
Basis of Presentation
Number of banking centers	18
Central Kentucky
Basis of Presentation
Number of banking centers	7
Georgetown
Basis of Presentation
Number of banking centers	1
Lexington
Basis of Presentation
Number of banking centers	5
Shelbyville
Basis of Presentation
Number of banking centers	1
Northern Kentucky
Basis of Presentation
Number of banking centers	3
Covington
Basis of Presentation
Number of banking centers	1
Crestview Hills
Basis of Presentation
Number of banking centers	1
Florence
Basis of Presentation
Number of banking centers	1
Southern Indiana
Basis of Presentation
Number of banking centers	3
Floyds Knobs
Basis of Presentation
Number of banking centers	1
Jeffersonville
Basis of Presentation
Number of banking centers	1
New Albany
Basis of Presentation
Number of banking centers	1
Metropolitan Tampa, Florida
Basis of Presentation
Number of banking centers	7
Metropolitan Cincinnati, Ohio
Basis of Presentation
Number of banking centers	2
Metropolitan Nashville, Tennessee
Basis of Presentation
Number of banking centers	2
Core Banking Activities
Basis of Presentation
Number of reportable segments | segment	3
Core Banking Activities | Minimum
Basis of Presentation
Period of loan expected to remain in warehouse line	15 days
Core Banking Activities | Maximum
Basis of Presentation
Period of loan expected to remain in warehouse line	30 days
Republic Processing Group
Basis of Presentation
Number of reportable segments | segment	2