SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - CREDIT SOLUTIONS AND OREO (Details)	12 Months Ended
Dec. 31, 2020
Minimum
Other Real Estate Owned
Selling cost for OREO expressed as a percentage of each property's fair value	10.00%
Maximum
Other Real Estate Owned
Selling cost for OREO expressed as a percentage of each property's fair value	13.00%

Represents the selling cost for Other Real Estate Owned (OREO) expressed as a percentage of each property's fair value.

No definition available.

Name:	rbcaa_SellingCostForOREOExpressedAsPercentageOfEachPropertysFairValue
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration