Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2016
Feb. 10, 2017
Jun. 30, 2016
Entity Registrant Name REPUBLIC BANCORP INC /KY/    
Entity Central Index Key 0000921557    
Document Type 10-K    
Document Period End Date Dec. 31, 2016    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 270,193,563
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY    
Class A Common Stock      
Entity Common Stock, Shares Outstanding   18,608,917  
Class B Common Stock      
Entity Common Stock, Shares Outstanding   2,245,008