Document and Entity Information (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Jan. 31, 2013
Mar. 22, 2013
Jul. 31, 2012
Document and Entity Information [Abstract]      
Entity Registrant Name CONNS INC    
Entity Central Index Key 0001223389    
Current Fiscal Year End Date --01-31    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 292.9
Entity Common Stock, Shares Outstanding   35,212,349  
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus FY    
Document Type 10-K    
Amendment Flag false    
Document Period End Date Jan. 31, 2013