XML 14 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information - shares
 6 Months Ended
Aug. 04, 2018
Sep. 01, 2018
Entity Registrant Name DILLARD'S, INC.  
Entity Central Index Key 0000028917  
Document Type 10-Q  
Document Period End Date Aug. 04, 2018  
Amendment Flag false  
Current Fiscal Year End Date --02-02  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Common Stock Class A    
Entity Common Stock, Shares Outstanding   23,460,949
Common Stock Class B    
Entity Common Stock, Shares Outstanding   4,010,401