XML 12 R1.htm IDEA: XBRL DOCUMENT v3.5.0.2
Document and Entity Information - shares
6 Months Ended
Sep. 24, 2016
Oct. 26, 2016
Document and Entity Information    
Entity Registrant Name Boot Barn Holdings, Inc.  
Entity Central Index Key 0001610250  
Document Type 10-Q  
Document Period End Date Sep. 24, 2016  
Amendment Flag false  
Current Fiscal Year End Date --04-01  
Entity Current Reporting Status Yes  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   26,487,002
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q2