v3.8.0.1
Document and Entity Information - shares
3 Months Ended
May 05, 2018
May 25, 2018
Document And Entity Information    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date May 05, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q1  
Trading Symbol SPWH  
Entity Registrant Name SPORTSMAN'S WAREHOUSE HOLDINGS, INC.  
Entity Central Index Key 0001132105  
Current Fiscal Year End Date --02-02  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   42,833,871
Entity Current Reporting Status Yes