v3.19.1
Document and Entity Information - shares
3 Months Ended
May 04, 2019
May 31, 2019
Document And Entity Information    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date May 04, 2019  
Document Fiscal Year Focus 2020  
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 --02-01  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Entity Common Stock, Shares Outstanding   43,099,213
Entity Current Reporting Status Yes