v3.10.0.1
Document and Entity Information - shares
9 Months Ended
Nov. 03, 2018
Nov. 29, 2018
Document And Entity Information    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Nov. 03, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
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 Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Entity Common Stock, Shares Outstanding   42,938,385
Entity Current Reporting Status Yes