v3.26.1
Document And Entity Information - shares
 3 Months Ended
May 02, 2026
May 27, 2026
Document Information Line Items    
Entity Central Index Key 0001639300  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date May 02, 2026  
Document Fiscal Year Focus 2026  
Document Transition Report false  
Entity Registrant Name Ollie’s Bargain Outlet Holdings, Inc.  
Entity Incorporation, State or Country Code DE  
Entity File Number 001-37501  
Entity Tax Identification Number 80-0848819  
Entity Address, Address Line One 6295 Allentown Boulevard  
Entity Address, Address Line Two Suite 1  
Entity Address, City or Town Harrisburg  
Entity Address, State or Province PA  
Entity Address, Postal Zip Code 17112  
City Area Code 717  
Local Phone Number 657-2300  
Title of 12(b) Security Common Stock, $0.001 par value  
Trading Symbol OLLI  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Emerging Growth Company false  
Entity Small Business false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   60,453,292
Amendment Flag false  
Document Fiscal Period Focus Q1  
Current Fiscal Year End Date --01-30