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Document And Entity Information - USD ($)
 12 Months Ended
Aug. 31, 2022
Oct. 25, 2022
Feb. 28, 2022
Document And Entity Information [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Aug. 31, 2022    
Document Transition Report false    
Entity File Number 000-22793    
Entity Registrant Name PriceSmart, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 33-0628530    
Entity Address, Address Line One 9740 Scranton Road    
Entity Address, City or Town San Diego    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92121    
City Area Code 858    
Local Phone Number 404-8800    
Entity Central Index Key 0001041803    
Current Fiscal Year End Date --08-31    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Title of 12(b) Security Common Stock, $0.0001 par value    
Trading Symbol PSMT    
Security Exchange Name NASDAQ    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
ICFR Auditor Attestation Flag true    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Public Float     $ 1,822,456,943
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   30,904,826  
Documents Incorporated by Reference DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Company’s definitive Proxy Statement for the Annual Meeting of Stockholders to be held on February 3, 2023 are incorporated by reference into Part III of this Form 10-K. 		   
Auditor Firm ID 42    
Auditor Location San Diego, California    
Auditor Name Ernst & Young LLP