EARNINGS PER SHARE (Schedule of the Computation of Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2023	Feb. 28, 2022
Earnings Per Share [Abstract]
Net income attributable to PriceSmart, Inc.	$ 31,347	$ 31,461	$ 64,252	$ 61,972
Less: Allocation of income to unvested stockholders	(51)	(78)	(627)	(600)
Net income attributable to PriceSmart, Inc. available for distribution	$ 31,296	$ 31,383	$ 63,625	$ 61,372
Basic weighted average shares outstanding (in shares)	30,741	30,578	30,727	30,565
Add dilutive effect of performance stock units (two-class method) (in shares)	19	4	13	28
Diluted average shares outstanding (in shares)	30,760	30,582	30,740	30,593
Basic net income per share (in dollars per share)	$ 1.02	$ 1.03	$ 2.07	$ 2.01
Diluted net income per share (in dollars per share)	$ 1.02	$ 1.03	$ 2.07	$ 2.01