STOCKHOLDERS' EQUITY (Schedule of Components of Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2022
Total
Beginning balance	$ 1,107,043	$ 991,073	$ 916,214
Ending balance	1,122,965	1,107,043	991,073
Total
Total
Beginning balance	(163,992)	(195,586)	(182,257)
Ending balance	(164,590)	(163,992)	(195,586)
Attributable to PriceSmart
Total
Beginning balance	(163,992)	(195,586)	(182,508)
Ending balance	(164,590)	(163,992)	(195,586)
Non-controlling Interests
Total
Beginning balance	0	0	251
Ending balance	0	0	0
Foreign currency translation adjustments
Total
Other comprehensive income (loss), before reclassifications	693	33,708	(19,031)
Foreign currency translation adjustments, Parent
Total
Other comprehensive income (loss), before reclassifications	693	33,708	(19,034)
Foreign currency translation adjustments, Non-controlling Interests
Total
Other comprehensive income (loss), before reclassifications	0	0	3
Defined benefit pension plans
Total
Other comprehensive income (loss), before reclassifications	501	(1,819)	(341)
Defined benefit pension plan, parent
Total
Other comprehensive income (loss), before reclassifications	501	(1,819)	(341)
Defined benefit pension plans, Non-controlling Interests
Total
Other comprehensive income (loss), before reclassifications	0	0	0
Derivative Instruments
Total
Other comprehensive income (loss), before reclassifications	(2,189)	(443)	6,170
Derivative Instruments, Parent
Total
Other comprehensive income (loss), before reclassifications	(2,189)	(443)	6,170
Derivative Instruments, Non-controlling Interests
Total
Other comprehensive income (loss), before reclassifications	0	0	0
Amounts reclassified from accumulated other comprehensive loss
Total
Amounts reclassified from accumulated other comprehensive income (loss)	397	148	127
Amount reclassified from accumulated other comprehensive loss, Parent
Total
Amounts reclassified from accumulated other comprehensive income (loss)	397	148	127
Amounts reclassified from accumulated other comprehensive loss, Non-controlling Interests
Total
Amounts reclassified from accumulated other comprehensive income (loss)	$ 0	$ 0	0
Sale of Aeropost
Total
Amounts reclassified from accumulated other comprehensive income (loss)			(254)
Sale of Aeropost, Parent
Total
Amounts reclassified from accumulated other comprehensive income (loss)			0
Sale of Aeropost, Non-controlling Interests
Total
Amounts reclassified from accumulated other comprehensive income (loss)			$ (254)