STOCKHOLDERS' EQUITY (Schedule of Components of Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Total
Beginning balance	$ 991,073	$ 916,214	$ 832,732
Ending balance	1,107,043	991,073	916,214
Total
Total
Beginning balance	(195,586)	(182,257)	(176,686)
Ending balance	(163,992)	(195,586)	(182,257)
Attributable to PriceSmart
Total
Beginning balance	(195,586)	(182,508)	(176,820)
Ending balance	(163,992)	(195,586)	(182,508)
Non-controlling Interests
Total
Beginning balance	0	251	134
Ending balance	0	0	251
Foreign currency translation adjustments
Total
Other comprehensive income (loss), before reclassifications	33,708	(19,031)	(7,720)
Foreign currency translation adjustments, Parent
Total
Other comprehensive income (loss), before reclassifications	33,708	(19,034)	(7,837)
Foreign currency translation adjustments, Non-controlling Interests
Total
Other comprehensive income (loss), before reclassifications	0	3	117
Defined benefit pension plans
Total
Other comprehensive income (loss), before reclassifications	(1,819)	(341)	(230)
Defined benefit pension plan, parent
Total
Other comprehensive income (loss), before reclassifications	(1,819)	(341)	(230)
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	(443)	6,170	2,252
Derivative Instruments, Parent
Total
Other comprehensive income (loss), before reclassifications	(443)	6,170	2,252
Derivative Instruments, Non-controlling Interests
Total
Other comprehensive income (loss), before reclassifications	0	0	0
Amount reclassified from accumulated other comprehensive loss
Total
Amounts reclassified from accumulated other comprehensive income (loss)	148	127	127
Amount reclassified from accumulated other comprehensive loss, Parent
Total
Amounts reclassified from accumulated other comprehensive income (loss)	148	127	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)