STOCKHOLDERS' EQUITY (Schedule of Components of Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands		3 Months Ended			12 Months Ended
		Nov. 30, 2021	Nov. 30, 2020		Aug. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, Attributable to PriceSmart		$ 915,345
Other comprehensive income (loss), Attributable to PriceSmart		(6,128)	$ 3,193
Balance, Attributable to PriceSmart		942,146			$ 915,345
Balance		916,214	832,732		832,732
Balance		942,146	867,291		916,214
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, Attributable to PriceSmart		(182,508)	(176,820)		(176,820)
Other comprehensive income (loss), Attributable to PriceSmart		(6,131)	3,162
Balance, Attributable to PriceSmart		(188,639)	(173,658)		(182,508)
Balance		(182,508)	(176,820)		(176,820)
Balance		(188,639)	(173,658)		(182,508)
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), Attributable to PriceSmart		(8,131)	2,761		(7,837)
Defined Benefit Pension Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), Attributable to PriceSmart	[1]	51	93		(230)
Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), Attributable to PriceSmart		1,949	308	[2]	2,252	[2]
Other comprehensive income (loss)		1,949
Sale Of Aeropost [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	[2]	(254)
AOCI Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		251	134		134
Balance			165		251
Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)		3	31		117
Reclassification From Other Comprehensive Income (Loss) Attributable To Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), Attributable to PriceSmart					127
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(182,257)	(176,686)		(176,686)
Balance		(188,639)	(173,493)		(182,257)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)		(8,128)	2,792		(7,720)
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	[1]	$ 51	93		(230)
Accumulated Derivative Instruments Including Portion Attributable To Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	[2]		$ 308		2,252
Reclassification From Other Comprehensive Income (Loss) Including Portion Attributable To Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)					$ 127

[1] Amounts reclassified from accumulated other comprehensive income (loss) related to the minimum pension liability are included in warehouse club and other operations in the Company's consolidated statements of income.

[2] Refer to Note 8 - Derivative Instruments and Hedging Activities.