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STOCKHOLDERS' EQUITY (Schedule of Components of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 28, 2019 | Feb. 28, 2018 | Feb. 28, 2019 | Feb. 28, 2018 | Aug. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Balance, Attributable to PriceSmart |  |  |  | $ 758,002 |  |  |  |
Other comprehensive income (loss), Attributable to PriceSmart |  | $ 4,374 | $ 5,218 | (8,873) |  | $ 3,809 |  |
Balance, Attributable to PriceSmart |  | 773,160 |  | 773,160 |  |  |  | $ 758,002
Balance |  | 766,082 | 732,309 | 758,638 |  | 708,767 |  | 708,767
Other comprehensive income (loss) |  | 4,352 | 5,218 | (8,894) |  | 3,809 |  |
Balance |  | 773,590 | 731,234 | 773,590 |  | 731,234 |  | 758,638
Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Balance, Attributable to PriceSmart |  |  |  | (121,216) |  | (110,059) |  | (110,059)
Other comprehensive income (loss), Attributable to PriceSmart |  | 4,352 | 5,218 | (8,894) |  | 3,809 |  |
Balance, Attributable to PriceSmart |  | (130,110) | (106,250) | (130,110) |  | (106,250) |  | (121,216)
Balance |  | (134,462) | (111,468) | (121,216) |  | (110,059) |  | (110,059)
Balance |  | (130,110) | (106,250) | (130,110) |  | (106,250) |  | (121,216)
Foreign Currency Translation Adjustments [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Other comprehensive income (loss), Attributable to PriceSmart |  |  |  | (8,276) |  | 2,313 |  | (12,890)
Defined Benefit Pension Plans [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Other comprehensive income (loss), Attributable to PriceSmart |  |  |  | 50 | [1] | 59 | [1] | (87)
Derivative Instruments [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Other comprehensive income (loss), Attributable to PriceSmart | [1] |  |  | (668) |  | 1,437 |  | 1,779
Reclassification From Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Amount reclassified from accumulated other comprehensive income (loss), Attributable to PriceSmart | [2] |  |  |  |  |  |  | 41
AOCI Attributable to Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Balance |  |  |  | (1) |  |  |  |
Balance |  | 20 |  | 20 |  |  |  | (1)
Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  |  |  | 21 |  |  |  | (1)
Accumulated Defined Benefit Plans Adjustment Attributable to Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  |  |  |  | [1] |  | [1] |
Accumulated Derivative Instruments Attributable to Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Other comprehensive income (loss) | [1] |  |  |  |  |  |  |
Reclassification From Other Comprehensive Income (Loss) Attributable To Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Amounts reclassified from accumulated other comprehensive income (loss) | [2] |  |  |  |  |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Balance |  |  |  | (121,217) |  | (110,059) |  | (110,059)
Balance |  | $ (130,090) | $ (106,250) | (130,090) |  | (106,250) |  | (121,217)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  |  |  | (8,255) |  | 2,313 |  | (12,891)
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  |  |  | 50 | [1] | 59 | [1] | (87)
Accumulated Derivative Instruments Including Portion Attributable To Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Other comprehensive income (loss) | [1] |  |  | $ (668) |  | $ 1,437 |  | 1,779
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) | [2] |  |  |  |  |  |  | $ 41
[1] | See Note 8 - Derivative Instruments and Hedging Activities.
[2] | 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.

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