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INCOME TAXES (Narrative) (Details) | 12 Months Ended |
--- | --- | ---
Aug. 31, 2021 USD ($) country | Aug. 31, 2020 USD ($) | Aug. 31, 2019 USD ($) | Aug. 31, 2018 USD ($)
Income Tax Contingency [Line Items] |  |  |  |
Provision for income taxes, percentage | 33.30% | 32.50% | 33.80% |
Favorable impact due to greater portion of income falling into lower tax jurisdiction | 2.50% |  |  |
Unfavorable impact from nonrecurrence of changes in income tax liabilities from uncretain tax position | 1.80% |  |  |
Unfavorable net impact resulting from the U.S. Tax Reform Transition Tax | 0.40% |  |  |
Unfavorable impact due to valuation allowances on deferred tax assets from foreign tax credits, percent | 0.40% |  |  |
Deferred Tax Assets, Net, Foreign | $ 19,500,000 | $ 16,900,000 |  |
Operating loss carryforwards (NOLs), annual limitation amount | 6,100,000 |  |  |
Undistributed foreign earnings | 254,500,000 | 177,500,000 |  |
Unrecognized tax benefits | 3,911,000 | 4,573,000 | $ 6,490,000 | $ 7,005,000
Deferred income taxes that could reduce unrecognized tax benefits | 1,500,000 |  |  |
Timing Adjustments | 400,000 |  |  |
Unrecognized tax benefit, net amount if recognized would favorably affect the effective tax rate | 3,500,000 |  |  |
Expected change in unrecognized tax benefits reduction of taxes payable | 900,000 |  |  |
Income taxes receivable | 30,363,000 | 31,060,000 |  |
Income tax interest and/or penalties accrued | $ 1,600,000 | 2,000,000.0 |  |
Number of countries that require the Company to pay taxes based on a percentage of sales rather than income | country | 2 |  |  |
Florida State Jurisdiction [Member] | Aeropost, Inc [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Operating loss carryforwards | $ 15,700,000 |  |  |
NOL expected to expire | 11,100,000 |  |  |
Domestic Tax Authority [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Operating loss carryforwards | 10,300,000 |  |  |
State [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Operating loss carryforwards | 15,700,000 |  |  |
Unknown Country [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Deferred tax assets, net | 3,300,000 | 2,800,000 |  |
Income taxes receivable | $ 11,000,000.0 | $ 10,400,000 | $ 11,000,000.0 |

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