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EMPLOYEES' RETIREMENT PLANS (Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Aug. 31, 2020 | Aug. 31, 2019
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | $ 335 | $ 354
Interest cost | 892 | 926
Special termination benefits | 1,918 | 0
Settlements, curtailments and other | 1,314 | 0
Total net periodic benefit cost | 3,575 | 522
Net actuarial loss arising during measurement period | 3,642 | 2,823
Amortization of net actuarial gain | (3,232) | 0
Total recognized in other comprehensive income | 410 | 2,823
Total recognized in net periodic benefit cost and other comprehensive income | 3,985 | 3,345
Cost of Goods Sold |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | 335 | 354
Selling, General and Administrative Expenses |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Expected administrative expenses | 450 | 250
Interest cost | 892 | 926
Expected return on Plan assets | $ (1,334) | $ (1,008)

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