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EMPLOYEES' RETIREMENT PLANS (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Aug. 31, 2020 | Aug. 31, 2019 | Aug. 31, 2018
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Pension curtailment | $ 3.2 |  |
BRP plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Deferred compensation liability | 47.0 | $ 45.7 |
Current value of segregated assets | 60.8 | 56.3 |
Net holding gain on segregated assets | 6.0 | 3.3 | $ 9.3
Other Long-term Liabilities | BRP plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Deferred compensation liability | 40.6 | 39.9 |
Accrued Expenses and Other Payables | BRP plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Deferred compensation liability | 6.4 | 5.8 |
United States |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Compensation expense under defined contribution profit sharing and savings plan and BRP Plan | $ 37.3 | $ 32.9 | $ 27.3

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