REVENUE RECOGNITION (Contract Performance Liabilities) (Details) - USD ($) $ in Thousands |
May 31, 2021 |
Aug. 31, 2020 |
|---|---|---|
| Deferred Membership Income [Member] | ||
| Contract with Customer, Asset and Liability [Line Items] | ||
| Contract Liabilities | $ 26,457 | $ 23,051 |
| Other Contract Performance Liabilities [Member] | ||
| Contract with Customer, Asset and Liability [Line Items] | ||
| Contract Liabilities | $ 5,895 | $ 5,190 |