BORROWINGS AND INDEBTEDNESS - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
Aug. 31, 2017	Aug. 31, 2016
Debt Disclosure [Abstract]
Letters of credit outstanding under borrowing facilities	$ 195,998	$ 168,663
Total outstanding debt	25,070	$ 27,230
CommercialPaperProgramBackedbySyndicatedLoan	$ 1,000,000

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant