PROPERTY AND EQUIPMENT (Narrative) (Details) - USD ($)	9 Months Ended
	May 31, 2016	Aug. 31, 2015
Property, Plant and Equipment [Line Items]
Accounts payable	$ 245,096,000	$ 241,978,000
Other accrued expenses	21,910,000	23,558,000
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Accounts payable	777,000	458,000
Other accrued expenses	$ 1,700,000	$ 1,500,000
Minimum [Member] | Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Minimum [Member] | Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life	10 years
Maximum [Member] | Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	15 years
Maximum [Member] | Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life	25 years