PROPERTY AND EQUIPMENT (Narrative) (Details) - USD ($)	12 Months Ended
	Aug. 31, 2019	Aug. 31, 2018
Property, Plant and Equipment [Line Items]
Accounts payable	$ 286,219,000	$ 255,739,000
Other accrued expenses	32,442,000	28,281,000
Construction In Progress [Member]
Property, Plant and Equipment [Line Items]
Accounts payable	322,000	81,000
Other accrued expenses	$ 6,300,000	$ 1,400,000
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