PROPERTY AND EQUIPMENT, NET Property Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013	Aug. 31, 2013
Property, Plant and Equipment [Line Items]
Document Fiscal Year Focus			2014
Document Period End Date			May 31, 2014
Property, Plant and Equipment, Gross	$ 543,806		$ 543,806		$ 471,264
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(147,057)		(147,057)		(132,786)
Property, Plant and Equipment, Net	396,749		396,749		338,478
Depreciation and amortization expense	7,139	6,228	20,932	17,943
Total interest capitalized	4,459		4,459		4,475
Interest expense capitalized	452	1,008	945	1,289
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life, Minimum			10 years
Property, Plant and Equipment, Gross	243,996		243,996		228,257
Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life, Minimum			3 years
Property, Plant and Equipment, Gross	141,579		141,579		119,242
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	34,732		34,732		23,657
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 123,499		$ 123,499		$ 100,108
End of Useful Life [Member] | Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life, Minimum			25 years
End of Useful Life [Member] | Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life, Minimum			15 years