Notes Payable and Long-Term Debt - Schedule of Interest, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Debt Disclosure [Abstract]
Interest Expense	$ 171,239	$ 113,704	$ 70,659
Capitalized Interest	$ (6,900)	$ (30,300)	$ (57,300)