Notes Payable, Long-Term Debt and Capital Lease Obligations (Details 2) - USD ($) $ in Thousands	May 31, 2016	Aug. 31, 2015
Notes Payable, Long-Term Debt and Capital Lease Obligations [Abstract]
Total notes payable, long-term debt and capital lease obligations	$ 2,150,913	$ 1,670,391
Less current installments of notes payable, long-term debt and capital lease obligations	359,885	323,833
Notes payable, long-term debt and capital lease obligations, less current installments	$ 1,791,028	$ 1,346,558