Notes Payable, Long-Term Debt and Capital Lease Obligations (Details 2) - USD ($) $ in Thousands	Aug. 31, 2015	Aug. 31, 2014
Notes Payable, Long-Term Debt and Capital Lease Obligations [Abstract]
Total notes payable, long-term debt and capital lease obligations	$ 1,670,391	$ 1,682,545
Current installments of notes payable, long-term debt and capital lease obligations	323,833	12,960
Notes payable, long-term debt and capital lease obligations, less current installments	$ 1,346,558	$ 1,669,585