Notes Payable, Long-Term Debt and Capital Lease Obligations (Details 2) - USD ($) $ in Thousands	Aug. 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	$ 2,119,822	$ 1,658,784
Current installments of notes payable, long-term debt and capital lease obligations	45,810	322,966
Notes payable, long-term debt and capital lease obligations, less current installments	$ 2,074,012	$ 1,335,818