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Notes Payable and Long-Term Debt - Schedule of Long-Term Debt Payable (Details)
$ in Thousands
Aug. 31, 2015
USD ($)
Debt Disclosure [Abstract]  
Long-term Debt, Repayments in 2016 $ 129,994
Long-term Debt, Repayments in 2017 149,932
Long-term Debt, Repayments in 2018 161,596
Long-term Debt, Repayments in 2019 150,098
Long-term Debt, Repayments in 2020 31,340
Long-term Debt, Repayments after 2020 670,400
Total long-term debt $ 1,293,360