Quarterly report pursuant to Section 13 or 15(d)

Long-Term Indebtedness (Details)

v3.10.0.1
Long-Term Indebtedness (Details) - USD ($)
$ in Thousands
May 31, 2018
Aug. 31, 2017
Debt Instrument [Line Items]    
Total Senior Indebtedness $ 542,559 $ 565,059
Less: Current maturities of long-term debt (30,000) (30,000)
Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Net (2,552) (3,119)
Long-term debt 510,007 531,940
Line of Credit    
Debt Instrument [Line Items]    
Total Senior Indebtedness 255,000 277,500
Line of Credit | Senior Credit Facility - Revolver    
Debt Instrument [Line Items]    
Total Senior Indebtedness 0 0
Line of Credit | Senior Credit Facility - Term Loan    
Debt Instrument [Line Items]    
Total Senior Indebtedness 255,000 277,500
Senior Notes | 5.625% Senior Notes    
Debt Instrument [Line Items]    
Senior Notes, Noncurrent $ 287,559 $ 287,559