Quarterly report pursuant to Section 13 or 15(d)

Long-Term Indebtedness (Details)

v3.19.1
Long-Term Indebtedness (Details) - USD ($)
$ in Thousands
3 Months Ended
Feb. 28, 2019
Aug. 31, 2018
Debt Instrument [Line Items]    
Total Senior Indebtedness $ 487,559 $ 535,059
Less: Current maturities of long-term debt (30,000) (30,000)
Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Net (1,986) (2,364)
Long-term debt 455,573 502,695
Line of Credit    
Debt Instrument [Line Items]    
Total Senior Indebtedness 200,000 247,500
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 200,000 247,500
Senior Notes | 5.625% Senior Notes    
Debt Instrument [Line Items]    
Senior Notes, Noncurrent 287,559 $ 287,559
Starting on June 30, 2017 | Senior Credit Facility - Term Loan    
Debt Instrument [Line Items]    
Debt Instrument, Periodic Payment, Principal 7,500  
Debit Instrument, Prepayment, Principal $ 32,500