Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT LONG-TERM DEBT - Long-Term Debt (Details)

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LONG-TERM DEBT LONG-TERM DEBT - Long-Term Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Sep. 30, 2015
Debt Instrument [Line Items]    
Long-term debt $ 872,554 $ 902,954
Less current maturities (27,747) (11,737)
Total long-term debt and capital lease obligations, excluding current maturities 844,807 891,217
Revolving credit facilities    
Debt Instrument [Line Items]    
Long-term debt 608,000 884,254
Senior secured term loan    
Debt Instrument [Line Items]    
Long-term debt 246,449 0
Notes payable to banks    
Debt Instrument [Line Items]    
Long-term debt 5,301 8,506
Short-term borrowings    
Debt Instrument [Line Items]    
Long-term debt 8,617 5,199
Capital lease obligations    
Debt Instrument [Line Items]    
Long-term debt $ 4,187 $ 4,995