DERIVATIVE FINANCIAL INSTRUMENTS, Fair Value of Derivative Instruments in the Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Sep. 30, 2015
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Accrued Expenses and Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of asset derivatives	$ 0	$ 0
Fair value of liability derivatives	765	885
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Other Long-term Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of asset derivatives	0	0
Fair value of liability derivatives	1,045	513
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Accrued Expenses and Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of asset derivatives	0	0
Fair value of liability derivatives	486	8
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of asset derivatives	423	14
Fair value of liability derivatives	$ 0	$ 0