FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total derivative contracts, net	$ 1,522	$ 4,492
Designated as Hedging Instrument [Member] | Prepaid expenses, deferred costs, and other current assets [Member] | Foreign Exchange Forward [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	3,822	3,930
Designated as Hedging Instrument [Member] | Deferred costs and other assets [Member] | Foreign Exchange Forward [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	1,125
Designated as Hedging Instrument [Member] | Deferred costs and other assets [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	275
Designated as Hedging Instrument [Member] | Accrued liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	(1,326)	(838)
Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	$ (974)	$ 0