FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Level 1 [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	$ 0	$ 0
Level 1 [Member] | Accrued liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	0	0
Level 1 [Member] | Other long-term liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	0	0
Level 2 [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	1,586	3,119
Level 2 [Member] | Accrued liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	1,586	1,705
Level 2 [Member] | Other long-term liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	0	1,414
Level 3 [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	0	0
Level 3 [Member] | Accrued liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	0	0
Level 3 [Member] | Other long-term liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	0	0
Carrying Amount [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	1,586	3,119
Carrying Amount [Member] | Accrued liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	1,586	1,705
Carrying Amount [Member] | Other long-term liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	0	1,414
Estimated Fair Value [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	1,586	3,119
Estimated Fair Value [Member] | Accrued liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	1,586	1,705
Estimated Fair Value [Member] | Other long-term liabilities [Member] | Interest Rate Swap [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability contracts	$ 0	$ 1,414