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LONG-TERM DEBT - Senior Secured Notes (Details) (USD $)	1 Months Ended
LONG-TERM DEBT - Senior Secured Notes (Details) (USD $)	Mar. 31, 2012	Sep. 30, 2014	Nov. 30, 2013	Sep. 30, 2013	Oct. 31, 2009
Debt Instrument [Line Items]
Accrued interest		8,659,000us-gaap_InterestPayableCurrent		$ 23,296,000us-gaap_InterestPayableCurrent
Senior Secured Notes \| 2009 11 1/2% Second Lien Senior Secured Notes
Debt Instrument [Line Items]
Loan face amount					200,000,000.0
Note stated interest rate		11.50%		11.50%	11.50%
Debt extinguished	199,800,000
Debt outstanding before discount	200,000		200,000
Accrued interest				10,000
Senior Secured Notes \| 2012 11 1/2% Second Lien Senior Secured Notes
Debt Instrument [Line Items]
Loan face amount	199,800,000
Note stated interest rate	11.50%	11.50%		11.50%
Ultimate premium amount	0
Accrued interest				$ 9,600,000

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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