CREDIT FACILITIES AND INDEBTEDNESS (Details) - Convertible Debt (USD $) In Millions, unless otherwise specified	3 Months Ended
Dec. 31, 2013	Dec. 31, 2012
CREDIT FACILITIES AND INDEBTEDNESS
Contractual interest expense	$ 6.9	$ 6.9
Discount amortization	$ 9.8	$ 8.9
Remaining discount amortization period (in months)	4 months

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

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-Section 45

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Name:	us-gaap_AmortizationOfDebtDiscountPremium
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration