CREDIT FACILITIES AND INDEBTEDNESS (Details) - Convertible Debt (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
CREDIT FACILITIES AND INDEBTEDNESS
Contractual interest expense	$ 2.5	$ 6.9	$ 16.4	$ 20.7
Discount amortization	$ 3.6	$ 9.3	$ 23.4	$ 27.3

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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-Name Accounting Standards Codification

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-Section 45

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-Subparagraph (b)

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

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-Name Accounting Standards Codification

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-Publisher SEC

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-Number 210

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