Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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- Definition

Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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FINANCIAL INFORMATION FOR SUBSIDIARY GUARANTORS AND NON-GUARANTORS - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015	Dec. 15, 2016	Dec. 15, 2015	Oct. 13, 2015	Jan. 15, 2014
Condensed Financial Statements, Captions [Line Items]
Long-term debt	$ 1,409.7	$ 1,221.9
Senior Notes – 6.000%
Condensed Financial Statements, Captions [Line Items]
Debt instrument stated interest rate						6.00%
Senior Notes – 6.000% \| Senior Notes
Condensed Financial Statements, Captions [Line Items]
Debt instrument stated interest rate	6.00%	6.00%				6.00%
Long-term debt	$ 400.0	$ 400.0
Senior Notes – 5.250% \| Senior Notes
Condensed Financial Statements, Captions [Line Items]
Debt instrument stated interest rate	5.25%			5.25%
Long-term debt	$ 250.0	0.0
Senior Notes, 7.25% Due 2018
Condensed Financial Statements, Captions [Line Items]
Debt instrument stated interest rate							7.25%
Long-term debt							$ 200.0
Senior Notes, 6.625% Due 2020
Condensed Financial Statements, Captions [Line Items]
Debt instrument stated interest rate					6.625%
Long-term debt					$ 200.0
Reportable Legal Entities \| Parent
Condensed Financial Statements, Captions [Line Items]
Return of investments from affiliates, included in operating activities	$ (909.4)	$ 934.4	$ 255.5