PENSION PLANS AND OTHER POST-RETIREMENT BENEFITS - Expected Future Benefit Payments (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014
Pension Plans
Expected benefit payments [Abstract]
2015	$ 9.9
2016	10.2
2017	10.6
2018	10.6
2019	11.2
2020 - 2024	58.7
Postretirement Plans
Expected benefit payments [Abstract]
2015	3.8
2016	3.8
2017	3.8
2018	3.8
2019	3.8
2020 - 2024	18.6
Prescription Drug Subsidy Receipts, Fiscal Year Maturity [Abstract]
2015	(0.2)
2016	(0.2)
2017	(0.2)
2018	(0.2)
2019	(0.3)
2020-2024	$ (1.3)

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Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of the prescription drug subsidy receipts to be received after the fifth fiscal year following the latest fiscal year.

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

-Publisher FASB

-Name Accounting Standards Codification

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Amount of the prescription drug subsidy receipts to be received in the next fiscal year following the latest fiscal year.

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Amount of the prescription drug subsidy receipts to be received in the fifth fiscal year following the latest fiscal year.

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Amount of the prescription drug subsidy receipts to be received in the fourth fiscal year following the latest fiscal year.

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Amount of the prescription drug subsidy receipts to be received in the third fiscal year following the latest fiscal year.

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Amount of the prescription drug subsidy receipts to be received in the second fiscal year following the latest fiscal year.

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