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Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2010	Sep. 30, 2009	Sep. 30, 2008	Sep. 30, 2007
Income Tax Expense (Benefit)	$ 18.0	$ 8.8	$ 7.9
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	0.8
Income Tax Examination, Year under Examination				2010	2009	2008	2007
Undistributed foreign earnings	58.1
Accrued interest related to uncertain tax positions	0.7	0.9
Income Tax Examination, Penalties and Interest Expense	$ 0
State and Local Jurisdiction [Member] | Minimum [Member]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2015
State and Local Jurisdiction [Member] | Maximum [Member]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2033
Internal Revenue Service (IRS) [Member] | Minimum [Member]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2031
Internal Revenue Service (IRS) [Member] | Maximum [Member]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2032

X

- Definition

Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

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- Definition

The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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Tax year being audited in the income tax examination, in CCYY format.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format.

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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Amount of interest expense accrued for an underpayment of income taxes.

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