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Income Taxes Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Income Tax Expense (Benefit)	$ 5.5	$ (0.2)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	29.00%	29.00%

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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