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Income Taxes (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Nov. 30, 2011	Nov. 30, 2010
Income Taxes [Abstract]
Tax loss related to investment in subsidiary	$ 291
Tax benefit related to investment in subsidiary	102
Effective tax rate from continuing operations	(320.70%)	31.10%
Effective tax rate from Discontinued Operation	35.90%	(1.90%)
Net Income tax payments (refunds)	12.5	(1.9)
Gross unrecognized tax benefits	$ 10.0	$ 20.4

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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