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Note 13 - Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended	12 Months Ended
	Aug. 31, 2011	Aug. 19, 2011	May 31, 2013	Aug. 31, 2012
Effective Income Tax Rate, Continuing Operations	38.30%	(72.60%)	37.80%
Deferred Tax Liabilities, Intangible Assets (in Dollars)				$ 291.9
Deferred Tax Assets, Net (in Dollars)				$ 232.0

- Definition

Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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- Definition

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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