The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Note 7 - Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013	Aug. 31, 2013 Off-Market Favorable Lease [Member]	May 31, 2013 Off-Market Favorable Lease [Member]	Feb. 28, 2014 In Process Research and Development [Member]
Note 7 - Other Intangible Assets (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life					8 years	6 years
Impairment of Intangible Assets (Excluding Goodwill)							$ 0.2
Amortization of Intangible Assets	$ 13.2	$ 12.4	$ 39.6	$ 37.2