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Restructuring (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Jul. 31, 2014 Position	Jul. 31, 2013	Apr. 30, 2014
Restructuring (Textual) [Abstract]
Total expected restructuring charge	$ 265.0
Restructuring costs incurred announcement-to-date	251.2
Reduction in positions due to restructuring	850
Total restructuring charges	2.8	5.2	20.8
Cost of products sold - restructuring	$ 0.1	$ 1.4

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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