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Restructuring (Details Textual) $ in Millions	12 Months Ended
	Apr. 30, 2015 USD ($) Position	Apr. 30, 2014 USD ($)	Apr. 30, 2013 USD ($)
Restructuring (Textual) [Abstract]
Restructuring costs incurred announcement-to-date	$ 263.8
Reduction in positions due to restructuring | Position	850
Total restructuring charges	$ 15.4	$ 20.8	$ 38.8
Cost of products sold - restructuring and merger and integration	$ 1.1	$ 5.1	$ 10.0

X

- Definition

Amounts charged against cost of products sold in the period for incurred and estimated costs, primarily related to long-lived asset, production start-up and inventory-related charges, associated with exit from or disposal of business activities or restructurings pursuant to a program that is planned and controlled by management, and materially changes either the scope of a business undertaken by an entity, or the manner in which the business is conducted.

+ References

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Restructuring.

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- Definition

Amount of costs incurred to date for the specified restructuring cost.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 420



-SubTopic 10



-Section 50



-Paragraph 1



-Subparagraph (b)



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-Name Staff Accounting Bulletin (SAB)



-Number Topic 5



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- Definition

The expected number of positions to be eliminated as a result of restructuring activities.

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- 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.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



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