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Restructuring and Impairment Activities (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Feb. 28, 2015	Mar. 01, 2014	Nov. 30, 2013	Feb. 28, 2015	Mar. 01, 2014
Restructuring and Related Activities
Restructuring and Impairment Expenses	$ 1.9us-gaap_RestructuringSettlementAndImpairmentProvisions	$ 1.1us-gaap_RestructuringSettlementAndImpairmentProvisions		$ 1.9us-gaap_RestructuringSettlementAndImpairmentProvisions	$ 5.1us-gaap_RestructuringSettlementAndImpairmentProvisions
Tangible Asset Impairment Charges			$ 4.0us-gaap_TangibleAssetImpairmentCharges

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- Definition

The aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period. Generally, these items are either unusual or infrequent, but not both (in which case they would be extraordinary items).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Definition

The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230

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