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Employee Benefit Plans (Details) - Schedule of accumulated benefit obligation in excess of plan assets - USD ($) $ in Millions	May. 31, 2015	May. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Projected benefit obligations	$ 173.1	$ 180.5
Accumulated benefit obligations	172.2	179.5
Fair value of plan assets	$ 173.7	$ 188.6

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- Definition

If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 715



-SubTopic 20



-Section 55



-Paragraph 17



-URI http://asc.fasb.org/extlink&oid=58242635&loc=d3e4179-114921



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- Definition

If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 715



-SubTopic 20



-Section 55



-Paragraph 17



-URI http://asc.fasb.org/extlink&oid=58242635&loc=d3e4179-114921



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



-Publisher FASB



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-SubTopic 20



-Section 50



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- Definition

If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 715



-SubTopic 20



-Section 50



-Paragraph 3



-Subparagraph (b)



-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2417-114920



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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 715



-SubTopic 20



-Section 55



-Paragraph 17



-URI http://asc.fasb.org/extlink&oid=58242635&loc=d3e4179-114921

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