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Employee Benefit Plans (Details) - Schedule of targeted weighted average asset allocations	12 Months Ended
	May 31, 2016
U.S. Pension Plan [Member]
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Targeted asset allocation	100.00%
U.S. Pension Plan [Member] | Equity Securities [Member]
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Targeted asset allocation	30.00%
U.S. Pension Plan [Member] | Debt and cash equivalent [Member]
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Targeted asset allocation	70.00%
U.S. Pension Plan [Member] | Real estate and other [Member]
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Targeted asset allocation	0.00%
UK Pension Plan [Member]
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Targeted asset allocation	100.00%
UK Pension Plan [Member] | Equity Securities [Member]
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Targeted asset allocation	40.00%
UK Pension Plan [Member] | Debt and cash equivalent [Member]
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Targeted asset allocation	30.00%
UK Pension Plan [Member] | Real estate and other [Member]
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Targeted asset allocation	30.00%

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- References

No definition available.

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- Definition

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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