Employee Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
Aug. 31, 2013 United States Pension Plan [Member]	Aug. 31, 2013 United Kingdom Pension Plan [Member]	May 31, 2014 Pension Plans [Member]
Employee Benefit Plans (Details) [Line Items]
Pension Contributions	$ 1.7	$ 0.3	$ 8.3

The amount of cash or cash equivalents contributed by the entity to fund its pension plans.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

Name:	us-gaap_PensionContributions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration