Organization and Basis of Presentation (Details)	3 Months Ended
Oct. 31, 2013 Country Discipline Subsidiary Clients
Organization and Basis of Presentation [Abstract]
Number of wholly owned and majority owned operating subsidiaries	19
Number of countries in which the company operates	12
Number of disciplines	80
Number of projects for clients	50,000
Minimum number of countries in which the company completed projects	120

Represents the minimum number of countries in which the company completed projects.

No definition available.

Name:	eei_NumberOfCountriesInWhichCompanyCompletedProjectsMinimum
Namespace Prefix:	eei_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The number of scientific, engineering, health and social disciplines the entity's staff represents.

No definition available.

The number of projects the entity has completed for a wide variety of clients.

No definition available.

Name:	eei_NumberOfProjectsForClients
Namespace Prefix:	eei_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the number of wholly owned and majority owned operating subsidiaries in which the Company has direct and indirect ownership.

No definition available.

Name:	eei_NumberOfWhollyOwnedAndMajorityOwnedOperatingSubsidiaries
Namespace Prefix:	eei_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

The number of countries in which the entity operates as of balance sheet date.

No definition available.

Name:	us-gaap_NumberOfCountriesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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Data Type:	xbrli:stringItemType
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