SUBSEQUENT EVENTS (Details) (USD $)	Sep. 30, 2011
SubsequentEventsAbstract
Amount of loan application	$ 54,000,000
Non-recourse first mortgage loan fixed interest rate	4.09%
Term of non-recourse first mortgage loan (in years)	10
Loan amortization schedule term (in years)	20
Number of square feet in properties securing the loan (in square feet)	1,400,000

The amortization period (in years) of a mortgage debt instrument that will be executed by the Company at a future date.

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Namespace Prefix:	egp
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	instant

- Definition

The face value of a mortgage debt instrument that will be executed by the Company at a future date.

+ Details

Name:	egp_MortgageLoanApplicationFaceValue
Namespace Prefix:	egp
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The square feet of properties securing a mortgage debt instrument that will be executed by the Company at a future date.

+ Details

Name:	egp_MortgageLoanApplicationSecuredProperties
Namespace Prefix:	egp
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The term (in years) of a mortgage debt instrument that will be executed by the Company at a future date.

+ Details

Name:	egp_MortgageLoanApplicationTerm
Namespace Prefix:	egp
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	instant

- Definition

Interest rate stated in the contractual debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_SubsequentEventsAbstract
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration