CONSOLIDATED STATEMENTS OF CASH FLOWS - Unaudited (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
OPERATING ACTIVITIES
Net Income	$ 10,061us-gaap_ProfitLoss	$ 8,514us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization from continuing operations	18,142	17,168
Stock-based compensation expense	2,043us-gaap_ShareBasedCompensation	1,677us-gaap_ShareBasedCompensation
Gain on sales of land and real estate investments	(123)	(95)
Changes in operating assets and liabilities:
Accrued income and other assets	1,687	1,797
Accounts payable, accrued expenses and prepaid rent	(10,349)	(11,320)
Other	(40)	(101)
NET CASH PROVIDED BY OPERATING ACTIVITIES	21,421	17,640
INVESTING ACTIVITIES
Real estate development	(18,036)	(21,231)
Real estate improvements	(2,790)us-gaap_PaymentsForCapitalImprovements	(4,258)us-gaap_PaymentsForCapitalImprovements
Proceeds from sales of land and real estate investments	158	3,471
Repayments on mortgage loans receivable	29egp_RepaymentsOnMortgageLoansReceivable	39egp_RepaymentsOnMortgageLoansReceivable
Changes in accrued development costs	(2,257)egp_ChangesInAccruedDevelopmentCosts	3,413egp_ChangesInAccruedDevelopmentCosts
Changes in other assets and other liabilities	(3,550)	(2,354)
NET CASH USED IN INVESTING ACTIVITIES	(26,446)	(20,920)
FINANCING ACTIVITIES
Proceeds from unsecured bank credit facilities	139,931us-gaap_ProceedsFromBankDebt	64,078us-gaap_ProceedsFromBankDebt
Repayments on unsecured bank credit facilities	(124,972)us-gaap_RepaymentsOfBankDebt	(53,671)us-gaap_RepaymentsOfBankDebt
Repayments on secured debt	(63,119)us-gaap_RepaymentsOfSecuredDebt	(5,532)us-gaap_RepaymentsOfSecuredDebt
Proceeds from unsecured debt	75,000	0
Debt issuance costs	(562)us-gaap_PaymentsOfDebtIssuanceCosts	(21)us-gaap_PaymentsOfDebtIssuanceCosts
Distributions paid to stockholders (not including dividends accrued on unvested restricted stock)	(18,984)us-gaap_PaymentsOfOrdinaryDividends	(17,322)us-gaap_PaymentsOfOrdinaryDividends
Proceeds from common stock offerings	52	19,602
Proceeds from dividend reinvestment plan	63	50
Other	(2,222)	(2,032)
NET CASH PROVIDED BY FINANCING ACTIVITIES	5,187	5,152
INCREASE IN CASH AND CASH EQUIVALENTS	162	1,872
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	11	8
CASH AND CASH EQUIVALENTS AT END OF PERIOD	173	1,880
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid for interest, net of amount capitalized of $1,179 and $1,110 for 2015 and 2014, respectively	$ 9,700us-gaap_InterestPaidNet	$ 9,701us-gaap_InterestPaidNet

The net cash inflow from (outflow for) expenditures for a real estate project that has not yet been completed.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The amount of cash paid for interest during the period net of cash paid for interest that is capitalized.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example, cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities).

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The cash outflow for acquisition of or capital improvements to properties held for investment (operating, managed, leased) or for use.

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The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Cash outflow in the form of ordinary dividends to common shareholders, preferred shareholders and noncontrolling interests, generally out of earnings.

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Payments to develop real estate assets is the process of adding improvements on or to a parcel of land. Such improvements may include drainage, utilities, subdividing, access, buildings, and any combination of these elements; and are generally classified as cash flow from investing activities.

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The cash inflow from bank borrowing during the year.

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The cash inflow from the additional capital contribution to the entity.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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Cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period.

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The cash outflow to settle a bank borrowing during the year.

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