Debt instrument maturity month and year.

No definition available.

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Namespace Prefix:	dea_
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Balance Type:	na
Period Type:	duration

- Definition

Increase in borrowing capacity.

+ References

No definition available.

+ Details

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Namespace Prefix:	dea_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Margin spread percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	dea_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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- Definition

The average effective interest rate during the reporting period.

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Balance Type:	na
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Date the debt instrument was issued, in YYYY-MM-DD format.

+ References

+ Details

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Period Type:	duration

- Definition

Amount of principal of debt issued.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

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Balance Type:	na
Period Type:	duration

- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ References

+ Details

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- Definition

Latest date the outstanding debt instruments are required to be repaid, in YYYY-MM-DD format.

+ References

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- Definition

Earliest date the outstanding debt instruments are required to be repaid, in YYYY-MM-DD format.

+ References

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Date the entity entered into the derivative contract, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Nominal or face amount used to calculate payment on derivative.

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Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

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- Definition

Amount of increase (decrease) of the credit facility.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

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- Definition

The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

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Debt - Additional Information (Detail)													12 Months Ended
Debt - Additional Information (Detail)	Jan. 08, 2025	Dec. 23, 2024 USD ($) Swap	Aug. 06, 2024 USD ($)	Jul. 08, 2024 USD ($)	Jun. 03, 2024 USD ($)	May 29, 2024 USD ($)	Apr. 01, 2024 USD ($)	Jan. 23, 2024	Jan. 02, 2024	Jul. 20, 2023 USD ($)	May 30, 2023	Feb. 03, 2023 USD ($) Swap	Dec. 31, 2024 USD ($) Swap	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 23, 2023 USD ($) Swap
Debt Instrument [Line Items]
Net carrying value of real estate collateralizing the mortgage													$ 216,900,000	$ 325,900,000
Loan, Principal Outstanding													1,605,348,000
Loan, interest rate											0.10%
Mortgage note obligation													64,298,000	20,002,000	$ 10,899,000
Margin spread percentage									1.00%
Interest Rate Swaps [Member]
Debt Instrument [Line Items]
Number of forward interest rate swaps \| Swap												2
Aggregate notional value of interest rate swaps										$ 100,000,000		$ 200,000,000	200,000,000			$ 100,000,000
Forward swaps effective date												Jun. 30, 2023
Debt Instrument, Maturity Date, Description												The third swap, with a notional value of $100.0 million, became effective in September 2023. For more information on our interest rate swaps, see Note 7 to the Consolidated Financial Statements.
Amount available under revolving credit facility										50,000,000
SOFR [Member]
Debt Instrument [Line Items]
Number of forward interest rate swaps \| Swap		3										3
Aggregate notional value of interest rate swaps		$ 100,000,000										$ 100,000,000
Forward swaps effective date		Dec. 23, 2024
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Amount available under revolving credit facility										50,000,000
2024 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Amount available under revolving credit facility													$ 125,300,000
Line of Credit Facility, Description													2024 revolving credit facility has two six-month as-of-right extension options subject to certain conditions and the payment of an extension fee.
2024 Revolving Credit Facility [Member] \| Interest Rate Swaps [Member]
Debt Instrument [Line Items]
Number of forward interest rate swaps \| Swap																1
Aggregate notional value of interest rate swaps																$ 25,500,000
Forward swaps effective date													Jun. 23, 2023
2024 Revolving Credit Facility [Member] \| SOFR [Member]
Debt Instrument [Line Items]
Effective interest rate													1.00%
Loan, interest rate													0.10%
2024 Revolving Credit Facility [Member] \| Adjusted DSS [Member]
Debt Instrument [Line Items]
Effective interest rate													0.10%
2024 Revolving Credit Facility [Member] \| Maximum [Member] \| SOFR [Member]
Debt Instrument [Line Items]
Effective interest rate													0.80%
2024 Revolving Credit Facility [Member] \| Maximum [Member] \| Adjusted DSS or Term SOFR [Member]
Debt Instrument [Line Items]
Effective interest rate													1.80%
2024 Revolving Credit Facility [Member] \| Minimum [Member] \| SOFR [Member]
Debt Instrument [Line Items]
Effective interest rate													0.20%
2024 Revolving Credit Facility [Member] \| Minimum [Member] \| Adjusted DSS or Term SOFR [Member]
Debt Instrument [Line Items]
Effective interest rate													1.20%
VA Golden [Member]
Debt Instrument [Line Items]
Mortgage note obligation							$ 8,400,000
USCIS - Kansas City [Member]
Debt Instrument [Line Items]
Mortgage note obligation			$ 51,500,000
2018 Term Loan Facility [Member]
Debt Instrument [Line Items]
Loan, Principal Outstanding													$ 174,500,000	200,000,000
Amount available under revolving credit facility										50,000,000
Mortgage note obligation				$ 500,000
2018 Term Loan Facility [Member] \| Interest Rate Swaps [Member]
Debt Instrument [Line Items]
Number of forward interest rate swaps \| Swap													2
Aggregate notional value of interest rate swaps													$ 174,500,000
2018 Term Loan Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Increasing term loan facility commitments										200,000,000
2018 Term Loan Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Increasing term loan facility commitments										$ 150,000,000
Federal Funds Effective Rate Plus \| 2024 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Effective interest rate													0.50%
2016 Term Loan Facility [Member]
Debt Instrument [Line Items]
Loan, Principal Outstanding													$ 100,000,000	$ 100,000,000
Extended maturity date								Jan. 30, 2025
Initial maturity date								Mar. 29, 2024
2016 Term Loan Facility [Member] \| Interest Rate Swaps [Member]
Debt Instrument [Line Items]
Number of forward interest rate swaps \| Swap													3
Aggregate notional value of interest rate swaps													$ 100,000,000
Forward swaps effective date													Dec. 23, 2024
2016 Term Loan Facility [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Senior notes, maturity date	Jan. 28, 2028
Extended maturity date	Jan. 28, 2028
Initial maturity date	Jan. 30, 2025
Senior Unsecured Notes \| Interest Expense [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment													$ 300,000
Senior Unsecured Notes \| 2024 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Loan, Principal Outstanding													400,000,000
Senior Unsecured Notes \| 2021 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Loan, Principal Outstanding													$ 450,000,000
Senior Notes [Member] \| 2024 Senior Note Agreement [Member] \| Operating Partnership [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Senior unsecured notes						$ 200,000,000
Series A Senior Notes [Member] \| 2018 Term Loan Facility [Member]
Debt Instrument [Line Items]
Mortgage note obligation					$ 25,000,000
Series A Senior Notes [Member] \| 2024 Senior Note Agreement [Member] \| Operating Partnership [Member]
Debt Instrument [Line Items]
Senior notes, interest rate						6.56%
Senior notes, maturity date						May 29, 2033
Senior notes, aggregate principal amount						$ 150,000,000
Senior notes, issuance date						May 29, 2024
Series B Senior Notes [Member] \| 2024 Senior Note Agreement [Member] \| Operating Partnership [Member]
Debt Instrument [Line Items]
Senior notes, interest rate						6.56%
Senior notes, maturity date						Aug. 14, 2033
Senior notes, aggregate principal amount						$ 50,000,000
Senior notes, issuance date						Aug. 14, 2024
Senior Unsecured Revolving Credit Facility [Member] \| 2024 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity					$ 400,000,000
Debt instrument, Term					4 years
Debt instrument maturity					2028-06
Line of Credit Facility, Description													The 2024 revolving credit facility has an initial four-year term and will mature in June 2028, with two six-month as-of-right extension options, subject to certain conditions and the payment of an extension fee.
Senior Unsecured Revolving Credit Facility [Member] \| 2024 Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Increase in borrowing capacity					$ 300,000,000