Leased percentage of operating properties.

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- Definition

Organization and significant accounting policies.

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- Definition

Percentage of revenue by leasing properties.

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- Definition

Reverse unit split ratio.

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No definition available.

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- Definition

Face amount or stated value per share of common stock.

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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- Definition

Net rentable area for properties owned.

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No definition available.

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- Definition

The number of real estate properties owned as of the balance sheet date.

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No definition available.

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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

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Organization and Basis of Presentation - Additional Information (Detail) ft² in Millions		3 Months Ended
	Apr. 28, 2025	Mar. 31, 2026 ft² Property $ / shares shares	Dec. 31, 2025 $ / shares shares
Organization And Significant Accounting Policies [Line Items]
Reverse stock split, description		effective April 28, 2025 (the “Reverse Stock Split”). Concurrently with the Reverse Stock Split, our operating partnership completed a corresponding 1-for-2.5 reverse unit split of outstanding common units and LTIP units (the “Reverse Unit Split”).
Reverse stock split ratio	0.4
Reverse unit split ratio	0.4
Common Stock, shares outstanding \| shares		46,444,374	46,303,469
Common Stock, shares authorized \| shares		80,000,000	80,000,000
Common Stock, par value \| $ / shares		$ 0.01	$ 0.01
Easterly Government Properties LP [Member]
Organization And Significant Accounting Policies [Line Items]
Outstanding common units of aggregate limited partnership interest owned percentage		96.60%
Joint Venture [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties		10
U.S. General Services Administration [Member] \| Minimum [Member]
Organization And Significant Accounting Policies [Line Items]
Percentage of revenue by leasing properties		85.00%
Wholly Owned Operating Properties [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties		96
Leased percentage of operating properties		97.00%
Aggregate area of land \| ft²		10.7
Wholly Owned Operating Properties [Member] \| Government [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties		93
Wholly Owned Operating Properties Entirely Leased [Member] \| Private Tenants [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties		5
Wholly Owned Properties Under Development [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties		3
Aggregate area of land \| ft²		0.2