Revenue - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Tenant accounts receivable	$ 65,784		$ 65,784		$ 71,172
ASU 2014-09 [Member]
Disaggregation of Revenue [Line Items]
Accounts receivable related to tenant construction projects	2,400		2,400		8,100
Contract assets	0		0		0
Contract liabilities	0		0		0
ASU 2014-09 [Member] \| Various GSA - Buffalo Property [Member] \| Parking Garage [Member]
Disaggregation of Revenue [Line Items]
Total revenues	400	$ 100	800	$ 400
Tenant accounts receivable	$ 100		$ 100		$ 100

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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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Easterly Government Properties, Inc. 10-Q