Number of impaired real estate assets during the period.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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- Definition

Fair value portion of asset recognized for present right to economic benefit.

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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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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- Definition

Fair value portion of other assets.

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- Definition

Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Fair Value Measurements - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) property	Dec. 31, 2023 USD ($) property	Dec. 31, 2022 USD ($)
Fair Value
Net unrealized gain (loss) on derivative designated as effective hedge	$ 17,200	$ 22,700
Gain (loss) expected to be reclassified into interest expense within the next 12 months	5,600
Impairment loss	$ 55,427	$ 90,226
Nonrecurring \| Fair Value
Fair Value
Other assets			$ 0
Development Parcel
Fair Value
Number of impaired real estate assets \| property	2	1
Commercial Assets
Fair Value
Number of impaired real estate assets \| property		3
2101 L Street \| Level 3 \| Nonrecurring
Fair Value
Estimated fair value		$ 121,300
2100 Crystal Drive, 2200 Crystal Drive and Development parcel \| Level 2 \| Nonrecurring
Fair Value
Estimated fair value		56,400
2101 L Street, 2100 Crystal Drive, 2200 Crystal Drive and Development parcel \| Nonrecurring
Fair Value
Impairment loss		$ 90,200
1901 South Bell Street, 2101 L Street, 8001 Woodmont and two development parcels \| Level 2 \| Nonrecurring
Fair Value
Estimated fair value	$ 332,500
Impairment loss	$ 55,400