Annual report pursuant to Section 13 and 15(d)

Information by Business Segment - Reconciliation of UJV NOI Allocable to COPT Defense to Equity in Income (Loss) of Unconsolidated Entities (Details)

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Information by Business Segment - Reconciliation of UJV NOI Allocable to COPT Defense to Equity in Income (Loss) of Unconsolidated Entities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment financial information for real estate operations      
UJV NOI allocable to COPT Defense $ 7,217 $ 6,659 $ 4,327
Less: Income from UJVs allocable to COPT Defense attributable to depreciation and amortization expense, interest expense and gain on early extinguishment of debt (6,820) (6,917) (3,145)
Add: Equity in (loss) income of unconsolidated non-real estate entities 0 (3) 561
Equity in income (loss) of unconsolidated entities 397 (261) 1,743
Reportable segments      
Segment financial information for real estate operations      
UJV NOI allocable to COPT Defense $ 7,217 $ 6,659 $ 4,327