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Information by Business Segment - Reconciliation of UJV NOI to Equity in Income (Loss) of Unconsolidated Entities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Reconciliation of UJV NOI allocable to COPT to equity income (loss) in unconsolidated entities |  |  |  |
UJV NOI allocable to COPT Defense | $ 1,735 | $ 1,671 | $ 3,475 | $ 3,313
Less: Income from UJV allocable to COPT Defense attributable to depreciation and amortization expense and interest expense | (1,709) | (1,559) | (3,380) | (3,263)
Add: Equity in loss of unconsolidated non-real estate entities | 0 | (1) | 0 | (3)
Equity in income of unconsolidated entities | $ 26 | $ 111 | $ 95 | $ 47

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- Definition Income (Loss) from Equity Method Investments Allocable to Depreciation, Amortization and Interest Expense + References No definition available. + Details
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- Definition Income (Loss) in Non-Real Estate Equity Method Investments + References No definition available. + Details
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- Definition Reconciliation of Operating Income from Unconsolidated Joint Ventures to Equity Method Investments [Abstract] + References No definition available. + Details
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