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Investments in Unconsolidated Joint Ventures - Summary of Investments and Income from Investments In Unconsolidated Joint Ventures (Parenthetical) (Details) $ in Thousands | 6 Months Ended
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Jun. 30, 2020 USD ($)
712 Fifth Avenue [Member] |
Schedule Of Equity Method Investments [Line Items] |
Distributions made in excess of share of earnings recognized negative basis | $ 20,956
55 Second Street [Member] |
Schedule Of Equity Method Investments [Line Items] |
Difference between carrying amount of investment and equity | 493
60 Wall Street [Member] |
Schedule Of Equity Method Investments [Line Items] |
Difference between carrying amount of investment and equity | 2,691
One Steuart Lane [Member] |
Schedule Of Equity Method Investments [Line Items] |
Difference between carrying amount of investment and equity | 970
Oder-Center, Germany [Member] |
Schedule Of Equity Method Investments [Line Items] |
Difference between carrying amount of investment and equity | $ 4,593

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