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Investments in Unconsolidated Joint Ventures - Summary of Investments and Income from Investments In Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Investments in unconsolidated joint ventures | $ 421,183 |  | $ 421,183 |  | $ 449,180
Loss from unconsolidated joint ventures | $ (5,955) | $ (456) | $ (10,176) | $ (1,483) |
712 Fifth Avenue [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Equity method paramount ownership percentage | 50.00% |  | 50.00% |  |
Loss from unconsolidated joint ventures | $ 229 | 917 | $ 229 | 917 |
Market Center [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Equity method paramount ownership percentage | 67.00% |  | 67.00% |  |
Investments in unconsolidated joint ventures | $ 197,250 |  | $ 197,250 |  | 219,593
Loss from unconsolidated joint ventures | $ (3,070) |  | $ (5,924) |  |
55 Second Street [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Equity method paramount ownership percentage | 44.10% |  | 44.10% |  |
Investments in unconsolidated joint ventures | $ 93,939 |  | $ 93,939 |  | 95,384
Loss from unconsolidated joint ventures | $ (662) |  | $ (1,346) |  |
111 Sutter Street [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Equity method paramount ownership percentage | 49.00% |  | 49.00% |  |
Investments in unconsolidated joint ventures | $ 39,417 |  | $ 39,417 |  | 41,519
Loss from unconsolidated joint ventures | $ (919) | (1,249) | $ (1,529) | (2,121) |
60 Wall Street [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Equity method paramount ownership percentage | 5.00% |  | 5.00% |  |
Investments in unconsolidated joint ventures | $ 19,148 |  | $ 19,148 |  | 19,777
Loss from unconsolidated joint ventures | $ (9) | (149) | $ (91) | (298) |
One Steuart Lane [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Equity method paramount ownership percentage | 35.00% |  | 35.00% |  |
Investments in unconsolidated joint ventures | $ 67,986 |  | $ 67,986 |  | 69,536
Loss from unconsolidated joint ventures | $ (1,549) | 8 | $ (1,550) | (7) |
Oder-Center, Germany [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Equity method paramount ownership percentage | 9.50% |  | 9.50% |  |
Investments in unconsolidated joint ventures | $ 3,443 |  | $ 3,443 |  | $ 3,371
Loss from unconsolidated joint ventures | $ 25 | $ 17 | $ 35 | $ 26 |

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