Investments in Unconsolidated Joint Ventures - Summary of Investments and Income from Investments In Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures	$ 408,096	$ 412,724
Loss from unconsolidated joint ventures	$ (24,896)	(18,619)	$ (4,706)
712 Fifth Avenue [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	50.00%
Loss from unconsolidated joint ventures	$ (10,265)	687	1,849
Market Center [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	67.00%
Investments in unconsolidated joint ventures	$ 185,344	192,306
Loss from unconsolidated joint ventures	$ (11,848)	(11,315)	(744)
55 Second Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	44.10%
Investments in unconsolidated joint ventures	$ 88,284	92,298
Loss from unconsolidated joint ventures	$ (2,912)	(2,723)	(826)
111 Sutter Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	49.00%
Investments in unconsolidated joint ventures	$ 35,182	37,818
Loss from unconsolidated joint ventures	$ (2,658)	(3,172)	(4,394)
60 Wall Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	5.00%
Investments in unconsolidated joint ventures	$ 19,230	19,164
Loss from unconsolidated joint ventures	$ 66	(70)	(551)
One Steuart Lane [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	35.00%
Investments in unconsolidated joint ventures	$ 76,428	67,505
Loss from unconsolidated joint ventures	$ 2,678	(2,043)	(118)
Oder-Center, Germany [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	9.50%
Investments in unconsolidated joint ventures	$ 3,628	3,633
Loss from unconsolidated joint ventures	$ 43	$ 17	$ 78

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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