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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, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Apr. 30, 2024	Mar. 29, 2024	Dec. 31, 2023
Schedule Of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures	$ 130,087		$ 130,087				$ 132,239
Loss from unconsolidated joint ventures	$ (771)	$ (28,402)	$ (2,117)	$ (34,164)
712 Fifth Avenue [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	50.00%		50.00%
Market Center [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	67.00%		67.00%
Loss from unconsolidated joint ventures		(2,579)		(5,234)
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	$ 29,956		$ 29,956				30,322
Loss from unconsolidated joint ventures	$ (63)	(499)	$ (365)	(1,138)
111 Sutter Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	49.00%		49.00%		49.00%
1600 Broadway [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	9.20%		9.20%
Investments in unconsolidated joint ventures	$ 8,429		$ 8,429				8,646
Loss from unconsolidated joint ventures		3	$ 1
60 Wall Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	5.00%		5.00%			5.00%
Investments in unconsolidated joint ventures	$ 272		$ 272
Loss from unconsolidated joint ventures	$ 56	(24,984)	$ (1,631)	(25,001)
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	$ 88,050		$ 88,050				89,949
Loss from unconsolidated joint ventures	$ (798)	(358)	$ (107)	(2,774)
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	$ 3,380		$ 3,380				$ 3,322
Loss from unconsolidated joint ventures	$ 34	$ 15	$ (15)	$ (17)