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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		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Schedule Of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures	$ 368,024		$ 368,024		$ 393,503
Loss from unconsolidated joint ventures	$ (28,974)	$ (5,797)	$ (63,138)	$ (15,326)
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%
Investments in unconsolidated joint ventures	$ 181,437		$ 181,437		192,948
Loss from unconsolidated joint ventures	$ (3,248)	(2,811)	$ (8,482)	(7,661)
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	$ 83,560		$ 83,560		85,340
Loss from unconsolidated joint ventures	$ (642)	(825)	$ (1,780)	(2,296)
111 Sutter Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	49.00%		49.00%
Loss from unconsolidated joint ventures		(748)		(2,207)
1600 Broadway [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	9.20%		9.20%
Investments in unconsolidated joint ventures	$ 8,762		$ 8,762		9,113
Loss from unconsolidated joint ventures	$ 1	30	$ 1	(38)
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					25,034
Loss from unconsolidated joint ventures		(23)	$ (25,001)	42
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	$ 90,865		$ 90,865		77,961
Loss from unconsolidated joint ventures	$ (25,037)	(1,516)	$ (27,811)	(3,303)
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	$ 3,400		$ 3,400		$ 3,107
Loss from unconsolidated joint ventures	$ (48)	$ 96	$ (65)	$ 137