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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
	Mar. 31, 2022	Mar. 31, 2021	Feb. 24, 2022	Dec. 31, 2021
Schedule Of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures	$ 423,219			$ 408,096
Loss from unconsolidated joint ventures	$ (5,113)	$ (5,316)
712 Fifth Avenue [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	50.00%
Market Center [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	67.00%
Investments in unconsolidated joint ventures	$ 193,462			185,344
Loss from unconsolidated joint ventures	$ (2,363)	(4,130)
55 Second Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	44.10%
Investments in unconsolidated joint ventures	$ 87,605			88,284
Loss from unconsolidated joint ventures	$ (679)	(622)
111 Sutter Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	49.00%
Investments in unconsolidated joint ventures	$ 34,425			35,182
Loss from unconsolidated joint ventures	$ (778)	(490)
1600 Broadway [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	9.20%		9.20%
Investments in unconsolidated joint ventures	$ 9,753
Loss from unconsolidated joint ventures	$ (48)
60 Wall Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	5.00%
Investments in unconsolidated joint ventures	$ 19,253			19,230
Loss from unconsolidated joint ventures	$ 12	17
One Steuart Lane [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	35.00%
Investments in unconsolidated joint ventures	$ 75,159			76,428
Loss from unconsolidated joint ventures	$ (1,269)	(93)
Oder-Center, Germany [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	9.50%
Investments in unconsolidated joint ventures	$ 3,562			$ 3,628
Loss from unconsolidated joint ventures	$ 12	$ 2