Investments in Unconsolidated Joint Ventures - Summary of Investments and Income from Investments In Unconsolidated Joint Ventures (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 31, 2023
Schedule Of Equity Method Investments [Line Items]
Distributions of earnings from unconsolidated joint ventures					$ 17,096	$ 1,324	$ 7,278
Contribution to the joint venture					$ 40,715	15,812	$ 11,750
712 Fifth Avenue [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	50.00%				50.00%
55 Second Street [Member]
Schedule Of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss	$ 52,590				$ 52,590
Difference between carrying amount of investment and equity	$ 462				$ 462
Equity method paramount ownership percentage	44.10%				44.10%
Real estate impairment loss	$ 119,279				$ 119,279
Market Center [Member]
Schedule Of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss	$ 229,054				$ 229,054
Equity method paramount ownership percentage	67.00%				67.00%
Recognized real estate impairment loss	$ 148,906				$ 148,906
Real estate impairment loss	$ 341,872				$ 341,872
111 Sutter Street [Member]
Schedule Of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss				$ 31,685		31,685
Equity method paramount ownership percentage	49.00%				49.00%
Real estate impairment loss				$ 64,663		$ 64,663
1600 Broadway [Member]
Schedule Of Equity Method Investments [Line Items]
Difference between carrying amount of investment and equity	$ 306				$ 306
Equity method paramount ownership percentage	9.20%				9.20%
60 Wall Street [Member]
Schedule Of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss			$ 24,734		$ 24,734
Equity method paramount ownership percentage	5.00%				5.00%
Real estate impairment loss			$ 455,893		$ 455,893
60 Wall Street [Member] | Nonrecourse [Member]
Schedule Of Equity Method Investments [Line Items]
Defaulted on non-recourse mortgage loan								$ 575,000
One Steuart Lane [Member]
Schedule Of Equity Method Investments [Line Items]
Difference between carrying amount of investment and equity	$ 590				$ 590
Equity method paramount ownership percentage	35.00%				35.00%
Equity method economic interest percentage					2.60%
Impairment loss on for sale condominium units		$ 68,407			$ 68,407
One Steuart Lane [Member] | Residential Development Fund's [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	7.40%				7.40%
Proportionate share of impairment loss on for sale condominium units		$ 23,942			$ 23,942
Oder-Center, Germany [Member]
Schedule Of Equity Method Investments [Line Items]
Difference between carrying amount of investment and equity	$ 4,063				$ 4,063
Equity method paramount ownership percentage	9.50%				9.50%