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, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Mar. 29, 2024
Schedule Of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures	$ 81,509		$ 81,509		$ 85,952
Income (loss) from unconsolidated joint ventures	$ 661	$ (981)	$ 2,620	$ (3,098)
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	$ 66,932		$ 66,932		76,579
Income (loss) from unconsolidated joint ventures	$ 602	(721)	$ 2,442	(828)
1600 Broadway [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	9.20%		9.20%
Investments in unconsolidated joint ventures	$ 7,774		$ 7,774		8,161
Income (loss) from unconsolidated joint ventures	$ 0	0	$ 1	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	$ 6,803		$ 6,803		1,212
Income (loss) from unconsolidated joint ventures	59	55	177	(1,576)
Other [Member]
Schedule Of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures	0		0		$ 0
Income (loss) from unconsolidated joint ventures	$ 0	$ (315)	$ 0	$ (695)