Debt - Summary of Outstanding Debt (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Notes and mortgages payable, Interest Rate	4.21%
Notes and mortgages payable	$ 3,692,050	$ 3,692,050
Less: unamortized deferred financing costs	(11,193)	(15,420)
Total notes and mortgages payable, net	$ 3,680,857	3,676,630
1633 Broadway [Member] | Mortgages and Notes Payable with Fixed Rate [Member]
Debt Instrument [Line Items]
Paramount Ownership	90.00%
Maturity date of debt	2029-12
Notes and mortgages payable, Interest Rate	2.99%
Notes and mortgages payable	$ 1,250,000	1,250,000
One Market Plaza [Member] | Mortgages and Notes Payable with Fixed Rate [Member]
Debt Instrument [Line Items]
Paramount Ownership	49.00%
Maturity date of debt	2027-02
Notes and mortgages payable, Interest Rate	4.08%
Notes and mortgages payable	$ 850,000	850,000
1301 Avenue of the Americas [Member] | Mortgages and Notes Payable with Variable Rate [Member]
Debt Instrument [Line Items]
Paramount Ownership	100.00%
Maturity date of debt	2026-08
Fixed/Variable Rate	2.77%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:SecuredOvernightFinancingRateSofrMember
Notes and mortgages payable, Interest Rate	6.27%
Notes and mortgages payable	$ 860,000	860,000
31 West 52nd Street [Member] | Mortgages and Notes Payable with Fixed Rate [Member]
Debt Instrument [Line Items]
Paramount Ownership	100.00%
Maturity date of debt	2026-06
Notes and mortgages payable, Interest Rate	3.80%
Notes and mortgages payable	$ 500,000	500,000
300 Mission Street [Member] | Mortgages and Notes Payable with Fixed Rate [Member]
Debt Instrument [Line Items]
Paramount Ownership	31.10%
Maturity date of debt	2026-10
Notes and mortgages payable, Interest Rate	4.50%
Notes and mortgages payable	$ 232,050	$ 232,050