Mortgage Notes Payable, Net - Schedule of Mortgage Notes Payable, Net (Details) $ in Thousands	Mar. 31, 2025 USD ($) property	Dec. 31, 2024 USD ($)
Debt Instrument [Line Items]
Mortgage notes payable, gross	$ 350,000
Mortgage notes payable, net	$ 347,637	$ 347,384
Mortgages Note Payable
Debt Instrument [Line Items]
Encumbered Properties \| property	6
Mortgage notes payable, gross	$ 350,000	350,000
Less: deferred financing costs, net	(2,363)	(2,616)
Mortgage notes payable, net	$ 347,637	347,384
Effective Interest Rate	4.43%
Mortgage note payable — 123 William Street \| Mortgages Note Payable
Debt Instrument [Line Items]
Encumbered Properties \| property	1
Mortgage notes payable, gross	$ 140,000	140,000
Effective Interest Rate	4.74%
Mortgage note payable — 1140 Avenue of the Americas \| Mortgages Note Payable
Debt Instrument [Line Items]
Encumbered Properties \| property	1
Mortgage notes payable, gross	$ 99,000	99,000
Effective Interest Rate	4.18%
400 E. 67th Street - Laurel Condominium / 200 Riverside Boulevard - ICON Garage \| Mortgages Note Payable
Debt Instrument [Line Items]
Encumbered Properties \| property	2
Mortgage notes payable, gross	$ 50,000	50,000
Effective Interest Rate	4.59%
Mortgage note payable — 8713 Fifth Avenue \| Mortgages Note Payable
Debt Instrument [Line Items]
Encumbered Properties \| property	1
Mortgage notes payable, gross	$ 10,000	10,000
Effective Interest Rate	5.05%
Mortgage note payable — 196 Orchard Street \| Mortgages Note Payable
Debt Instrument [Line Items]
Encumbered Properties \| property	1
Mortgage notes payable, gross	$ 51,000	$ 51,000
Effective Interest Rate	3.85%