Acquisitions and Dispositions - Dispositions of Property (Details) - USD ($) $ in Thousands					3 Months Ended		9 Months Ended
	Apr. 05, 2023	Feb. 01, 2023	Dec. 07, 2022	Apr. 01, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Gain on Disposition					$ 0	$ 0	$ 29,261	$ 27,170
Mortgage notes payable, net					$ 878,757		$ 878,757		$ 883,705
Disposal Group, Disposed of by Sale, Not Discontinued Operations | 500 Mamaroneck Avenue, Harrison, New York
Business Acquisition [Line Items]
Sales Price	$ 53,000
Gain on Disposition	13,572
Estimated post-closing obligations	2,000
Incremental post-closing obligation	$ 3,600
Disposal Group, Disposed of by Sale, Not Discontinued Operations | 69-97 and 103-107 Main Street, Westport, Connecticut
Business Acquisition [Line Items]
Sales Price		$ 40,000
Gain on Disposition		$ 15,689
Disposal Group, Disposed of by Sale, Not Discontinued Operations | 10 Bank Street, White Plains, New York
Business Acquisition [Line Items]
Sales Price			$ 42,000
Gain on Disposition			$ 6,818
Disposal Group, Disposed of by Sale, Not Discontinued Operations | 383 Main Avenue, Norwalk, Connecticut
Business Acquisition [Line Items]
Sales Price				$ 30,000
Gain on Disposition				27,170
Mortgage notes payable, net				$ 30,000