Acquisitions and Dispositions - Dispositions - Narrative (Details) - USD ($) $ in Thousands		1 Months Ended		12 Months Ended
	Dec. 07, 2022	Apr. 30, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Feb. 01, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Mortgage notes payable, net			$ 948,769	$ 883,705	$ 948,769
Gain on sale/disposition of properties				33,988	0	$ 0
Impairment charges				0	7,723	$ 6,204
Assets			0	35,538	$ 0
383 Main Avenue, Norwalk, CT
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Mortgage notes payable, net		$ 30,000
Gain on sale/disposition of properties		$ 27,200
Impairment charges			$ 7,700
10 Bank Street
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Mortgage notes payable, net	$ 30,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | 10 Bank Street
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale/disposition of properties	6,800
Assets	$ 42,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | 69-97 and 103-107 Main Street | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets							$ 40,000
Disposal Group, Held-for-sale, Not Discontinued Operations | 500 Mamaroneck Avenue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets				$ 53,000