Supplemental Disclosures for the Statement of Consolidated Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Tenant improvements funded by tenants	$ 30,790	$ 2,928
Accrued capital expenditures and deferred lease costs	17,458	18,424
Change in accrued dividends	(25,358)	(26,048)
Change in accrued deferred financing costs	(32)	71
Accrued stock issuance costs	0	150
Cash and cash equivalents	5,044	10,653	$ 16,536	$ 7,419
Restricted cash and escrows	5,983	2,191	3,064	1,441
Total cash, cash equivalents, and restricted cash and escrows as presented in the accompanying consolidated statement of cash flows, beginning of period	$ 11,027	$ 12,844	$ 19,600	$ 8,860