Investments in Unconsolidated Real Estate Joint Ventures (Joint Venture Fees) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Management, Leasing and other services [Line Items]
Total Fees	$ 1,527	$ 1,372
Management and marketing
Management, Leasing and other services [Line Items]
Total Fees	536	509
Leasing and other fees
Management, Leasing and other services [Line Items]
Total Fees	35	56
Expense reimbursements from unconsolidated joint ventures
Management, Leasing and other services [Line Items]
Total Fees	$ 956	$ 807