Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Property management fees
Disaggregation of Revenue [Line Items]
Other fee income	$ 577	$ 638
Asset management fees
Disaggregation of Revenue [Line Items]
Other fee income	285	245
Leasing commissions and other fees
Disaggregation of Revenue [Line Items]
Other fee income	101	22
Other fee income
Disaggregation of Revenue [Line Items]
Other fee income	$ 963	$ 905