CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Rental revenue	$ 51,909	$ 46,231	$ 113,944
Property operating expenses	24,360	25,694	59,587
General and administrative	10,614	11,089	12,708
Interest Income	23,098	25,955	21,645
Interest expenses	35,004	39,860	66,063
Affiliate
Rental revenue	1,083	841	144
Property operating expenses	990	991	254
General and administrative	3,869	4,429	1,267
Interest Income	19,515	23,670	5,406
Interest expenses	$ 6,632	$ 9,282	$ 2,240