CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Rental revenue	$ 37,808	$ 51,909	$ 46,231
Property operating expenses	20,860	24,360	25,213
General and administrative	12,425	9,287	8,704
Interest income	19,572	18,660	19,607
Interest expense	24,600	29,374	31,816
Affiliate
Rental revenue	944	1,083	841
Property operating expenses	889	990	991
General and administrative	4,091	3,869	4,144
Interest income	15,950	19,515	17,413
Interest expense	$ 1,621	$ 1,581	$ 1,999