Schedule III - Real Estate and Accumulated Depreciation -Real Estate Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Real Estate
Beginning balance	$ 721,664	$ 441,971	$ 448,620
Acquisitions and improvements	5,811	279,693	1,231
Property sold	(23,121)	0	(7,880)
Ending balance	704,354	721,664	441,971
Accumulated Depreciation
Beginning balance	67,026	48,920	34,221
Property sold	(3,166)	0	(1,052)
Depreciation	23,672	18,106	15,751
Ending balance	$ 87,532	$ 67,026	$ 48,920