Schedule III - Real Estate and Accumulated Depreciation -Real Estate Activity (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)
Real Estate:
Beginning balance	$ 448,620
Acquisitions and improvements	1,231
Property Sold	(7,880)
Ending balance	441,971
Accumulated Depreciation:
Beginning balance	34,221
Property sold	(1,052)
Depreciation	15,751
Ending balance	$ 48,920