Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Capitalized costs related to the improvement or replacement of real estate properties			$ 40,600	$ 31,200
Acquisition transaction costs	$ 0	$ 179	4	613
Allowance for doubtful accounts	6,200		6,200		$ 5,200
Payroll related costs capitalized	332	$ 313	$ 902	$ 931
Number of reportable segments | segment			1
Property, Plant and Equipment [Line Items]
Operating Leases, Future Minimum Payments Due	$ 42,087		$ 42,087
Minimum | Building
Property, Plant and Equipment [Line Items]
Useful life of PPE (in years)			39 years
Minimum | Property Improvements
Property, Plant and Equipment [Line Items]
Useful life of PPE (in years)			10 years
Minimum | Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Useful life of PPE (in years)			3 years
Maximum | Building
Property, Plant and Equipment [Line Items]
Useful life of PPE (in years)			40 years
Maximum | Property Improvements
Property, Plant and Equipment [Line Items]
Useful life of PPE (in years)			20 years
Maximum | Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Useful life of PPE (in years)			10 years