Leases - Schedule of Net of Allowance and Annualized Cash Under Lease Agreement (Details) - Symmetry Health Care $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
Lessor Lease Description [Line Items]
Straight-Line Rent Asset	$ 753
Other Receivables	516
2018 Original Cash Annual Rent	$ 1,916
% of Total Original Expected 2018 Cash Annual Rent	8.60%
Annualized rent concession granted	$ 644
North Carolina | Mountain Trace
Lessor Lease Description [Line Items]
2018 Original Cash Annual Rent	$ 742
% of Total Original Expected 2018 Cash Annual Rent	3.30%
Annualized rent concession granted	$ 382
South Carolina | Sumter
Lessor Lease Description [Line Items]
Straight-Line Rent Asset	537
Other Receivables	409
2018 Original Cash Annual Rent	$ 836
% of Total Original Expected 2018 Cash Annual Rent	3.80%
Annualized rent concession granted	$ 236
South Carolina | Georgetown
Lessor Lease Description [Line Items]
Straight-Line Rent Asset	216
Other Receivables	107
2018 Original Cash Annual Rent	$ 338
% of Total Original Expected 2018 Cash Annual Rent	1.50%
Annualized rent concession granted	$ 26