Real Estate - Real Estate Portfolio (Details)		9 Months Ended
	Mar. 17, 2016 USD ($)	Sep. 30, 2016 USD ($) ft²
Real Estate Properties [Line Items]
Purchase price of property	$ 2,800,000
Percentage of acquisition fees		2.50%
Percent reimbursed		0.50%
Lynnwood III
Real Estate Properties [Line Items]
Purchase price of property		$ 1,538,000
Square Feet | ft²		43,000
Acquisition Fees Paid to the Advisor		$ 46,000
Lynnwood IV
Real Estate Properties [Line Items]
Purchase price of property		$ 1,244,000
Square Feet | ft²		34,800
Acquisition Fees Paid to the Advisor		$ 37,000
HealthSpring
Real Estate Properties [Line Items]
Purchase price of property		$ 41,300,000
Square Feet | ft²		170,500
Acquisition Fees Paid to the Advisor		$ 1,239