Rental Property, Net - Schedule of Rental Properties and Lease Provisions (Details)		12 Months Ended
	Apr. 01, 2018 USD ($) ft²	Dec. 31, 2017 USD ($)
Property Subject to or Available for Operating Lease [Line Items]
Lessor leasing arrangements, term of contract		10 years 3 months
Consumer retail \| Property leased between January 16, 2015 and May 31, 2025
Property Subject to or Available for Operating Lease [Line Items]
2018 Annual Base Rent		$ 139,212
% of Aggregate Annual Rent		22.10%
Consumer retail \| Property leased between September 16, 2015 and September 30, 2022
Property Subject to or Available for Operating Lease [Line Items]
2018 Annual Base Rent		$ 74,800
% of Aggregate Annual Rent		11.90%
Healthcare (non-profit) \| Property leased between July 22, 2016 and March 31, 2028
Property Subject to or Available for Operating Lease [Line Items]
2018 Annual Base Rent		$ 98,324
% of Aggregate Annual Rent		15.60%
Healthcare (non-profit) \| Property leased between April 1, 2018 and March 31, 2028
Property Subject to or Available for Operating Lease [Line Items]
2018 Annual Base Rent		$ 154,660
% of Aggregate Annual Rent		24.50%
Healthcare (non-profit) \| Property leased between April 1, 2018 and March 31, 2028 \| Forecast
Property Subject to or Available for Operating Lease [Line Items]
2018 Annual Base Rent	$ 206,383
Area (square feet) \| ft²	8,864
Lessor leasing arrangements, term of contract	10 years
Term of free rent (in months)	7 months
Free rent	$ 120,181
Healthcare (non-profit) \| Property leased between December 18, 2013 and December 17, 2023
Property Subject to or Available for Operating Lease [Line Items]
2018 Annual Base Rent		$ 66,618
% of Aggregate Annual Rent		10.60%
Real Estate \| Property leased between November 22, 2016 and March 31, 2018
Property Subject to or Available for Operating Lease [Line Items]
2018 Annual Base Rent		$ 50,215
% of Aggregate Annual Rent		8.00%
Technology Equipment [Member] \| Property leased between April 23, 2016 and April 30, 2019
Property Subject to or Available for Operating Lease [Line Items]
2018 Annual Base Rent		$ 46,226
% of Aggregate Annual Rent		7.30%

Resource Income Opportunity REIT, Inc. 10-K