Acquisition of Real Estate (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)
Sands Parc [Member]
Business Acquisition [Line Items]
Location	Daytona Beach, FL
Date	May 01, 2018
Interest	100.00%
Price	$ 46,200
Mortgage		[1]
Plantation Park [Member]
Business Acquisition [Line Items]
Location	Lake Jackson, TX
Date	Jun. 14, 2018
Interest	80.00%
Price	$ 35,600
Mortgage	$ 26,625
Veranda at Centerfield [Member]
Business Acquisition [Line Items]
Location	Houston, TX
Date	Jul. 26, 2018
Interest	93.00%
Price	$ 40,150
Mortgage	$ 26,100
Ashford Belmar [Member]
Business Acquisition [Line Items]
Location	Lakewood, CO
Date	Nov. 15, 2018
Interest	85.00%
Price	$ 143,444
Mortgage	$ 100,675
Preston View [Member]
Business Acquisition [Line Items]
Location	Morrisville, NC
Date	Feb. 17, 2017
Interest	91.80%	[2]
Price	$ 59,500
Mortgage	$ 41,066
Wesley Village [Member]
Business Acquisition [Line Items]
Location	Charlotte, NC
Date	Mar. 09, 2017
Interest	91.80%	[2]
Price	$ 57,150
Mortgage	$ 40,545
Texas Portfolio [Member]
Business Acquisition [Line Items]
Location		[3]
Date	Jun. 09, 2017	[3]
Interest	90.00%	[3]
Price	$ 188,850	[3]
Mortgage	$ 146,377	[3]
Cypress Creek [Member]
Business Acquisition [Line Items]
Location	Houston, TX
Date	Sep. 08, 2017
Interest	80.00%
Price	$ 40,700
Mortgage	$ 26,200
Citrus Tower [Member]
Business Acquisition [Line Items]
Location	Orlando, FL
Date	Sep. 28, 2017
Interest	96.80%
Price	$ 55,250
Mortgage	$ 41,438
Greystone [Member]
Business Acquisition [Line Items]
Location	Birmingham, AL
Date	Oct. 19, 2017
Interest	100.00%
Price	$ 36,250
Mortgage		[1]
ARIUM Metrowest [Member]
Business Acquisition [Line Items]
Location	Orlando, FL
Date	Oct. 30, 2017
Interest	100.00%
Price	$ 86,000
Mortgage		[1]
ARIUM Hunter's Creek [Member]
Business Acquisition [Line Items]
Location	Orlando, FL
Date	Oct. 30, 2017
Interest	100.00%
Price	$ 96,888
Mortgage	$ 72,294
The Mills [Member]
Business Acquisition [Line Items]
Location	Greenville, SC
Date	Nov. 29, 2017
Interest	100.00%
Price	$ 40,250
Mortgage	$ 26,817
Links at Plum Creek [Member]
Business Acquisition [Line Items]
Location	Castle Rock, CO
Date	Mar. 26, 2018
Interest	88.00%
Price	$ 61,100
Mortgage	$ 40,000

[1] Funded, in part, with the Company’s Senior Credit Facility secured by the property. See Note 8 for further information about the Company’s Secured Credit Facility.

[2] Subsequently increased to 100.0% as discussed below.

[3] Marquis at Crown Ridge, Marquis at Stone Oak and Marquis at TPC located in San Antonio, Texas, and Marquis at The Cascades I and II (considered one property subsequent to acquisition) located in Tyler, Texas.