Annual report pursuant to Section 13 and 15(d)

Equity - Schedule of Distributions on Common Stock (Detail)

v3.10.0.1
Equity - Schedule of Distributions on Common Stock (Detail)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Series A Preferred Stock    
Class of Stock [Line Items]    
Ordinary Income 96.85143% 82.32594%
Return of Capital 3.14857% 0.00%
Long-term Capital Gain 0.00% 17.67406%
Common Stock    
Class of Stock [Line Items]    
Ordinary Income 0.00% 26.8429%
Return of Capital 100.00% 67.39436%
Long-term Capital Gain 0.00% 5.76274%