Quarterly report pursuant to Section 13 or 15(d)

Equity and Mezzanine Equity - Summary of Changes in Stockholders' Equity (Detail)

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Equity and Mezzanine Equity - Summary of Changes in Stockholders' Equity (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stockholders' equity, beginning balance     $ 208,134    
Comprehensive income $ (481) $ (988) (3,009) $ (1,711)  
Net income 965 2,205 3,225 6,878  
Stockholders' equity, ending balance 205,741   205,741    
Total Equity 208,633 264,085 208,633 264,085 $ 211,037
Senior Common Stock          
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stockholders' equity, beginning balance 1 1 1 1  
Issuance of Series A and B preferred stock and common stock, net 0 0 0 0  
Stockholders' equity, ending balance 1 1 1 1  
Series A and B Preferred Stock          
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stockholders' equity, beginning balance 0 2 0 2  
Issuance of Series A and B preferred stock and common stock, net 0 0 0 0  
Stockholders' equity, ending balance 0 2 0 2  
Common Stock          
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stockholders' equity, beginning balance 34 30 32 29  
Issuance of Series A and B preferred stock and common stock, net 0 1 2 2  
Stockholders' equity, ending balance 34 31 34 31  
Additional Paid in Capital          
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stockholders' equity, beginning balance 599,232 573,868 571,205 559,977  
Issuance of Series A and B preferred stock and common stock, net 508 19,135 28,438 33,246  
Adjustment to OP Units held by Non-controlling OP Unitholders resulting from changes in ownership of the Operating Partnership 1 (297) 98 (517)  
Stockholders' equity, ending balance 599,741 592,706 599,741 592,706  
Accumulated Other Comprehensive Income          
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stockholders' equity, beginning balance (4,654) (870) (2,126) (148)  
Comprehensive income (481) (989) (3,009) (1,711)  
Stockholders' equity, ending balance (5,135) (1,859) (5,135) (1,859)  
Distributions in Excess of Accumulated Earnings          
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stockholders' equity, beginning balance (374,259) (319,402) (360,978) (310,117)  
Distributions declared to common, senior common, and preferred stockholders (15,634) (14,280) (31,184) (28,193)  
Net income 993 2,221 3,262 6,849  
Stockholders' equity, ending balance (388,900) (331,461) (388,900) (331,461)  
Total Stockholders' Equity          
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stockholders' equity, beginning balance 220,354 253,629 208,134 249,744  
Issuance of Series A and B preferred stock and common stock, net 508 19,136 28,440 33,248  
Distributions declared to common, senior common, and preferred stockholders (15,634) (14,280) (31,184) (28,193)  
Comprehensive income (481) (989) (3,009) (1,711)  
Adjustment to OP Units held by Non-controlling OP Unitholders resulting from changes in ownership of the Operating Partnership 1 (297) 98 (517)  
Net income 993 2,221 3,262 6,849  
Stockholders' equity, ending balance 205,741 259,420 205,741 259,420  
Non-Controlling Interest          
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stockholders' equity, beginning balance 3,110 4,662 2,903 4,675  
Distributions declared to common, senior common, and preferred stockholders (189) (278) (378) (556)  
Issuance of Non-controlling OP Units as consideration in real estate acquisitions, net 0 0 502 0  
Adjustment to OP Units held by Non-controlling OP Unitholders resulting from changes in ownership of the Operating Partnership (1) 297 (98) 517  
Net income (28) (16) (37) 29  
Stockholders' equity, ending balance $ 2,892 $ 4,665 $ 2,892 $ 4,665