Annual report pursuant to Section 13 and 15(d)

Earnings per Share of Common Stock -Schedule of Computation of Basic and Diluted Earnings Per Common Share of Common Stock (Detail)

v3.8.0.1
Earnings per Share of Common Stock -Schedule of Computation of Basic and Diluted Earnings Per Common Share of Common Stock (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Numerator:                      
Net income attributable to controlling stockholders and participating securities $ 3,383 $ 7,933 $ 12,340 $ 7,199 $ 4,408 $ 3,329 $ 3,747 $ 3,169 $ 30,856 $ 14,652 $ 7,958
Less: Dividends paid on participating securities                 (1,900) (1,800) (1,400)
Undistributed earnings attributable to participating securities                 0 0 0
Net income attributable to controlling stockholders                 $ 29,000 $ 12,900 $ 6,600
Denominator:                      
Weighted-average number of common shares-basic                 50,361,672 40,290,717 30,761,151
Weighted-average number of common shares-diluted                 50,361,672 40,290,717 30,761,151
Basic earnings per common share                 $ 0.57 $ 0.32 $ 0.21
Diluted earnings per common share                 $ 0.57 $ 0.32 $ 0.21
Other Information:                      
Weighted-average number of OP units                 284,992 284,992 294,884
Unvested restricted common stock outstanding (i.e. participating securities)                 1,399,593 1,181,672 1,248,069