Quarterly report pursuant to Section 13 or 15(d)

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

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Earnings per Share of Common Stock - Basic and Diluted Loss Per Share of Common Stock (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Calculation of basic earnings (loss) per share of common stock:    
Net income (loss) available (attributable) to common stockholders $ 1,735 $ (426)
Denominator for basic weighted average shares of common stock (in shares) 24,963,926 22,545,285
Basic earnings (loss) per share of common stock (in dollars per share) $ 0.07 $ (0.02)
Calculation of diluted earnings (loss) per share of common stock:    
Net income (loss) available (attributable) to common stockholders $ 1,735 $ (426)
Add: income impact of assumed conversion of senior common stock 0 0
Net income (loss) attributable to common stockholders plus assumed conversions $ 1,735 $ (426)
Denominator for basic weighted average shares of common stock (in shares) 24,963,926 22,545,285
Effect of convertible senior common stock (in shares) 0 0
Denominator for diluted weighted average shares of common stock (in shares) 24,963,926 22,545,285
Diluted earnings (loss) per share of common stock (in dollars per share) $ 0.07 $ (0.02)