Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (EPS) - Summary of Earnings Per Share (EPS) (Detail)

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Earnings Per Share (EPS) - Summary of Earnings Per Share (EPS) (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Earnings Per Share [Abstract]        
Net Income (Loss) Available to Common Stockholders, Basic $ (21,217,000) $ (46,228,000) $ (92,153,000) $ (181,885,000)
Basic 138,300,015 124,486,848 135,455,168 123,894,980
Basic income (loss) per common share $ (0.15) $ (0.37) $ (0.68) $ (1.47)
Diluted 138,300,015 124,486,848 135,455,168 123,894,980
Diluted income (loss) per common share $ (0.15) $ (0.37) $ (0.68) $ (1.47)
Stock Options And Restricted Stock 0 0 0 0
Stock Options and Restricted Stock, Price per Share $ 0 $ 0.00 $ 0 $ 0.00
Net Income (Loss) Available to Common Stockholders, Diluted $ (21,217,000) $ (46,228,000) $ (92,153,000) $ (181,885,000)