Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Earnings (Loss) Per Share (EPS) - Summary of Earnings Per Share (EPS) (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Earnings Per Share [Abstract]    
Basic earnings (loss) per share $ (29,702) $ (39,809)
Diluted earnings (loss) per share $ (29,702) $ (39,809)
Basic earnings (loss) per share (in shares) 138,765,995 130,142,527
Effect of dilutive securities:    
Restricted stock units (in shares) 0 0
Mandatory convertible preferred stock (in shares) 0 0
Diluted earnings (loss) per share (in shares) 138,765,995 130,142,527
Basic earnings (loss) per common share (in dollars per share) $ (0.21) $ (0.31)
Diluted earnings (loss) per common share (in dollars per share) $ (0.21) $ (0.31)
Shares excluded from the computation of diluted EPS 23,809,500