v3.6.0.2
Earnings per Share - Computation of Earnings per Share (EPS) (Parenthetical) (Detail) - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Common Stock [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Exercise price of warrants $ 133.32 $ 133.32 $ 0.00
Stock Options [Member] | Maximum [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive securities excluded from computation of earning per share amount 1,400,000 700,000 500,000
Unvested RSU's, PSU's and Equity Rights [Member] | Maximum [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive securities excluded from computation of earning per share amount 900,000 500,000 1,200,000
Warrant [Member] | Maximum [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive securities excluded from computation of earning per share amount 11,200,000 11,200,000 0