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Earnings (Loss) per Share - Additional Information (Detail) - shares
shares in Millions
3 Months Ended
Dec. 17, 2018
Mar. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Ordinary shares issued upon mandatory conversion of preferred shares 70.6  
Convertible Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Weighted average shares with anti-dilutive effect on earnings per share   64.0