Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Narrative (Detail)

v3.6.0.2
Subsequent Events - Narrative (Detail) - $ / shares
12 Months Ended
Feb. 14, 2017
Dec. 31, 2016
Subsequent Event [Line Items]    
Options granted in period (in shares)   3,132,609
Performance-Based Restricted Stock Units    
Subsequent Event [Line Items]    
Restricted stock units granted in period (in shares)   605,658
Nonperformance-Based Restricted Stock Units    
Subsequent Event [Line Items]    
Restricted stock units granted in period (in shares)   82,113
Restricted Stock    
Subsequent Event [Line Items]    
Restricted stock units granted in period (in shares)   128,737
Subsequent Event    
Subsequent Event [Line Items]    
Options granted in period (in shares) 3,300,000  
Subsequent Event | Performance-Based Restricted Stock Units    
Subsequent Event [Line Items]    
Restricted stock units granted in period (in shares) 600,000  
Subsequent Event | Nonperformance-Based Restricted Stock Units    
Subsequent Event [Line Items]    
Restricted stock units granted in period (in shares) 30,000  
Subsequent Event | Restricted Stock    
Subsequent Event [Line Items]    
Restricted stock units granted in period (in shares) 77,000  
Subsequent Event | Dividend Declared    
Subsequent Event [Line Items]    
Cash dividend (in USD per share) $ 0.42