v3.7.0.1
Employee Benefit Plans - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]      
Defined Contribution Plans, Contributions $ 6.4 $ 7.6 $ 6.7
Minimum | Equity Securities [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term return of plan assets 6.00%    
Minimum | Debt Securities [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term return of plan assets 2.00%    
Maximum | Equity Securities [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term return of plan assets 8.00%    
Maximum | Debt Securities [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term return of plan assets 4.00%    
Non-U.S. [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Amounts in accumulated other comprehensive income that are expected to be recognized as components of net periodic benefit cost in 2017 $ 0.3    
Expected long-term return of plan assets 6.34% 6.80% 6.77%
Estimated contributions in 2017 $ 0.8    
U.S. [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term return of plan assets 7.25% 7.25% 7.25%
Estimated contributions in 2017 $ 0.3