v3.3.1.900
Restructuring and Divestiture Costs - Corporate - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]      
Restructuring charges $ 23.3 $ 19.8 $ 20.8
Corporate [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and divestiture costs 10.4    
Restructuring charges 8.9    
Payment for restructuring costs 0.5    
Divestiture costs 1.5    
Corporate [Member] | Executives [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges $ 5.5