Quarterly report pursuant to Section 13 or 15(d)

Business and Credit Concentrations - Additional Information (Detail)

v3.5.0.2
Business and Credit Concentrations - Additional Information (Detail)
$ in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2016
USD ($)
Customer
Sep. 30, 2015
USD ($)
Customer
Sep. 30, 2016
USD ($)
Customer
Sep. 30, 2015
USD ($)
Customer
Dec. 31, 2015
USD ($)
Customer
Concentration Risk [Line Items]          
Credit losses attributable to write-offs (recoveries) | $ $ 1.3 $ 1.5 $ 5.2 $ 2.2  
Net Sales [Member] | Customer Concentration Risk [Member]          
Concentration Risk [Line Items]          
Number of largest customers | Customer 5 5 5 5  
Percentage of concentration risk 10.30% 13.40% 11.70% 15.10%  
Number of customers accounting for more than 10% | Customer 0 0 0 0  
Net Trade Receivable [Member] | Credit Concentration Risk [Member]          
Concentration Risk [Line Items]          
Number of customers accounting for more than 10% | Customer     0    
Gross Trade Receivable [Member] | Credit Concentration Risk [Member]          
Concentration Risk [Line Items]          
Percentage of concentration risk         10.60%
Number of customers accounting for more than 10% | Customer         1
Domestic [Member]          
Concentration Risk [Line Items]          
Accounts receivable | $ $ 202.5   $ 202.5   $ 180.2
Non-US [Member]          
Concentration Risk [Line Items]          
Accounts receivable | $ 258.4   258.4   188.0
Net total assets held outside the United States | $ $ 985.9   $ 985.9   $ 773.5