Quarterly report pursuant to Section 13 or 15(d)

Business and Credit Concentrations - Additional Information (Detail)

v3.3.0.814
Business and Credit Concentrations - Additional Information (Detail)
$ in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2015
USD ($)
Customer
Sep. 30, 2014
USD ($)
Customer
Sep. 30, 2015
USD ($)
Customer
Sep. 30, 2014
USD ($)
Customer
Dec. 31, 2014
USD ($)
Customer
Concentration Risk [Line Items]          
Credit losses attributable to write-offs $ 1.5 $ 1.9 $ 2.2 $ 6.8  
Net Sales [Member] | Customer Concentration Risk [Member]          
Concentration Risk [Line Items]          
Number of largest customers | Customer 5 5 5 5  
Percentage of cash and cash equivalents 13.40% 14.80% 15.10% 15.90%  
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   0
Domestic [Member]          
Concentration Risk [Line Items]          
Accounts receivable $ 199.1   $ 199.1   $ 166.9
Outside U.S. [Member]          
Concentration Risk [Line Items]          
Accounts receivable 220.5   220.5   126.2
Net total assets held outside the United States $ 677.7   $ 677.7   $ 548.9