Quarterly report pursuant to Section 13 or 15(d)

Business and Credit Concentrations - Additional Information (Detail)

v2.4.0.8
Business and Credit Concentrations - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Customer
Sep. 30, 2012
Customer
Sep. 30, 2013
Customer
Sep. 30, 2012
Customer
Dec. 31, 2012
Concentration Risk [Line Items]          
Losses due to company's credit write-offs $ 1.3 $ 0.3 $ 2.3 $ 1.5  
Net assets held outside the United States 379.1   379.1   387.2
Number of customers accounting for more than 10% of sales 0 0 0 0  
Number of customers accounting for more than 10% of accounts receivable 0   0    
Number of largest customers 5 5 5 5  
Sales [Member] | Customer Concentration Risk [Member]
         
Concentration Risk [Line Items]          
Percentage of net sales to largest customers 17.90% 16.70% 18.30% 19.20%  
United States [Member]
         
Concentration Risk [Line Items]          
Accounts receivable 152.5   152.5   111.8
Foreign Countries [Member]
         
Concentration Risk [Line Items]          
Accounts receivable $ 133.9   $ 133.9   $ 118.8