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Significant Accounting Policies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Significant Accounting Policies [Line Items]        
Highly liquid investments included in cash and cash equivalents, maturity period 3 months      
Allowances for doubtful accounts $ 6.8 $ 9.0    
Inventories 471.6 357.2    
Unrecognized tax benefits pertaining to uncertain tax positions 23.7 20.8 35.4 38.8
Reasonably possible decrease in total unrecognized tax benefits, minimum (2.5)      
Reasonably possible decrease in total unrecognized tax benefits, maximum (3.5)      
Selling, general and administrative expenses 1,043.1 976.9 900.6  
Advertising costs 205.3 182.4 180.4  
Research and development expenses 55.6 47.0 35.1  
Estimated amount of net foreign currency derivative gains in other comprehensive income reclassified to earnings 1.3      
Cash flow | Foreign exchange contracts
       
Significant Accounting Policies [Line Items]        
Gain (loss) reclassified from Accumulated OCI into earnings 2.3 0.6 (0.5)  
Selling, General and Administrative Expenses
       
Significant Accounting Policies [Line Items]        
Customer program costs 46.0 46.2 47.4  
Shipping And Handling Expense
       
Significant Accounting Policies [Line Items]        
Selling, general and administrative expenses 189.7 181.3 164.1  
Advertising
       
Significant Accounting Policies [Line Items]        
Selling, general and administrative expenses 148.6 132.5 130.6  
Advertising costs, reduction to net sales 56.7 49.9 49.8  
Income Approach
       
Significant Accounting Policies [Line Items]        
Goodwill Recoverabilty Weighted Percentage 80.00%      
Market Approach
       
Significant Accounting Policies [Line Items]        
Goodwill Recoverabilty Weighted Percentage 20.00%      
Metals inventories
       
Significant Accounting Policies [Line Items]        
LIFO inventories 228.8 163.6    
Inventories $ 257.5 $ 193.9