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Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Tax Contingency [Line Items]        
Deferred taxes and other included a deferred tax benefit $ 15.1 $ 2.3 $ 1.5  
Other taxes total expense 3.6 0.1 1.8  
Federal income tax rate 35.00% 35.00% 35.00%  
Valuation allowance 6.2 30.5    
Research and development, tax credit 3.0 0.4 1.0  
Unremitted earnings, reinvested 288.8 236.3    
Deferred tax liability         
Gross unrecognized tax benefits 14.9 30.4 29.7 38.7
Unrecognized tax benefits that would impact effective tax rate 14.9      
Lower range of gross unrecognized tax benefits balance may decrease within the next twelve months 0      
Higher range of gross unrecognized tax benefits balance may decrease within the next twelve months 5.4      
United States - State [Member]
        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards 92.1      
Tax credit carryforwards 0.4      
United States - State [Member] | Minimum [Member]
        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards expiration date 2014      
Tax credit carryforwards expiration year 2014      
United States - State [Member] | Maximum [Member]
        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards expiration date 2033      
Tax credit carryforwards expiration year 2027      
Foreign Tax Authority [Member]
        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards 32.7      
Tax credit carryforwards $ 3.8      
Foreign Tax Authority [Member] | Minimum [Member]
        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards expiration date 2014      
Tax credit carryforwards expiration year 2019      
Foreign Tax Authority [Member] | Maximum [Member]
        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards expiration date 2033      
Tax credit carryforwards expiration year 2033