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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Income Taxes [Line Items]        
Tax settlement $ 10.5      
Spanish tax settlement [Member]        
Income Taxes [Line Items]        
Effective tax rate 20.80% 25.50% 22.70% 22.10%
Foreign Tax Authority [Member]        
Income Taxes [Line Items]        
Provision for uncertain tax positions $ 25.4   $ 25.4  
2007-2012 [Member] | Minimum [Member]        
Income Taxes [Line Items]        
Income tax examination, years under examination     2006  
2007-2012 [Member] | Maximum [Member]        
Income Taxes [Line Items]        
Income tax examination, years under examination     2015  
Other Liabilities [Member]        
Income Taxes [Line Items]        
Unrecognized tax benefits that would impact effective tax rate 19.6   $ 19.6  
Accrued interest and penalties 0.7   0.7  
Other Current Liabilities [Member]        
Income Taxes [Line Items]        
Unrecognized tax benefits that would impact effective tax rate 4.9   4.9  
Accrued interest and penalties $ 0.2   $ 0.2