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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Income Taxes [Line Items]        
Tax settlement $ 10.5      
Spanish tax settlement [Member]        
Income Taxes [Line Items]        
Effective tax rate 23.20% 23.10% 23.30% 20.40%
Foreign Tax Authority [Member]        
Income Taxes [Line Items]        
Provision for uncertain tax positions $ 26.0   $ 26.0  
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 25.1   $ 25.1  
Accrued interest and penalties $ 0.9   $ 0.9