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Income Taxes - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Reduction due to transition tax further analysis of accumulated earnings and foreign taxes paid $ 13.9    
Effective tax rate 9.20% 68.60% 16.50%
One-time transition tax $ 13.0 $ 48.7  
Operating loss carryforwards 92.0    
Tax Credit Carryforward [Line Items]      
Valuation allowance on deferred tax assets 172.1 $ 182.5  
Unrecognized tax benefits that would impact effective tax rate 1.1    
Luxembourg      
Tax Credit Carryforward [Line Items]      
Valuation allowance on deferred tax assets 156.5    
Spain      
Tax Credit Carryforward [Line Items]      
Valuation allowance on deferred tax assets 8.6    
Philippines      
Tax Credit Carryforward [Line Items]      
Valuation allowance on deferred tax assets 2.2    
Brazil      
Tax Credit Carryforward [Line Items]      
Tax credit carryforward, valuation allowance 3.9    
State      
Tax Credit Carryforward [Line Items]      
Valuation allowance on deferred tax assets 0.9    
State | Tax Year 2019 - 2037      
Tax Credit Carryforward [Line Items]      
Tax credits $ 1.3