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Employee Benefit Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Executive Deferred Compensation Plan | Executive Officer      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Requisite service period (years) 5 years    
Deferred compensation expense $ 1.7 $ 1.9 $ 2.3
Deferred compensation liability 31.1 43.6  
Foreign Benefit Plans      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cost recognized $ 4.2 5.5 6.6
401(k) Savings and Investment Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Requisite service period (years) 1 month    
Maximum annual contributions per employee (percent) 100.00%    
Employer discretionary contribution (percent) 50.00%    
Cost recognized $ 3.8 $ 3.4 $ 3.5
401(k) Savings and Investment Plan | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Employer discretionary contribution percent (percent) 4.00%    
401(k) Savings and Investment Plan | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Employer matching contribution (percent) 3.00%    
Employer discretionary contribution percent (percent) 6.00%