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Employee Benefit Plans (Details 1) - Foreign Plan - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
SWITZERLAND      
Employee Benefit Plans (Textual) [Abstract]      
Percentage of minimum investment return 1.00% 1.00% 1.25%
Unfunded net pension $ 48.6 $ 48.3  
Employee Benefit Plan obligations 93.1 83.7  
Pension Cost (Reversal of Cost) 14.8 12.3 $ 15.3
GERMANY      
Employee Benefit Plans (Textual) [Abstract]      
Employee Benefit Plan obligations 45.3 43.5  
Periodic pension cost 5.3 5.2 4.2
Other income (expense) | SWITZERLAND      
Employee Benefit Plans (Textual) [Abstract]      
Pension Cost (Reversal of Cost) 1.3 1.1 2.2
Other income (expense) | GERMANY      
Employee Benefit Plans (Textual) [Abstract]      
Periodic pension cost $ 1.5 $ 1.4 $ 1.1