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Special Charges (Table) (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2018
Dec. 31, 2017
Termination benefit costs $ 1.4  
Payments for one-time termination benefits (4.1)  
Restructuring liability 3.8 $ 6.5
Contract Termination [Member]    
Termination benefit costs 0.1  
Payments for one-time termination benefits (2.6)  
Restructuring liability 3.2 5.7
Other Restructuring [Member]    
Termination benefit costs 1.3  
Payments for one-time termination benefits (1.5)  
Restructuring liability $ 0.6 $ 0.8