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Special Charges (Tables)
6 Months Ended
Jun. 30, 2019
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs
 
 
Liability
December 31,
2018
 
Six Months Ended 
 June 30, 2019
 
Liability
June 30,
2019
 
 
 
Charges (Credits) for Termination Benefits
 
Paid/
Settled
 
Workforce reductions:
 
 
 
 
 
 
 
 
Corporate functions
 
$
0.9

 
$

 
$
(0.7
)
 
$
0.2

Piketon facility
 
3.2

 
(2.9
)
 
0.1

 
0.4

Total
 
$
4.1

 
$
(2.9
)
 
$
(0.6
)
 
$
0.6