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Inventories
 9 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Inventories
Inventories

The components of inventory were as follows:
 
September 30,
2018
 
December 31,
2017
Raw materials and supplies
$
136.7

 
$
132.9

Work in process
30.3

 
27.7

Finished products
81.1

 
82.4

Inventory reserves
(35.9
)
 
(38.1
)
 
$
212.2

 
$
204.9