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Inventories
9 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Inventories
Inventories
The following table summarizes the components of inventory:
 
September 30,
2018
 
December 31,
2017
Raw materials and supplies
$
86.7

 
$
72.1

Work in process
32.5

 
37.1

Finished goods
69.0

 
64.5

Total inventories, net
$
188.2

 
$
173.7


The allowance for excess and obsolete inventory balance at September 30, 2018 and December 31, 2017 was $7.5 and $7.1, respectively.