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Inventories
3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
Inventories
Inventories
The following table summarizes the components of inventory:
 
March 31,
2019
 
December 31,
2018
Raw materials and supplies
$
112.5

 
$
97.7

Work in process
44.7

 
53.0

Finished goods
77.5

 
82.4

Total inventories, net
$
234.7

 
$
233.1


The allowance for excess and obsolete inventory balance at March 31, 2019 and December 31, 2018 was $8.7 and $9.0, respectively.