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Inventories (Tables)
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Components of Inventory
The components of inventories, net of reserves as of September 30, 2019 and December 31, 2018 were as follows:
 
September 30,
2019
 
December 31,
2018
Manufacturing supplies

$52.2

 

$46.9

Raw materials
38.5

 
35.2

Work in process
112.6

 
155.7

Finished products
133.0

 
142.8

Gross inventory
336.3

 
380.6

Allowance for surplus and obsolete inventory
(5.5
)
 
(5.1
)
LIFO reserve
(51.4
)
 
(78.7
)
Total Inventories, net

$279.4

 

$296.8