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Inventories (Tables)
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Components of Inventories
The following table summarizes the components of Inventories:
(in millions)
September 30,
2019
 
December 31,
2018
Finished goods
$
85.1

 
$
78.3

Raw materials
85.5

 
66.3

Work in process
18.5

 
12.7

Total inventories (a)
$
189.1

 
$
157.3


(a)
Amounts at September 30, 2019 include inventories acquired in the MRL acquisition - see Note 2 – Acquisitions.