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Inventories
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Inventories
8. Inventories

The components of inventories were as follows:
(in millions)
September 30,
2019
 
December 31,
2018
Raw materials
$
43.2

 
$
55.4

Work in process
3.9

 
4.3

Finished goods
265.4

 
280.9

Total inventories
$
312.5

 
$
340.6