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Inventories (Tables)
3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
Components of Inventory
The components of inventories were as follows:
(in millions)
March 31,
2019
 
December 31,
2018
Raw materials
$
65.4

 
$
55.4

Work in process
4.2

 
4.3

Finished goods
330.1

 
280.9

Total inventories
$
399.7

 
$
340.6