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Inventories (Tables)
6 Months Ended
Jun. 30, 2015
Inventory Disclosure [Abstract]  
Components of Inventories
The following table summarizes the components of inventories:
(in millions)
June 30,
2015
 
December 31,
2014
Raw materials
$
46.6

 
$
53.1

Work in progress
24.2

 
23.7

Finished goods
49.3

 
44.2

Total inventories
$
120.1

 
$
121.0