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Inventories (Tables)
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Components of Inventories
The following table summarizes the components of inventories:
(in millions)
March 31,
2014
 
December 31,
2013
Raw materials
$
50.6

 
$
46.1

Work in progress
26.9

 
24.3

Finished goods
43.9

 
39.4

Total inventories
$
121.4

 
$
109.8