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Inventories (Tables)
9 Months Ended
Sep. 30, 2013
Inventory Disclosure [Abstract]  
Components of Inventories
The following table summarizes the components of inventories:
 
(in millions)
September 30,
2013
 
December 31,
2012
Raw materials
$
47.6

 
$
56.8

Work in progress
24.0

 
26.8

Finished goods
39.7

 
36.3

Total inventories
$
111.3

 
$
119.9