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Inventories
6 Months Ended
Jun. 30, 2013
Inventory Disclosure [Abstract]  
Inventories
Inventories:
     
The components of inventories are as follows (in millions):

 
As of June 30, 2013
 
As of December 31, 2012
Finished goods
$
331.4

 
$
258.0

Work in process
14.5

 
12.0

Raw materials and parts
199.1

 
180.1

 
545.0

 
450.1

Excess of current cost over last-in, first-out cost
(75.8
)
 
(75.3
)
Total inventories, net
$
469.2

 
$
374.8