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Inventories
3 Months Ended
Mar. 31, 2017
Inventory Disclosure [Abstract]  
Inventories
Inventories
The components of inventories as of March 31, 2017 and December 31, 2016 are summarized as follows:
(in millions)
 
March 31,
2017
 
December 31,
2016
Inventories:
 
 

 
 

Raw materials
 
$
118.8

 
$
109.3

Work-in-process
 
112.3

 
88.4

Finished goods
 
272.1

 
270.9

Total inventories
 
503.2

 
468.6

Excess and obsolete inventory reserve
 
(41.9
)
 
(39.6
)
Inventories — net
 
$
461.3

 
$
429.0