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Inventories (Tables)
 3 Months Ended
Mar. 31, 2017
Inventories  
Schedule of inventories

Inventories consisted of the following (in millions):

 

 

 

March 31,

 

December 31,

 

 

 

2017

 

2016

 

Raw materials

 

$
140.4

 

$
132.8

 

Work-in-process

 
195.2

 
181.0

 

Finished goods

 
104.7

 
91.8

 

Demonstration units

 
36.1

 
34.8

 

 

 

 

 

 

 

Inventories

 

$
476.4

 

$
440.4