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Inventory
 6 Months Ended
Jan. 31, 2018
Inventory Disclosure [Abstract]  
Inventory

4. Inventory

The components of inventory, net of allowance for obsolete, unmarketable or slow-moving inventories, are summarized as follows:  

 

 

 

As of

 

 

As of

 

 

 

January 31,

 

 

July 31,

 

(in millions)

 

2018

 

 

2017

 

Raw materials

 

$

60.9

 

 

$

62.8

 

Work in process

 

 

42.7

 

 

 

41.8

 

Finished goods

 

 

23.8

 

 

 

26.0

 

Total inventory

 

$

127.4

 

 

$

130.6