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Inventories (Tables)
 6 Months Ended
May 31, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory Inventories, net, consisted of the following:
 
May 31, 2019
 
November 30, 2018
 
(Dollars in millions)
Raw materials and supplies
$
34.7

 
$
35.0

Work-in-process
5.3

 
5.3

Finished goods
67.0

 
63.5

Inventories, gross
107.0

 
103.8

LIFO reserve
(16.7
)
 
(18.1
)
Obsolescence reserve
(7.4
)
 
(6.9
)
Inventories, net
$
82.9

 
$
78.8