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INVENTORIES
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
INVENTORIES
INVENTORIES
 
($ in millions)
September 30, 2019
 
December 31, 2018
Raw materials
$
48.5

 
$
46.4

Building materials for resale
3.6

 
2.8

Other
1.8

 
2.0

Total
$
53.9

 
$
51.2