Inventories (Tables)

9 Months Ended

Sep. 30, 2019

Inventory Disclosure [Abstract]

Schedule of Inventories by Major Class

The following schedule details inventories by major class ($ in millions):

	September 30, 2019		December 31, 2018
Raw materials	$	53.2	$	50.2
Work in process	24.8		22.4
Finished goods	62.3		69.9
Supplies and other	9.1		9.0
Total	$	149.4	$	151.5