Inventories (Tables)

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Schedule of Inventories by Major Class

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

	March 31, 2020		December 31, 2019
Raw materials	$	67.4	$	61.1
Work in process	23.1		20.7
Finished goods	59.8		65.3
Supplies and other	9.2		14.3
Total	$	159.5	$	161.4