Inventories - Summary of Inventories (Details) - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Inventories
Raw materials		$ 41.6	$ 59.9
Work in process		52.2	64.1
Finished goods		146.6	168.6
Total Inventories		240.4	292.6
Titled Inventory
Inventories
Raw materials		32.1	48.3
Work in process		26.1	35.0
Finished goods		109.0	124.8
Total Inventories		167.2	208.1
Supply&Offtake Agreements
Inventories
Raw materials	[1]	9.5	11.6
Work in process	[1]	26.1	29.1
Finished goods	[1]	37.6	43.8
Total Inventories	[1]	$ 73.2	$ 84.5

[1] Amounts represent LIFO value and do not necessarily represent the value of product financing. Please read Note 7 - “Inventory Financing Agreements” for further information.