Inventories - Summary of Inventories (Details) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Inventories
Raw materials		$ 29.9	$ 59.9
Work in process		45.4	64.1
Finished goods		147.3	168.6
Total Inventories		222.6	292.6
Titled Inventory
Inventories
Raw materials		25.1	48.3
Work in process		29.9	35.0
Finished goods		112.9	124.8
Total Inventories		167.9	208.1
Supply&Offtake Agreements
Inventories
Raw materials	[1]	4.8	11.6
Work in process	[1]	15.5	29.1
Finished goods	[1]	34.4	43.8
Total Inventories	[1]	$ 54.7	$ 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.