Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Inventories - Components of Inventories (Details)

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Inventories - Components of Inventories (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Mar. 31, 2020
Inventory Disclosure [Abstract]    
Finished goods $ 149.9 $ 224.4
Work-in-process 17.9 25.2
Raw materials and supplies 60.4 69.9
Provision for obsolete finished goods and raw materials (9.9) (14.4)
Total inventories $ 218.3 $ 305.1