Inventories - Schedule of Costs of Products Sold (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
Inventory Disclosure [Abstract]
Loss on inventory write-down	$ 2.6	$ 29.5	$ 85.2	$ 38.1