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Property and Equipment (Summary) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, net	$ 81.2	$ 91.1
Depreciation expense	43.0	44.0	$ 45.6
Distribution Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18.8	15.2
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	43.5	42.9
Property and Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	25.3	16.7
Computer Equipment and Software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	219.7	197.0
Depreciable Assets
Property, Plant and Equipment [Line Items]
Property and equipment, gross	307.3	271.8
Less accumulated depreciation and amortization	(227.3)	(181.9)
Property and equipment, net	80.0	89.9
Land
Property, Plant and Equipment [Line Items]
Property and equipment, net	$ 1.2	$ 1.2

X

- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

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