Property and Equipment - Summary (Details) - USD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 212.2	$ 194.5
Less accumulated depreciation and amortization	(163.6)	(143.4)
Property and equipment, net	48.6	51.1
Distribution equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	19.3	19.3
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	31.7	31.1
Furniture, fixtures and office equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	4.4	4.4
Computer equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	25.9	25.6
Capitalized software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 130.9	$ 114.1

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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