Derivative Instruments and Hedging Activities - Schedule of Amounts Recorded in Accompanying Unaudited Condensed Consolidated Balance Sheets Related to Use of Derivatives (Details) - USD ($) $ in Millions	Dec. 31, 2024	Mar. 31, 2024
Derivatives, Fair Value [Line Items]
Derivative asset, current	$ 0.0	$ 35.6
Derivative asset, noncurrent	$ 0.7	$ 0.0
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other current assets	Other current assets
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other assets
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities, Current	Accrued Liabilities, Current
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset, current	$ 1.9	$ 35.6
Derivative asset, noncurrent	0.7
Derivative liability, current	0.0	2.8
Designated as Hedging Instrument | Forward exchange contracts
Derivatives, Fair Value [Line Items]
Derivative asset, current	1.9	0.0
Derivative asset, noncurrent	0.0
Derivative liability, current	0.0	2.8
Designated as Hedging Instrument | Interest rate swaps
Derivatives, Fair Value [Line Items]
Derivative asset, current	0.0	35.6
Derivative asset, noncurrent	0.7
Derivative liability, current	$ 0.0	$ 0.0