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Derivative Financial Instruments and Fair Value Measurements - Fair Value of Derivative and Non-Derivative Assets and Liabilities on the Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Mar. 31, 2024	Mar. 31, 2023
Derivatives, Fair Value [Line Items]
Assets	$ 15.9	$ 38.4
Liabilities	1,013.0	1,063.8
Not designated as hedging instrument | Foreign currency forward contracts | Prepaid expenses and other assets
Derivatives, Fair Value [Line Items]
Assets	1.3	6.7
Liabilities	4.3	2.3
Fair Value Hedge | Designated as hedging instrument | Cross-currency swap | Prepaid expenses and other assets
Derivatives, Fair Value [Line Items]
Assets	14.6	31.7
Net Investment Hedging | Designated as hedging instrument | Cross-currency swap | Accrued liabilities
Derivatives, Fair Value [Line Items]
Liabilities	41.9	73.3
Net Investment Hedging | Designated as hedging instrument | Euro Notes due in 2026 | Long-term debt
Derivatives, Fair Value [Line Items]
Liabilities	538.1	550.0
Net Investment Hedging | Designated as hedging instrument | Euro Notes Due In 2027 | Long-term debt
Derivatives, Fair Value [Line Items]
Liabilities	$ 428.7	$ 438.2

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