Debt (Schedule of Debt) (Details) - USD ($) $ in Millions	Jun. 30, 2024	Mar. 31, 2024
Debt Instrument [Line Items]
Total corporate debt	$ 2,219.5	$ 2,508.5
Unamortized debt issuance costs	(25.0)	(28.5)
Total debt, net	2,194.5	2,480.0
Less current portion	(649.6)	(860.3)
Non-current portion of debt	1,544.9	1,619.7
Revolving Credit Facility
Debt Instrument [Line Items]
Total corporate debt	585.0	575.0
Term Loans \| Term Loan A
Debt Instrument [Line Items]
Total corporate debt	314.4	399.3
Term Loans \| Term Loan B
Debt Instrument [Line Items]
Total corporate debt	605.1	819.2
Senior Notes \| 5.500% Senior Notes
Debt Instrument [Line Items]
Total corporate debt	$ 715.0	$ 715.0
Coupon rate	5.50%

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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