Debt (Schedule of Debt) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Apr. 01, 2021	Mar. 31, 2021
Debt Instrument [Line Items]
Total corporate debt	$ 2,499.6		$ 2,676.9
Unamortized debt issuance costs	(64.6)		(46.0)
Total debt, net	2,435.0		2,630.9
Less current portion	(40.0)		(88.0)
Non-current portion of debt	2,395.0		2,542.9
Revolving Credit Facility
Debt Instrument [Line Items]
Total corporate debt	0.0		0.0
Term Loan \| 2023 Term Loan A
Debt Instrument [Line Items]
Total corporate debt	204.3		660.0
Term Loan \| 2026 Term Loan A
Debt Instrument [Line Items]
Total corporate debt	444.9		0.0
Term Loan \| Term Loan B
Debt Instrument [Line Items]
Total corporate debt	850.4		952.6
Senior Notes \| 5.500% Senior Notes
Debt Instrument [Line Items]
Total corporate debt	$ 1,000.0		0.0
Coupon rate	5.50%	5.50%
Senior Notes \| 5.875% Senior Notes
Debt Instrument [Line Items]
Total corporate debt	$ 0.0		518.7
Coupon rate	5.875%	5.875%
Senior Notes \| 6.375% Senior Notes
Debt Instrument [Line Items]
Total corporate debt	$ 0.0		$ 545.6
Coupon rate	6.375%	6.375%

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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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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