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Debt (Narrative - Debt Transactions) (Details) - USD ($) $ in Millions		1 Months Ended
	Apr. 01, 2021	Apr. 30, 2022	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022	Apr. 06, 2021
Term Loan | 2023 Term Loan A
Debt Instrument [Line Items]
Principal amount of debt redeemed or repaid		$ 193.6
Principal amount of debt still outstanding with a maturity of March 22, 2023						$ 215.1
Term Loan | 2026 Term Loan A
Debt Instrument [Line Items]
Principal amount of debt instrument amended						444.9
Term Loan | Term Loan B
Debt Instrument [Line Items]
Debt instrument, principal amount repurchased					$ 96.0
Debt instrument, amount paid for repurchases					$ 95.3
Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount of debt instrument amended						1,250.0
Revolving credit facility, maximum borrowing capacity			$ 1,250.0
Principal amount of debt still outstanding with a maturity of March 22, 2023						$ 250.0
Senior Notes | 5.875% Senior Notes
Debt Instrument [Line Items]
Principal amount of debt redeemed or repaid	$ 518.7
Coupon rate	5.875%
Debt instrument, redemption premium	$ 15.2
Senior Notes | 6.375% Senior Notes
Debt Instrument [Line Items]
Principal amount of debt redeemed or repaid	$ 545.6
Coupon rate	6.375%
Debt instrument, redemption premium	$ 17.4
Senior Notes | 5.500% Senior Notes
Debt Instrument [Line Items]
Debt instrument, principal amount repurchased			85.0
Debt instrument, amount paid for repurchases			$ 61.4
Coupon rate	5.50%		5.50%
Principal amount of notes	$ 1,000.0
Senior Notes | 5.500% Senior Notes One
Debt Instrument [Line Items]
Debt instrument, principal amount repurchased				$ 200.0
Debt instrument, amount paid for repurchases				$ 135.0

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