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Debt (Gain (Loss) on Extinguishment of Debt) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Extinguishment of Debt [Line Items]
Gain (loss) on extinguishment of debt	$ (0.5)	$ 0.0	$ (6.4)	$ 21.2
Senior Notes
Extinguishment of Debt [Line Items]
Gain (loss) on extinguishment of debt	0.0	0.0	(4.9)	21.2
Exchange Notes
Extinguishment of Debt [Line Items]
Gain (loss) on extinguishment of debt			4.9
Term Loan A and Term Loan B Facility
Extinguishment of Debt [Line Items]
Gain (loss) on extinguishment of debt	$ (0.5)	$ 0.0	$ (1.5)	$ 0.0

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481303/470-50-40-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481303/470-50-40-4

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