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Schedule of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2025	Aug. 18, 2025	Dec. 31, 2024	Nov. 07, 2024
Debt Instrument [Line Items]
Long-term debt	$ 1,173.5		$ 472.5
8.25 Percent Note
Debt Instrument [Line Items]
Long-term debt, face amount	74.3
2.25 Percent Convertible Note
Debt Instrument [Line Items]
Long-term debt, face amount				$ 402.5
0.0 Percent Convertible Note
Debt Instrument [Line Items]
Long-term debt, face amount		$ 805.0
Long-term debt	782.9
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt, interest	1,207.5		486.0
Long-term debt, current	0.0		6.1
Senior Notes [Member] | 8.25 Percent Note
Debt Instrument [Line Items]
Long-term debt, face amount	0.0		74.3
Long-term debt, interest	0.0		9.2
Long-term debt, current	0.0		6.1
Senior Notes [Member] | 2.25 Percent Convertible Note
Debt Instrument [Line Items]
Long-term debt, face amount	402.5		402.5
Senior Notes [Member] | 0.0 Percent Convertible Note
Debt Instrument [Line Items]
Long-term debt, face amount	$ 805.0	$ 805.0	$ 0.0

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