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Debt - Schedule of Interest Expense (Details) - Senior Notes - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
2031 Notes
Debt Instrument [Line Items]
Contractual interest coupon	$ 18.6		$ 19.4
Amortization of issuance costs	0.6		0.6
Total	19.2		20.0
2027 Notes
Debt Instrument [Line Items]
Contractual interest coupon	0.0	$ 8.3	16.3	$ 25.0
Amortization of issuance costs	0.0	0.3	0.6	0.9
Total	$ 0.0	$ 8.6	$ 16.9	$ 25.9

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