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Debt - Schedule of Convertible Securities (Details) - Junior Convertible Trust Preferred Securities - Junior convertible securities - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Contractual interest expense	$ 18.3	$ 22.2
Amortization of debt issuance costs	0.2	0.4
Amortization of debt discount	0.0	3.1
Total	$ 18.5	$ 25.7
Effective interest rate	5.21%	5.99%

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