Debt - Schedule of the Change in Debt (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument
Beginning balance			$ 575.2
Borrowings			12.2	$ 211.8
Repayments			(24.3)	(10.5)
Ending balance	$ 564.7		564.7
Kudu Credit Facility
Debt Instrument
Beginning balance			208.3
Ending balance	203.7		203.7
Secured Debt | Kudu Credit Facility
Debt Instrument
Beginning balance	210.3	$ 260.4	215.2	225.4
Borrowings	0.0	0.0	12.0	35.0
Repayments	0.0	0.0	(16.9)	0.0
Ending balance	$ 210.3	$ 260.4	$ 210.3	$ 260.4