Leases - Supplemental Cash Flow (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating cash outflow from operating leases	$ 8.7	$ 6.5
Operating cash inflow from operating subleases	0.4	0.0
RoU assets obtained in exchange for lease liabilities for operating leases	$ 0.0	$ 11.0