Leases (Payment for Operating Leases Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating leases expense	$ 4.1	$ 2.8	$ 3.0
Short-term leases expense	0.7	0.6	0.3
Payments on operating lease obligations	$ 4.0	$ 3.1	$ 2.8