Leases (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Short term lease expense description	not material	not material	not material
Material lease description	As of December 31, 2023, we did not have any material leases that have not yet commenced.
Operating lease liability	$ 27.2
Finance lease liability	26.4
Right-of-use Asset [Member]
Operating lease liability	$ 13.0
Expected lease term	5 years