Other Assets and Liabilities - Other Non-Current Assets (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Other Assets and Other Liabilities [Abstract]
Right of use assets	$ 44.3	$ 53.1
Prepaid pension assets	4.0	4.0
Investments	19.3	21.8
Deferred income tax	15.4	16.0
Other	58.6	49.3
Total	$ 141.6	$ 144.2