Other Assets and Liabilities - Schedule of Other Non-Current Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Other Assets and Other Liabilities [Abstract]
Right of use assets	$ 48.6	$ 43.1
Prepaid pension assets	5.6	5.6
Investments	21.4	20.6
Deferred income tax	16.2	17.2
Long-term contract assets	21.1	18.0
Prepaid cloud computing fees and deferred implementation costs	29.0	23.2
Other	64.7	60.1
Total	206.6	$ 187.8
Right-of-use assets recognized during period	$ 9.6