Other Assets and Liabilities - Schedule of Other Non-Current Assets (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Other Assets And Other Liabilities [Abstract]
Right of use assets	$ 45.5	$ 43.1
Prepaid pension assets	5.7	5.6
Investments	31.8	20.6
Deferred income tax	17.3	17.2
Long-term contract assets	27.1	18.0
Prepaid cloud computing fees and deferred implementation costs	37.9	23.2
Other	90.6	60.1
Total	255.9	$ 187.8
Right-of-use assets recognized during period	$ 12.5