Restructuring and Other Charges - Summary of the Activity in the Restructuring Related Accruals (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Restructuring Reserve [Roll Forward]
Restructuring, Incurred Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Restructuring and other
Additional paid-in capital	$ 2,345.9		$ 2,271.6
Restructuring Plan
Restructuring Reserve [Roll Forward]
Accrued restructuring costs as of December 31, 2023	7.4	$ 0.0
Restructuring costs incurred during the nine months ended September 30, 2023	10.6	27.1
Amount paid during the three months ended March 31, 2024	(8.0)	(6.4)
Accrued restructuring costs as of March 31, 2024	$ 10.0	$ 20.7