Fixed Assets, Net - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment
Depreciation expense	$ 39.2	$ 42.4	$ 22.0
Impairment charges	$ 3.2	$ 14.0	$ 0.0
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]	Depreciation and amortization	Depreciation and amortization	Depreciation and amortization
Software, including software development costs
Property, Plant and Equipment
Software development costs capitalized	$ 12.5	$ 12.3	$ 0.7
Amortization of software development costs	$ 2.9	$ 2.1	$ 1.3