Summary Of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Accounting Policies [Abstract]
Impairment charges	$ 0.0	$ 960.5	$ 212.3
Goodwill, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration]		Goodwill and intangible asset impairments	Goodwill and intangible asset impairments
Impairment of intangible assets	0.0	$ 101.1	$ 46.0
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]		Goodwill and intangible asset impairments
Impairment of intangible assets, finite-lived	0.0	$ 92.2	0.0
Net foreign currency transaction gains (losses)	$ (30.5)	$ 9.0	$ (9.4)