Summary of Significant Accounting Policies - Goodwill and Other Indefinite-Lived Intangible Assets (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) segment item	Dec. 31, 2023 USD ($) segment item	Dec. 31, 2022 USD ($) item segment
Goodwill and Other Indefinite-Lived Intangible Assets
Number of operating segments | segment	1	1	1
Number of reportable segments | item	1	1	1
Impairment of goodwill	$ 0.0	$ 0.0
Impairment loss of intangible assets with indefinite life	$ 11.2	$ 0.0	$ 0.0
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]	Asset Impairment Charges	Asset Impairment Charges	Asset Impairment Charges