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Goodwill and Other Intangible Assets - Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 389.4	$ 386.2	$ 379.7	$ 391.3
Total other intangible assets, net	517.7	524.4
Total goodwill and other intangible assets, net	$ 907.1	$ 910.6

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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