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Software and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Finite-Lived Intangible Assets [Line Items]
Other intangible assets amortization expense	$ 5.3	$ 7.1	$ 15.8	$ 23.8
Software for Internal Use
Finite-Lived Intangible Assets [Line Items]
Software, amortization expense	$ 15.7	$ 16.6	$ 46.9	$ 47.9
Minimum | Software for Internal Use
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	3 years		3 years
Maximum | Software for Internal Use
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	8 years		8 years

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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