Other Intangible Assets - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortization expense	$ 9.8	$ 10.7	$ 28.4	$ 34.2

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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+ Details