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Other Intangible Assets - Narrative (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Intangible Assets, Net (Excluding Goodwill) [Abstract]        
Amortization expense $ 10.7 $ 12.9 $ 34.2 $ 39.0