Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense of intangible assets		$ 21.9	$ 17.7	$ 18.8
Estimated Future Amortization Expense by Fiscal Year [Abstract]
2025	$ 23.9	23.9
2026	23.9	23.9
2027	23.9	23.9
2028	23.9	23.9
2029	23.9	23.9
Goodwill [Line Items]
Other intangible assets impaired	9.5	$ (9.5)
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]		General and administrative
Off Road
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss	60.8	$ 60.8
On Road
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss	$ 20.3	$ 20.3
Aftermarket
Goodwill [Line Items]
Goodwill, Impairment Loss					$ 270.3