Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Goodwill [Roll Forward]
Balance as of December 31, 2022	$ 386.2	$ 391.3
Currency translation effect on foreign goodwill balances	(1.0)	(11.6)
Balance as of September 30, 2023	389.4	379.7
Goodwill, Acquired During Period	4.2
Off Road
Goodwill [Roll Forward]
Balance as of December 31, 2022	110.7	111.7
Currency translation effect on foreign goodwill balances	(0.3)	(1.5)
Balance as of September 30, 2023	114.6	110.2
Goodwill, Acquired During Period	4.2
On Road
Goodwill [Roll Forward]
Balance as of December 31, 2022	48.4	52.5
Currency translation effect on foreign goodwill balances	(0.7)	(10.1)
Balance as of September 30, 2023	47.7	42.4
Marine
Goodwill [Roll Forward]
Balance as of December 31, 2022	227.1	227.1
Balance as of September 30, 2023	$ 227.1	$ 227.1