Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Goodwill [Roll Forward]
Balance as of December 31, 2023	$ 394.4	$ 386.2
Currency translation effect on foreign goodwill balances	(2.0)	1.3
Balance as of March 31, 2024	392.4	387.5
Off Road
Goodwill [Roll Forward]
Balance as of December 31, 2023	116.6	110.7
Currency translation effect on foreign goodwill balances	(0.4)	0.1
Balance as of March 31, 2024	116.2	110.8
On Road
Goodwill [Roll Forward]
Balance as of December 31, 2023	50.7	48.4
Currency translation effect on foreign goodwill balances	(1.6)	1.2
Balance as of March 31, 2024	49.1	49.6
Marine
Goodwill [Roll Forward]
Balance as of December 31, 2023	227.1	227.1
Currency translation effect on foreign goodwill balances	0.0	0.0
Balance as of March 31, 2024	$ 227.1	$ 227.1