Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Goodwill [Roll Forward]
Balance as of December 31, 2022	$ 386.2	$ 391.3
Currency translation effect on foreign goodwill balances	1.2	(5.8)
Balance as of June 30, 2023	387.4	385.5
Off Road
Goodwill [Roll Forward]
Balance as of December 31, 2022	110.7	111.7
Currency translation effect on foreign goodwill balances	(0.1)	(0.5)
Balance as of June 30, 2023	110.6	111.2
On Road
Goodwill [Roll Forward]
Balance as of December 31, 2022	48.4	52.5
Currency translation effect on foreign goodwill balances	1.3	(5.3)
Balance as of June 30, 2023	49.7	47.2
Marine
Goodwill [Roll Forward]
Balance as of December 31, 2022	227.1	227.1
Balance as of June 30, 2023	$ 227.1	$ 227.1