Segment Reporting (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment	3
Segment Reporting Information [Line Items]
Sales	$ 8,589.0	$ 7,439.2	$ 6,281.4
Gross profit	1,959.5	1,750.9	1,535.7
Boats
Segment Reporting Information [Line Items]
Sales	989.4	760.2	603.4
Off-Road Segment
Segment Reporting Information [Line Items]
Sales	6,436.2	5,574.6	4,810.0
On-Road Segment
Segment Reporting Information [Line Items]
Sales	1,163.4	1,031.8	806.7
Operating Segments [Member] | Boats
Segment Reporting Information [Line Items]
Sales	989.4	760.2	603.4
Gross profit	222.5	170.6	116.4
Operating Segments [Member] | Off-Road Segment
Segment Reporting Information [Line Items]
Sales	6,436.2	5,574.6	4,810.0
Gross profit	1,523.4	1,329.8	1,302.0
Operating Segments [Member] | On-Road Segment
Segment Reporting Information [Line Items]
Sales	1,163.4	1,031.8	806.7
Gross profit	206.3	160.7	95.5
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Sales	0.0	72.6	61.3
Gross profit	$ 7.3	$ 89.8	$ 21.8