Financial Services Arrangements - Financial Information for Polaris Acceptance Reflecting Effects of Securitization Facility (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Investments [Line Items]
Net income	$ 447.1	$ 493.9	$ 124.8
Total Assets	5,217.9	5,047.8
Total Liabilities and Partners' Capital	5,217.9	5,047.8
Polaris Acceptance
Schedule of Investments [Line Items]
Revenues	49.7	21.9	44.7
Interest and operating expenses	19.5	6.6	7.6
Net income	30.2	15.3	$ 37.1
Finance receivables, net	1,314.2	470.7
Other assets	20.9	29.1
Total Assets	1,335.1	499.8
Notes Payable	1,076.0	366.9
Other liabilities	73.0	34.4
Partners' capital	186.1	98.5
Total Liabilities and Partners' Capital	$ 1,335.1	$ 499.8
Polaris Acceptance | Maximum
Schedule of Investments [Line Items]
Aggregate repurchase obligation	15.00%