Goodwill and Other Intangible Assets - Estimated Amortization Expense (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Goodwill [Line Items]
Amortization of intangible assets	$ 5.9	$ 6.0	$ 17.9	$ 15.9
Estimated Future Amortization Expense by Fiscal Year [Abstract]
Remainder 2025	6.0		6.0
2026	23.9		23.9
2027	23.9		23.9
2028	23.9		23.9
2029	23.9		23.9
2030	$ 23.9		$ 23.9

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

Polaris Inc. 10-Q