Derivative Financial Instruments and Hedging Activities - Schedule of Amount of Gains and Losses Recognized in Income Related to Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Derivative
Motorcycles and related products cost of goods sold	$ 750,793	$ 924,012	$ 1,521,579	$ 1,947,693
Selling, administrative and engineering expense	300,557	304,008	556,214	597,105
Interest expense	7,696	7,680	15,382	15,359
Financial services interest expense	93,574	93,741	182,508	182,480
Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments
Derivative
Gain/(Loss) Reclassified from AOCL into Income	122,059	(7,248)	159,479	(35,754)
Foreign currency contracts \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments
Derivative
Gain/(Loss) Reclassified from AOCL into Income	5,749	3,447	9,148	6,969
Foreign currency contracts \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments \| Motorcycles and related products cost of goods sold
Derivative
Gain/(Loss) Reclassified from AOCL into Income	5,749	3,447	9,148	6,969
Commodity contracts \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments
Derivative
Gain/(Loss) Reclassified from AOCL into Income	0	(93)	58	(244)
Commodity contracts \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments \| Motorcycles and related products cost of goods sold
Derivative
Gain/(Loss) Reclassified from AOCL into Income	0	(93)	58	(244)
Cross-currency swaps \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments
Derivative
Gain/(Loss) Reclassified from AOCL into Income	116,669	(10,413)	150,989	(42,146)
Cross-currency swaps \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments \| Selling, administrative & engineering expense
Derivative
Gain/(Loss) Reclassified from AOCL into Income	116,669	(10,413)	150,989	(42,146)
Treasury rate lock contracts \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments
Derivative
Gain/(Loss) Reclassified from AOCL into Income	(211)	(41)	(422)	(37)
Treasury rate lock contracts \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments \| Interest expense
Derivative
Gain/(Loss) Reclassified from AOCL into Income	(91)	(91)	(182)	(182)
Treasury rate lock contracts \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments \| Financial services interest expense
Derivative
Gain/(Loss) Reclassified from AOCL into Income	(120)	50	(240)	145
Swap rate lock contracts \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments
Derivative
Gain/(Loss) Reclassified from AOCL into Income	(148)	(148)	(294)	(296)
Swap rate lock contracts \| Cash Flow Hedging \| Derivative Financial Instruments Designated as Cash Flow Hedging Instruments \| Financial services interest expense
Derivative
Gain/(Loss) Reclassified from AOCL into Income	$ (148)	$ (148)	$ (294)	$ (296)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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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.

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This element represents interest incurred for borrowed money which was used to produce goods or render services.

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Amount of interest expense classified as nonoperating.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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