Additional Balance Sheet and Cash Flow Information - Schedule of Inventories, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024
Inventory
Raw materials and work in process	$ 322,451	$ 353,819	$ 297,580
Inventory at lower of FIFO cost or net realizable value	764,293	875,852	799,749
Excess of FIFO over LIFO cost	(134,006)	(130,059)	(130,825)
Total inventories, net	630,287	745,793	668,924
Deposits	537,900	550,600	504,100
Motorcycle finished goods
Inventory
Inventory, finished goods, net of inventory valuation adjustment	333,347	411,442	368,692
Parts and accessories and apparel
Inventory
Inventory, finished goods, net of inventory valuation adjustment	$ 108,495	$ 110,591	$ 133,477