Additional Balance Sheet and Cash Flow Information - Schedule of Inventories, Net (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Inventory [Line Items] | ||
| Raw materials and work in process | $ 338,744 | $ 353,819 |
| Inventory at lower of FIFO cost or net realizable value | 870,462 | 875,852 |
| Excess of FIFO over LIFO cost | (139,564) | (130,059) |
| Total inventories, net | 730,898 | 745,793 |
| Motorcycle finished goods | ||
| Inventory [Line Items] | ||
| Inventory, finished goods, net of inventory valuation adjustment | 434,044 | 411,442 |
| Parts and accessories and apparel | ||
| Inventory [Line Items] | ||
| Inventory, finished goods, net of inventory valuation adjustment | $ 97,674 | $ 110,591 |