Property, Equipment, and Software, Net (Details) - USD ($) $ in Thousands |
Sep. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Total property, equipment, and software | $ 312,060 | $ 106,582 |
| Less: accumulated depreciation and amortization | (44,622) | (24,499) |
| Property, equipment, and software, net | 267,438 | 82,083 |
| Facility equipment and other tangible property | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property, equipment, and software | 80,049 | 27,785 |
| Purchased and internal-use software and website development | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property, equipment, and software | 45,995 | 34,100 |
| Leasehold improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property, equipment, and software | 13,440 | 10,933 |
| Assets not placed in service | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property, equipment, and software | $ 172,576 | $ 33,764 |