Balance Sheet Components - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | $ 129,809 | $ 122,253 |
| Less: Accumulated depreciation and amortization | (48,112) | (43,573) |
| Property and equipment, net | 81,697 | 78,680 |
| Computers, Equipment, and Software [Member] | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 13,543 | 12,664 |
| Furniture and Fixtures [Member] | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 1,047 | 1,047 |
| Leasehold Improvements [Member] | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 416 | 416 |
| Capitalized Internal-Use Software Costs [Member] | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 92,172 | 74,395 |
| Construction in Progress Capitalized Internal Use Software Costs [Member] | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | $ 22,631 | $ 33,731 |