Revenue recognition - Schedule of Deferred Revenue, by Arrangement, Disclosure (Detail) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Revenue Recognition and Deferred Revenue [Abstract] | ||||
| Beginning balance | $ 13,390 | $ 2,499 | $ 2,499 | $ 3,155 |
| Deferred Revenue Recognized | 10,413 | 106 | 13,390 | 2,499 |
| Revenue Recognized | (15,296) | (2,439) | (2,499) | (3,155) |
| Ending balance | $ 8,507 | $ 166 | $ 13,390 | $ 2,499 |