Employee benefit plan (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Retirement Benefits [Abstract] | ||||
| Defined contribution plan, employer matching contribution, employees' gross pay (in percent) | 100.00% | |||
| Defined contribution plan, employer discretionary contribution amount | $ 0.2 | $ 0.2 | $ 0.4 | $ 0.3 |