Segment reporting - Major customers (Details) - customer |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Geographical information | ||||
| Number of major customers | 2 | |||
| Customer A | ||||
| Geographical information | ||||
| Revenue percentage | 64.00% | 61.00% | 64.00% | 60.00% |
| Customer B | ||||
| Geographical information | ||||
| Revenue percentage | 15.00% | 16.00% | 15.00% | 16.00% |