Intangible assets - Acquired (Details) - USD ($) $ in Thousands |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|---|
| Disclosure of detailed information about intangible assets [line items] | |||
| Intangible assets | $ 1,406 | $ 5,214 | $ 20,788 |
| ERP management reporting software system | |||
| Disclosure of detailed information about intangible assets [line items] | |||
| Intangible assets | 1,406 | 2,714 | |
| Intellectual property acquired from Ballard Motive Solutions | Acquired patents, know-how and in-process research & development | |||
| Disclosure of detailed information about intangible assets [line items] | |||
| Intangible assets | $ 0 | $ 2,500 |