Intangible assets - Acquired (Details) - USD ($) $ in Thousands |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|---|
| Disclosure of detailed information about intangible assets [line items] | |||
| Intangible assets | $ 5,214 | $ 20,788 | $ 3,764 |
| ERP management reporting software system | |||
| Disclosure of detailed information about intangible assets [line items] | |||
| Intangible assets | 2,714 | 3,631 | |
| Intellectual property acquired from UTC | Acquired patents, know-how and in-process research & development | |||
| Disclosure of detailed information about intangible assets [line items] | |||
| Intangible assets | 0 | 74 | |
| Intellectual property acquired from Ballard Motive Solutions (notes 7 and 27) | Acquired patents, know-how and in-process research & development | |||
| Disclosure of detailed information about intangible assets [line items] | |||
| Intangible assets | $ 2,500 | $ 17,083 |