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Investments and fair value measurements - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
Fair Value Disclosures [Abstract] |  |  |
Impairment of strategic investment | $ 1,800 | $ 1,800 |
Strategic investment’s cost basis | 15,000 | 15,000 |
Strategic investments | 10,311 | 10,311 | $ 12,104
Cumulative impairment charges | $ 4,700 | $ 4,700 |

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