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Income taxes - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Income Taxes [Line Items] |  |
Net deferred tax asset | $ 88,203 | $ 96,997
Non-current deferred tax assets | 90,287 | 98,163
Non-current deferred tax liabilities | 2,084 | $ 1,166
Temporary differences related to investments in foreign subsidiaries | 354,156 |
Tax expense related to pillar two | 0 |
Tax Year 2009 to 2017 |  |
Income Taxes [Line Items] |  |
Estimate of possible loss | $ 165,000 |

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