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Goodwill and intangible assets - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025
Goodwill And Intangible Assets Disclosure [Line Items] |  |  |  |  |
Goodwill deductible for tax purposes | $ 196,284 |  | $ 196,284 |  | $ 210,585
Amortization of acquired intangible assets | 3,287 | $ 4,317 | 6,399 | $ 8,637 |
Internally Developed and Other Intangible Assets |  |  |  |  |
Goodwill And Intangible Assets Disclosure [Line Items] |  |  |  |  |
Amortization of acquired intangible assets | $ 2,286 | $ 700 | $ 4,070 | $ 1,318 |

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