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Revenue recognition - Significant Changes in Contract Assets and Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Contract Asset |  |
Beginning balance | $ 14,754 | $ 18,037
Acquired as part of a business combination | 62,439 |
Increases due to rights to consideration for customer specific goods produced, but not billed during the period | 67,062 | 14,754
Transferred to receivables from contract assets recognized at the beginning of the period and acquired as part of business combination | (77,193) | (18,037)
Ending balance | 67,062 | 14,754
Contract Liability |  |
Beginning balance | (15,252) | (12,588)
Acquired as part of a business combination | (47,478) | (1,436)
Revenue deferred or rebates accrued | (25,736) | (25,094)
Recognized as revenue | 2,341 | 1,936
Rebates paid to customers | 26,101 | 21,930
Ending balance | $ (60,024) | $ (15,252)

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