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Note 22 - Deferred tax assets and liabilities - Net Deferred Tax Liabilities (Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024
Note 22 - Deferred tax assets and liabilities |  |  |  |  |
Deferred tax assets |  | $ 834,168 |  | $ 831,298 |
Deferred tax liabilities |  | 442,248 |  | 503,941 |
Net deferred tax liability (asset) |  | 391,920 |  | 327,357 |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |  |  |  |
At the beginning of the year |  | 327,357 |  | 158,010 |
Translation differences |  | 1,309 |  | (764) |
Changes due to business combinations |  |  | [1] | (1,761) | [2]
Changes due to deconsolidation of subsidiaries | [3] | 8 |  |  |
Charged to other comprehensive income |  | 1,646 |  | (217) |
Income statement credit |  | 61,600 |  | 172,089 |
At the end of the year |  | $ 391,920 |  | $ 327,357 |
[1] | For the year 2024, related to Mattr’s pipe coating business unit acquisition.
[2] | For the year 2024, related to Mattr’s pipe coating business unit acquisitions.
[3] | For the year 202 5, related to the deconsolidation of Amaja Tubular Services Limited.

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