Derivative financial instruments - Schedule of fair value of derivative instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Offsetting Liabilities [Line Items]
Current assets	$ 550	$ 1,070
Non-current assets	236	1,267
Net derivative assets (liabilities)	786	2,337
Current assets	4,206	4,063
Non-current assets	14,575	7,205
Current liabilities	(4,206)	(4,063)
Non-current liabilities	(14,575)	(7,205)
Total current position	550	1,070
Total non-current position	236	1,267
Total derivatives	$ 786	$ 2,337

Total Current Position

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Total Derivatives

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Total Long Term Position

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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Carrying amount as of the balance sheet date of the asset arising from derivative instruments and hedging activities, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer.

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Carrying amount as of the balance sheet date of the assets arising from derivative contracts and hedging activities, which are expected to be converted into cash or otherwise disposed of after a year or beyond the normal operating cycle, if longer.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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