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Property, plant and equipment - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Property, plant and equipment
Depreciation expense	$ 2.1	$ 2.3
Cost of sales
Property, plant and equipment
Depreciation expense	$ 1.6	$ 1.6

X

- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

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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