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Description of the Business and Summary of Significant Accounting Policies - Concentrations of risk (Narrative) (Details) - Trade and Other Receivables - Customer Concentration Risk	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Customer B
Concentration Risk [Line Items]
Concentration risk, percentage	49.00%	48.00%
Customer A
Concentration Risk [Line Items]
Concentration risk, percentage		11.00%

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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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