Restructuring costs (Details)	3 Months Ended	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Restructuring costs
Workforce reductions	226
Workforce reduction
Restructuring costs
Accrued workforce reduction costs, Beginning of period		$ 900,000	$ 5,000,000
Workforce reduction costs accrued	$ 10,300,000	10,300,000	2,000,000
Workforce reduction costs paid		(2,400,000)	(6,000,000)
Currency translation adjustments, net			(100,000)
Accrued workforce reduction costs, end of period	8,800,000	$ 8,800,000	900,000
Facility Closing
Restructuring costs
Workforce reduction costs accrued			2,000,000
Accelerated depreciation			$ 14,000,000
Selling, General and Administrative Expenses [Member]
Restructuring costs
Workforce reduction costs accrued	$ 6,400,000
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, General and Administrative Expense
Cost of sale
Restructuring costs
Workforce reduction costs accrued	$ 3,900,000
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of Product and Service Sold