Restructuring charges - Narrative (Details) $ in Thousands			3 Months Ended		12 Months Ended
	Sep. 11, 2024 employee	Feb. 13, 2023	Dec. 31, 2025 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, number of positions eliminated | employee	280
Restructuring and related cost, number of positions eliminated with no future service requirement percent	0.57
Restructuring and related cost, incurred to date			$ 18,300		$ 18,300
Reduction in global workforce, percent		10.00%
Restructuring charges			$ 1,600	$ 10,100	1,578	$ 16,685	$ 10,263
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				8,900	$ 1,578	$ 16,331	$ 9,055
Stock-based Compensation Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 1,200