Summary of significant accounting policies - Other Intangible Assets, Net (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets, finite-lived	$ 0	$ 0	$ 0
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life (in years)	2 years 6 months
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life (in years)	12 years