Income taxes - Schedule of provision/(benefit) for income tax (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
U.S. federal statutory rate	21.00%	21.00%	21.00%
State taxes, net of federal benefit	8.40%	10.10%	(7.50%)
Permanent and other items	1.70%	(9.90%)	(1.00%)
Stock-based compensation	7.20%	39.30%	4.40%
Tax credits	(30.60%)	(120.00%)	13.90%
Foreign tax rate differential	(4.10%)	7.20%	(11.90%)
Foreign inclusion adjustments	29.40%	74.70%	(10.80%)
Foreign intangible amortization	0.20%	10.20%	(2.30%)
162M limitation	30.20%	103.90%	(48.60%)
Total	63.40%	136.50%	(42.80%)