Income taxes - Composition of the Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal	$ 7,833	$ 1,681	$ 0
State	6,698	7,385	2,303
Foreign	6,477	4,381	2,957
Total current tax expense	21,008	13,447	5,260
Deferred:
Federal	6	(1,861)	6
State	3	(356)	6
Foreign	(1,847)	(1,127)	(739)
Total deferred tax expense (benefit)	(1,838)	(3,344)	(727)
Provision for income taxes	$ 19,170	$ 10,103	$ 4,533