Revenue from contracts with customers - Schedule of Deferred Revenue from customers (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Deferred revenue from customers as of January 1	$ 1,224	$ 700
Consideration received in the period	2,538	6,715
Revenue from customers recognized in the period	(3,611)	(6,191)
Deferred revenue from customers as of December 31	$ 151	$ 1,224