Related party transactions - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Related Party Transaction [Line Items]
Related party receivables	$ 4,005	$ 3,121
Related party accrued cost of revenue	5,915	1,718
Accounts payable	17,867	12,995
Alpha Steel [Member]
Related Party Transaction [Line Items]
Related party receivables	4,000	3,100
Related party accrued cost of revenue	5,900	1,700
Total received Invoices from Alpha Steel	2,900	7,600
Purchase commitment of contractual obligations	4,000
Accounts payable	$ 3,200	$ 500