v3.26.1
Revenue information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disaggregation of Revenue [Line Items]      
Total revenues $ 847,858 $ 771,530 [1] $ 662,226 [1]
Revenue Benchmark | Geographic Concentration Risk | Mainland PRC      
Disaggregation of Revenue [Line Items]      
Concentration risk percentage 95.30% 97.60% 98.20%
Point in time      
Disaggregation of Revenue [Line Items]      
Total revenues $ 811,024 $ 737,418 $ 631,084
Over time      
Disaggregation of Revenue [Line Items]      
Total revenues 36,834 34,112 31,142
Sales of goods revenues      
Disaggregation of Revenue [Line Items]      
Total revenues 703,093 611,245 [1] 467,403 [1]
Automotive computing platform      
Disaggregation of Revenue [Line Items]      
Total revenues 627,067 536,582 385,886
SoC Core Modules      
Disaggregation of Revenue [Line Items]      
Total revenues 74,910 73,944 70,140
Automotive merchandise and other products      
Disaggregation of Revenue [Line Items]      
Total revenues 1,116 719 11,377
Software license revenues      
Disaggregation of Revenue [Line Items]      
Total revenues 29,698 42,455 [1] 62,796 [1]
Service revenues      
Disaggregation of Revenue [Line Items]      
Total revenues 115,067 117,830 [1] 132,027 [1]
Automotive computing Platform – Design and development service      
Disaggregation of Revenue [Line Items]      
Total revenues 69,827 78,470 94,641
Connectivity service      
Disaggregation of Revenue [Line Items]      
Total revenues 36,834 34,112 31,142
Other services      
Disaggregation of Revenue [Line Items]      
Total revenues $ 8,406 $ 5,248 $ 6,244
[1] Restated (refer to Note 2(c))