v3.26.1
Acquisitions - Additional information (Details)
¥ in Thousands, kr in Thousands, $ in Thousands
6 Months Ended 12 Months Ended
Jul. 31, 2024
USD ($)
Jul. 31, 2024
CNY (¥)
May 20, 2024
USD ($)
May 20, 2024
CNY (¥)
Jan. 31, 2024
USD ($)
Jan. 31, 2024
CNY (¥)
Jun. 30, 2023
USD ($)
Jun. 30, 2023
CNY (¥)
Jun. 30, 2024
SEK (kr)
Jun. 30, 2024
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
CNY (¥)
Jun. 30, 2025
Dec. 31, 2024
USD ($)
Jan. 31, 2024
CNY (¥)
Jan. 30, 2024
Jun. 29, 2023
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Deferred tax liabilities                     $ 1,689     $ 2,056      
Intangible assets                     $ 78,370     66,927      
Developed technology                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Intangible assets, estimated useful life         10 years           10 years       10 years    
Developed technology                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Intangible assets         $ 19,315           $ 19,851     $ 18,874 ¥ 138,569    
Suzhou Photon-Matrix                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Deferred tax liabilities         $ 4,788                   ¥ 34,348    
Suzhou Photon-Matrix                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Ownership interest         62.27%                   62.27% 49.17%  
JICA                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Payment to acquire business             $ 27,367 ¥ 201,000                  
Consideration transferred, liabilities incurred                     9,408 ¥ 65,667          
Dongjun Group                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Amount of cash consideration     $ 3,230 ¥ 23,500                          
Payment to acquire business $ 1,616 ¥ 11,750 $ 1,614               $ 1,614            
Equity interest percentage     51.00% 51.00%                          
Fair value of derecognized investment     $ 3,039 ¥ 22,200                          
Gain on equity method investment derecognized     $ 161 ¥ 1,174                          
Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Remeasurement, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]     Other non-operating (expenses) income, net Other non-operating (expenses) income, net                          
Hubei ECARX                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Payable to acquire interest in subsidiary                 kr 21,271 $ 1,915              
Hubei ECARX | Suzhou Photon-Matrix                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Asset acquisition, interest percentage 0.69% 0.69%     13.10%                   13.10%    
Asset acquisition, consideration transferred $ 332       $ 6,422 ¥ 46,306                      
Asset acquisition difference amount $ 295                                
Hubei ECARX | JICA                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Amount of cash consideration             $ 36,775 ¥ 266,667                  
Hubei ECARX | JICA | JICA                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Controlling interest, percent                         70.00%        
JICA | JICA | Hubei ECARX                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Equity interest                                 50.00%
Geely Auto | JICA | JICA | JICA                                  
Investments in and Advances to Affiliates, Activity [Line Items]                                  
Equity interest (as a percent)                                 50.00%