v3.26.1
Investment in associates - Narrative (Details)
12 Months Ended
Nov. 15, 2023
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
vehicle
Dec. 31, 2023
USD ($)
Nov. 23, 2023
USD ($)
Disclosure of associates [line items]          
Property, plan and equipment investment         $ 8,159,000
Polestar Technology          
Disclosure of associates [line items]          
Proportion of proportionate share percentage   0.40      
Xingji Meizu          
Disclosure of associates [line items]          
Proportion of proportionate share percentage   0.60      
Polestar Times Technology          
Disclosure of associates [line items]          
Operating expense   $ 1,130,000      
Other operating income from corporate services   15,499,000 $ 3,544,000 $ 23,400,000  
Total for all related parties          
Disclosure of associates [line items]          
Revenue from sale of goods, related party transactions   352,292,000 $ 276,313,000 138,674,000  
Polestar Technology, Polestar and Nanjing Jiangning Economic and Technological Development Zone          
Disclosure of associates [line items]          
Purchase of interests in associates   $ 98,000,000.0      
Proportion of ownership interest in subsidiary   46.20%      
Polestar Technology, Polestar and Nanjing Jiangning Economic and Technological Development Zone | Total for all related parties          
Disclosure of associates [line items]          
Proportion of ownership interest in subsidiary     46.20%    
Xingji Meizu | Total for all related parties          
Disclosure of associates [line items]          
Proportion of ownership interest in subsidiary     48.10%    
Nanjing | Total for all related parties          
Disclosure of associates [line items]          
Proportion of ownership interest in subsidiary     5.70%    
Polestar Times Technology          
Disclosure of associates [line items]          
Purchase of interests in associates   $ 54,092,000      
Percentage of entity's revenue 2.00%        
Royalty income   1,200,000 $ 0    
Polestar Times Technology | Total for all related parties          
Disclosure of associates [line items]          
Revenue from sale of goods, related party transactions   $ 21,858,000 69,478,000    
Revenue from sale of goods, related party transactions, at point in time     $ 38,180,000 $ 31,298,000  
Number of vehicles delivered, unpaid | vehicle     416    
Revenue from sale of goods     $ 15,981,000