v3.26.1
Organization and Nature of Operations - Additional Information (Detail)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2025
USD ($)
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]          
Net Income (Loss) ¥ (275,977) $ (39,465) ¥ (229,776) ¥ (301,700)  
Net loss (276,411) (39,527) (230,032) (302,341)  
Accumulated deficit (2,262,358)   (1,984,851)   $ (323,513)
Net cash used in operating activities (179,506) (25,668) 157,959 (88,410)  
Cash and cash equivalents, at carrying value 256,400   610,877   36,665
Short-term investments 843,232   513,683   120,581
Restricted short-term deposits 29,655   30,295   4,241
Variable Interest Entity, Primary Beneficiary [Member]          
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]          
Net loss 68,366 9,776 66,234 (5,234)  
Net cash used in operating activities 33,738 $ 4,824 11,695 ¥ 14,870  
Cash and cash equivalents, at carrying value ¥ 20,719   ¥ 6,866   $ 2,963
Variable Interest Entity, Primary Beneficiary [Member] | Revenue Benchmark [Member] | Revenue From Variable Interest Entity And Its Subsidiaries [Member]          
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]          
Concentration risk, percentage 1.60% 1.60% 1.22% 7.86%  
Exclusive Consulting And Service Agreement [Member] | EHang Intelligent Equipment (Guangzhou) Co., Ltd. ("EHang Intelligent" or the "WFOE") [Member]          
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]          
Percentage of consolidated net profits agreed to pay as a service fee 100.00% 100.00%      
Nominee Shareholder [Member] | EHang Intelligent Equipment (Guangzhou) Co., Ltd. ("EHang Intelligent" or the "WFOE") [Member]          
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]          
Interest-free loans granted, aggregate amount ¥ 60,000        
Consulting and service agreement term The Exclusive Technical Consulting and Service Agreement and the Exclusive Services Agreement are valid for 10 years and shall be automatically renewed for successive ten-year periods without limitation on the number of renewals The Exclusive Technical Consulting and Service Agreement and the Exclusive Services Agreement are valid for 10 years and shall be automatically renewed for successive ten-year periods without limitation on the number of renewals      
Variable Interest Entity and Its Subsidaries [Member]          
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]          
Net Income (Loss) ¥ 52,435 $ 7,498 ¥ (51,893) ¥ (26,013)