Organization and Nature of Operations - Summary of Major Subsidiaries, VIE and Subsidiaries of VIE (Detail)	12 Months Ended
Dec. 31, 2025
Schedule Of The Companies Major Subsidaries And Variable Interest Entities [Line Items]
Place of incorporation/ establishment	E9
Ehfly Technology Limited ("Ehfly") [Member]
Schedule Of The Companies Major Subsidaries And Variable Interest Entities [Line Items]
Date of incorporation/ establishment	Dec. 05, 2014
Place of incorporation/ establishment	K3
Percentage of direct ownership	100.00%
Principal activities	Product sales, investment holding
EHang Intelligent Equipment Co., Ltd. ("EHang Intelligent" or the "WFOE")
Schedule Of The Companies Major Subsidaries And Variable Interest Entities [Line Items]
Date of incorporation/ establishment	Oct. 15, 2015
Place of incorporation/ establishment	F4
Percentage of direct ownership	100.00%
Principal activities	Research and development, manufacturing and product sales
Yunfu EHang Intelligent Technology Limited ("EHang Yunfu") [Member]
Schedule Of The Companies Major Subsidaries And Variable Interest Entities [Line Items]
Date of incorporation/ establishment	Jun. 15, 2020
Place of incorporation/ establishment	F4
Percentage of direct ownership	96.20%
Principal activities	Research and development, manufacturing and product sales
Guangzhou EHang Intelligent Technology Co., Ltd. ("EHang GZ" or the "VIE") [Member]
Schedule Of The Companies Major Subsidaries And Variable Interest Entities [Line Items]
Date of incorporation/ establishment	Aug. 08, 2014
Place of incorporation/ establishment	F4
Principal activities	Research and development, manufacturing and product sales
Guangdong EHang General Aviation Co., Ltd. ("EHang Aviation") [member]
Schedule Of The Companies Major Subsidaries And Variable Interest Entities [Line Items]
Date of incorporation/ establishment	Mar. 11, 2021
Place of incorporation/ establishment	F4
Principal activities	Operational flight services
Guangdong EHang Egret Media Technology Co. Ltd. ("EHang Egret GD") [Member]
Schedule Of The Companies Major Subsidaries And Variable Interest Entities [Line Items]
Date of incorporation/ establishment	Jul. 06, 2016
Place of incorporation/ establishment	F4
Principal activities	Operational aerial media solutions services

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
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