Organization and Nature of Operations - Summary of Major Subsidiaries, VIE and Subsidiaries of VIE (Detail)	12 Months Ended
Dec. 31, 2022
Schedule Of The Companies Major Subsidaries And Variable Interest Enitities [Line Items]
Place of incorporation/ establishment	E9
Ehfly Technology Limited ("Ehfly") [Member]
Schedule Of The Companies Major Subsidaries And Variable Interest Enitities [Line Items]
Date of incorporation/ establishment	Dec. 05, 2014
Place of incorporation/ establishment	K3
Percentage of direct ownership	100.00%
Percentage of indirect ownership	0.00%
Principal activities	Product sales investment holding
EHang Intelligent Equipment (Guangzhou) Co., Ltd. ("EHang Intelligent" or the "WFOE") [Member]
Schedule Of The Companies Major Subsidaries And Variable Interest Enitities [Line Items]
Date of incorporation/ establishment	Oct. 15, 2015
Place of incorporation/ establishment	F4
Percentage of direct ownership	100.00%
Percentage of indirect ownership	0.00%
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 Enitities [Line Items]
Date of incorporation/ establishment	Jun. 15, 2020
Place of incorporation/ establishment	F4
Percentage of direct ownership	68.50%
Percentage of indirect ownership	0.00%
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 Enitities [Line Items]
Date of incorporation/ establishment	Aug. 08, 2014
Place of incorporation/ establishment	F4
Percentage of direct ownership	0.00%
Percentage of indirect ownership	100.00%
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 Enitities [Line Items]
Date of incorporation/ establishment	Mar. 11, 2021
Place of incorporation/ establishment	F4
Percentage of direct ownership	0.00%
Percentage of indirect ownership	100.00%
Principal activities	Operational flight services

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
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