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Income Taxes - Additional Information (Detail) ¥ in Thousands, $ in Thousands, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 HKD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Income tax rate | 25.00% | 25.00% | 25.00% | 25.00% |  |  |  |
Unrecognized tax benefit |  | ¥ 5,480 | ¥ 5,480 | ¥ 12,987 | ¥ 5,494 |  | $ 795 | $ 795
Interest expense on unrecognized tax benefit |  | 0 | 0 | 0 |  |  |  |
Unrecognized tax benefits income tax penalties and interest accrued |  | ¥ 0 | 0 | ¥ 0 |  |  |  |
HONG KONG |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  | 16.50% | 16.50% |  |
Ehfly [Member] | HONG KONG |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  | 8.25% | 8.25% |  |
Effective income tax rate reconciliation, noncontrolling interest income (loss), amount | $ | $ 2.0 |  |  |  |  |  |  |
Ehang HK [Member] | HONG KONG |  |  |  |  |  |  |  |
Effective income tax rate reconciliation, noncontrolling interest income (loss), amount | $ | $ 2.0 |  |  |  |  |  |  |
PRC [Member] |  |  |  |  |  |  |  |
Income tax rate | 25.00% | 25.00% |  |  |  |  |  |
High and New Technology Enterprise, tax rate | 15.00% | 15.00% |  |  |  |  |  |
Deductible tax losses |  | ¥ 786,444 | 584,961 |  |  |  | 114,024 |
Effective income tax rate reconciliation qualified research and development additional deduction percent | 75.00% | 75.00% |  |  |  |  |  |
Income Tax Examination, Description | five years | five years |  |  |  |  |  |
PRC [Member] | Tax Year 2008 Onwards [Member] |  |  |  |  |  |  |  |
Effective income tax rate reconciliation qualified research and development additional deduction percent | 50.00% | 50.00% |  |  |  |  |  |
PRC [Member] | Tax Year From 2018 to 2020 [Member] |  |  |  |  |  |  |  |
Effective income tax rate reconciliation qualified research and development additional deduction percent | 75.00% | 75.00% |  |  |  |  |  |
PRC [Member] | EH Kashi Ehang Egret Media Technology Co Ltd Ehang Egret Ks [Member] |  |  |  |  |  |  |  |
High and New Technology Enterprise, tax rate |  |  |  |  |  | 15.00% |  |
Enterprise income tax preferential rate |  | ¥ 0 |  |  |  |  |  |
Income tax exemption period | 5 years | 5 years |  |  |  |  |  |
PRC [Member] | EHang intelligent [member] |  |  |  |  |  |  |  |
High and New Technology Enterprise, tax rate | 15.00% | 15.00% |  |  |  |  |  |
PRC [Member] | EHang Egret GD [Member] |  |  |  |  |  |  |  |
High and New Technology Enterprise, tax rate | 15.00% | 15.00% |  |  |  |  |  |
PRC [Member] | Ehang Intelligent Equipment Guanghou Co Ltd [Member] |  |  |  |  |  |  |  |
Effective income tax rate reconciliation qualified research and development super deduction percent | 100.00% | 100.00% |  |  |  |  |  |
PRC [Member] | Ehang Yunfu [Member] |  |  |  |  |  |  |  |
Effective income tax rate reconciliation qualified research and development super deduction percent | 100.00% | 100.00% |  |  |  |  |  |
CHINA |  |  |  |  |  |  |  |
Withholding tax rate for non-PRC resident enterprises | 10.00% | 10.00% |  |  |  |  |  |
FRANCE |  |  |  |  |  |  |  |
Income tax rate | 28.00% | 28.00% |  |  |  |  |  |
SPAIN |  |  |  |  |  |  |  |
Income tax rate | 25.00% | 25.00% |  |  |  |  |  |
Minimum [Member] | PRC [Member] |  |  |  |  |  |  |  |
Deductible tax losses, period | 5 years | 5 years |  |  |  |  |  |
Maximum [Member] | PRC [Member] |  |  |  |  |  |  |  |
Deductible tax losses, period | 10 years | 10 years |  |  |  |  |  |
Austrian Minister Of Finance [Member] |  |  |  |  |  |  |  |
Income tax rate | 25.00% | 25.00% |  |  |  |  |  |
Hong Kong [Member] | Not Expirable [Member] |  |  |  |  |  |  |  |
Deductible tax losses |  | ¥ 29,411 | ¥ 31,434 |  |  |  | $ 4,264 |

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