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Loss Per Share - Summary of Computation of Basic and Diluted Net Loss Per Share (Detail) ¥ / shares in Units, $ / shares in Units, ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 CNY (¥) ¥ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 CNY (¥) ¥ / shares shares	Dec. 31, 2020 CNY (¥) ¥ / shares shares
Numerator:
Net loss attributable to EHang Holdings Limited	¥ (328,221)	$ (47,587)	¥ (313,959)	¥ (87,619)
Earnings Per Share, Basic, Other Disclosure [Abstract]
Weighted-average number of ordinary shares outstanding, Basic	114,695	114,695	112,985	109,563
Weighted-average number of ordinary shares outstanding, Diluted	114,695	114,695	112,985	109,563
Loss per share, Basic | (per share)	¥ (2.86)	$ (0.41)	¥ (2.78)	¥ (0.8)
Loss per share, Diluted | (per share)	¥ (2.86)	$ (0.41)	¥ (2.78)	¥ (0.8)
Common Class A [Member]
Numerator:
Net loss attributable to EHang Holdings Limited	¥ (214,390)	$ (31,083)	¥ (193,772)	¥ (51,294)
Net loss attributable to ordinary shareholders	¥ (214,390)	$ (31,083)	¥ (193,772)	¥ (51,294)
Earnings Per Share, Basic, Other Disclosure [Abstract]
Weighted-average number of ordinary shares outstanding, Basic	74,917,000	74,917,000	69,733,000	64,143,000
Weighted-average number of ordinary shares outstanding, Diluted	74,917,000	74,917,000	69,733,000	64,143,000
Loss per share, Basic | (per share)	¥ (2.86)	$ (0.41)	¥ (2.78)	¥ (0.8)
Loss per share, Diluted | (per share)	¥ (2.86)	$ (0.41)	¥ (2.78)	¥ (0.8)
Common Class B [Member]
Numerator:
Net loss attributable to EHang Holdings Limited	¥ (113,831)	$ (16,504)	¥ (120,187)	¥ (36,325)
Net loss attributable to ordinary shareholders	¥ (113,831)	$ (16,504)	¥ (120,187)	¥ (36,325)
Earnings Per Share, Basic, Other Disclosure [Abstract]
Weighted-average number of ordinary shares outstanding, Basic	39,778,000	39,778,000	43,252,000	45,420,000
Weighted-average number of ordinary shares outstanding, Diluted	39,778,000	39,778,000	43,252,000	45,420,000
Loss per share, Basic | (per share)	¥ (2.86)	$ (0.41)	¥ (2.78)	¥ (0.8)
Loss per share, Diluted | (per share)	¥ (2.86)	$ (0.41)	¥ (2.78)	¥ (0.8)

X

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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