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Income Taxes (Details) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax [Line Items]
Enterprise income tax	(0.14%)	(0.02%)	0.45%
Retained earnings	¥ 0	¥ 0	¥ 0
United States
Income Tax [Line Items]
Applicable income tax rate	27.98%	27.98%	27.98%
PRC
Income Tax [Line Items]
Enterprise income tax	25.00%
Preferential tax rate	15.00%	15.00%	15.00%
HNTE status review period	3 years
Percentage of tax deductible expenses engaged in R&D activities			200.00%
Percentage of withholding tax on foreign investors, non-resident enterprises	10.00%

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Percentage of domestic federal, state and local statutory tax rate applicable to pretax income (loss).

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The percentage of tax deductible R&D expenses engaged in such activities.

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The percentage of withholding tax on foreign investors, non-resident enterprises.

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The preferential statutory rate granted to some entities under the income tax law.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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A segregation of retained earnings which is unavailable for dividend distribution. Includes also retained earnings appropriated for loss contingencies.

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