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Income Taxes - Additional Information (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 CNY (¥) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 | Dec. 31, 2021 USD ($)
Income Tax Disclosure [Line Items] |  |  |  |  |
Deferred tax assets related to net operating loss carry forwards |  | ¥ 218,042 | ¥ 164,559 |  | $ 34,216
Interest and penalties related to an uncertain tax position |  | ¥ 0 | ¥ 0 |  |
Income tax examination, description |  | In accordance with relevant PRC tax administration laws, the tax year from 2016 through 2021 remain open to examination by the respective tax authorities. |  |  |
Minimum |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Open tax examination year |  | 2016 |  |  |
Maximum |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Open tax examination year |  | 2021 |  |  |
VIE | Minimum |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Deferred tax assets operating loss carry forwards expiration year |  | 2022 |  |  |
VIE | Maximum |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Deferred tax assets operating loss carry forwards expiration year |  | 2031 |  |  |
WFOE | Minimum |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Deferred tax assets operating loss carry forwards expiration year |  | 2022 |  |  |
WFOE | Maximum |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Deferred tax assets operating loss carry forwards expiration year |  | 2031 |  |  |
Hong Kong |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Effective profits tax rate |  | 16.50% |  |  |
PRC |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Effective statutory enterprise income tax rate |  | 25.00% | 25.00% | 25.00% |
Effective preferential income tax rate | 15.00% | 15.00% | 15.00% |  |

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