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Income Taxes - Summary of Reconciliation of Unrecognized Tax Benefit (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2022 CNY (¥) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2020 CNY (¥)
Income Tax Disclosure [Abstract] |  |  |  |
Balance at the beginning of the year | ¥ (5,480) | $ (795) | ¥ (12,987) | ¥ (5,494)
Additions based on tax positions related to the current year | 0 | 0 |  | (7,673)
Reductions for tax positions of prior years | 0 | 0 | 7,507 | 180
Balance at end of the year | ¥ (5,480) | $ (795) | ¥ (5,480) | ¥ (12,987)

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- Definition Unrecognized Tax Benefits Gross. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
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- Definition Amount of decrease in unrecognized tax benefits resulting from acquisitions. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Amount of increase in unrecognized tax benefits resulting from acquisitions. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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