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Accounts Receivable, Net - Additional Information (Detail) ¥ in Thousands, $ in Thousands | Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Jan. 01, 2021 CNY (¥) | Jan. 01, 2021 USD ($) | Dec. 31, 2020 CNY (¥)
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Accounts Receivable, after Allowance for Credit Loss, Current [Abstract] |  |  |  |  |
Increase in accumulated deficit | ¥ (7,458,752) | $ (1,170,441) | ¥ 5,684 | $ 892 | ¥ (5,864,356)

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