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Leases - Additional Information (Detail) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021 CNY (¥)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 CNY (¥)
Leases [Abstract]
Weighted average remaining lease term for operating lease	8 years 3 months 18 days	8 years 3 months 18 days	9 years 8 months 12 days
Weighted average discount rate for operating lease	6.18%	6.18%	6.36%
Operating lease cost	¥ 65,641	$ 10,301	¥ 52,890
Short-term lease cost	¥ 11,317	$ 1,776	¥ 3,036

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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