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Intangible Assets - Additional Information (Detail)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2019
CNY (¥)
Amortization of Deferred Charges [Abstract]        
Amortization expense ¥ 1,700 $ 265 ¥ 1,593 ¥ 1,763