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Taxation - Schedule of Income Before Income Tax, Domestic and Foreign (Detail)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2019
CNY (¥)
Income Tax Disclosure [Abstract]        
PRC ¥ (1,646,607) $ (258,388) ¥ (1,095,015) ¥ (1,167,367)
Non-PRC 70,592 11,077 147,721 65,171
Loss before income taxes ¥ (1,576,015) $ (247,311) ¥ (947,294) ¥ (1,102,196)