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Related Parties - Summary of Balances Outstanding with ATR's Minority Shareholder and Its Affiliates (Detail)
¥ in Thousands, $ in Thousands
Sep. 30, 2023
USD ($)
Sep. 30, 2023
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2022
CNY (¥)
Related Party Transaction [Line Items]        
Accounts receivable from related parties $ 83,148   $ 77,426  
Accounts payable to related parties 42,613   43,209  
ATR [Member]        
Other current liabilities:        
Customer deposits 380 ¥ 2,772 368 ¥ 2,542
ATR [Member] | Related Party [Member]        
Related Party Transaction [Line Items]        
Accounts receivable from related parties 133 974 1,066 7,352
Accounts payable to related parties $ 876 ¥ 6,392 $ 412 ¥ 2,841