v3.26.1
Related Parties - Summary of Balances Outstanding with ATR's Minority Shareholder and Its Affiliates (Detail)
¥ in Thousands, $ in Thousands
Mar. 31, 2026
USD ($)
Mar. 31, 2026
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
CNY (¥)
Related Party Transaction [Line Items]        
Accounts receivable from related parties $ 93,581   $ 78,981  
Accounts payable to related parties 49,167   46,268  
Related Party [Member] | ATR [Member]        
Related Party Transaction [Line Items]        
Accounts receivable from related parties 2,597 ¥ 17,766 2,390 ¥ 16,723
Accounts payable to related parties $ 636 ¥ 4,394 $ 69 ¥ 481