Related Parties - Summary of Sales to and Purchases from ATR's Minority Shareholder and Its Affiliates (Detail) ¥ in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2024 USD ($)	Dec. 31, 2024 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 CNY (¥)
Related Party Transaction [Line Items]
Sales	$ 418,305		$ 422,340
ATR [Member]
Related Party Transaction [Line Items]
Purchases	6,388	¥ 45,886	7,331	¥ 51,851
Related Party [Member] \| ATR [Member]
Related Party Transaction [Line Items]
Sales	$ 15,506	¥ 111,384	$ 2,939	¥ 20,786

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details