Related Parties - Summary of Balances Outstanding with ATR's Minority Shareholder and Its Affiliates (Detail) ¥ in Thousands, $ in Thousands	Mar. 31, 2024 USD ($)	Mar. 31, 2024 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 CNY (¥)
Related Party Transaction [Line Items]
Accounts receivable from related parties	$ 84,281		$ 78,939
Accounts payable to related parties	41,387		36,830
ATR [Member]
Related Party Transaction [Line Items]
Customer deposits	105	¥ 761	149	¥ 1,056
ATR [Member] \| Related Party [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	0	0	190	1,350
Accounts payable to related parties	$ 1,068	¥ 7,713	$ 401	¥ 2,841

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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- Definition

Amount of deposits held by the entity for a related party (entity, shareholder, employee).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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