Investments Accounted for Using Equity Method - Summary of Investments Accounted for Using Equity Method (Detail) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025 CNY (¥)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 CNY (¥)
Schedule of Equity Method Investments [Line Items]
Beginning balance	¥ 23,897
Ending balance	28,849	$ 4,125	¥ 23,897
Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Beginning balance	23,897		13,450
Additions	10,200		14,800
Shares of results of equity method investees	(5,248)		(4,353)
Ending balance	¥ 28,849	$ 4,125	¥ 23,897

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

- 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.

+ References + Details