The amount of government grants related to unfulfilled obligations.

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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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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of investment in equity security without readily determinable fair value.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Summary of Significant Accounting Policies - Additional information (Details) ¥ in Thousands	12 Months Ended
	Dec. 31, 2023 CNY (¥) segment	Dec. 31, 2022 CNY (¥)	Dec. 31, 2021 CNY (¥)	Jul. 31, 2022 CNY (¥)
Concentration Risk [Line Items]
Government grants related to unfulfilled obligations	¥ 53,668	¥ 0	¥ 0
Government grants income	14,280	10,825	27,446
Income tax, unrecognized	¥ 0	0	¥ 0
Number of operating segments \| segment	2
Fair value investments recognized	¥ 0	¥ 0		¥ 30,000
Revenue \| Customer concentration \| Customer A
Concentration Risk [Line Items]
Percentage of concentration risk	25.60%	24.30%
Revenue \| Customer concentration \| Customer B
Concentration Risk [Line Items]
Percentage of concentration risk	28.40%	13.70%	17.50%
Revenue \| Customer concentration \| Customer C
Concentration Risk [Line Items]
Percentage of concentration risk			12.70%
Accounts receivables \| Customer concentration \| Customer A
Concentration Risk [Line Items]
Percentage of concentration risk	41.30%	61.00%
Accounts receivables \| Customer concentration \| Customer B
Concentration Risk [Line Items]
Percentage of concentration risk	10.20%	15.30%
Accounts receivables \| Customer concentration \| Customer D
Concentration Risk [Line Items]
Percentage of concentration risk	11.20%
Accounts payable \| Supplier concentration \| Supplier A
Concentration Risk [Line Items]
Percentage of concentration risk		12.30%	13.70%