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Leases - Lease cost allocated expense items (Details) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Leases
Total	¥ 54,746	¥ 51,503	¥ 51,397
Selling, general and administrative expenses
Leases
Total	31,246	28,272	20,359
Research and development expenses
Leases
Total	¥ 23,500	¥ 23,231	¥ 31,038

X

- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
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X

- 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

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- Details

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