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Taxation - Movement of Deferred Tax Valuation Allowance (Details) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Balance at beginning of the year	¥ 367,884	¥ 344,165
Additions, net of foreign exchange impacts	(105,629)	23,719	¥ 27,805
Balance at end of the year	¥ 262,255	¥ 367,884	¥ 344,165

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- Definition

Deferred tax asset valuation allowance additions net of foreign exchange impacts.

+ References

No definition available.

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X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-2

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- References

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