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Significant Accounting Policies - Goodwill (Details) - CNY (¥)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Significant Accounting Policies
Goodwill impairment charges	¥ 0	¥ 0	¥ 0

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- References

No definition available.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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-Publisher FASB
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-Publisher FASB
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-URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

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