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Taxation - Operating losses carry forwards (Details) ¥ in Thousands	Dec. 31, 2019 CNY (¥)
Taxation
Net operating losses carry forwards	¥ 284,029
Net operating losses carry forwards, expire in December 31, 2020, if unused	4,053
Net operating losses carry forwards, expire in December 31, 2021, if unused	73,599
Net operating losses carry forwards, expire in December 31, 2022, if unused	152,419
Net operating losses carry forwards, expire in December 31, 2023, if unused	45,659
Net operating losses carry forwards, expire in December 31, 2024, if unused	¥ 8,299

X

- Definition

Amount of operating loss carryforwards, that will expire in year two if unused.

+ References

No definition available.

+ Details

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X

- Definition

Amount of operating loss carryforwards, that will expire in next twelve months if unused.

+ References

No definition available.

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X

- Definition

Amount of operating loss carryforwards, that will expire in year four, if unused.

+ References

No definition available.

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- Definition

Amount of operating loss carryforwards, that will expire in year three if unused.

+ References

No definition available.

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- Definition

Amount of operating loss carryforwards, that will expire in year four, if unused.

+ References

No definition available.

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319

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