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Commitments and Contingencies (Details) - CNY (¥) ¥ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Commitments and Contingencies.
Capital investment commitment	¥ 300,019	¥ 301,444

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- Definition

The Maximum Amount Of Additional Capital Commitment

+ References

No definition available.

+ Details

Name:	duo_MaximumAmountOfAdditionalCapitalCommitment
Namespace Prefix:	duo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration