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Prepayments and other assets - Rental and other deposit (Details) - CNY (¥) ¥ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Prepayment and other assets
Rental and other deposits	¥ 9,656	¥ 25,030
Less: Allowance for doubtful accounts	(3,984)	(12,395)
Rental and other deposits, net	¥ 5,672	¥ 12,635

X

- Definition

The amount of allowance for doubtful rental and other deposits.

+ References

No definition available.

+ Details

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

X

- Definition

The amount of rental and other deposits.

+ References

No definition available.

+ Details

Name:	duo_RentalAndOtherDeposits
Namespace Prefix:	duo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The gross amount of rental and other deposits.

+ References

No definition available.

+ Details

Name:	duo_RentalAndOtherDepositsGross
Namespace Prefix:	duo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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