XML 102 R50.htm IDEA: XBRL DOCUMENT v3.20.1

Organization and principal activities (Details)	12 Months Ended
	Dec. 31, 2019
Business Operation Agreement
Variable Interest Entity [Line Items]
Agreement term	10 years
Threshold period of written notice required to terminate the agreement	30 days
Exclusive Option Agreements
Variable Interest Entity [Line Items]
Threshold period of written notice required to terminate the agreement	10 years

X

- Definition

Represents the term of agreement.

+ References

No definition available.

+ Details

Name:	duo_AgreementTerm
Namespace Prefix:	duo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the threshold period of written notice required to terminate the agreement.

+ References

No definition available.

+ Details

Name:	duo_ThresholdNoticePeriodRequiredToTerminateAgreement
Namespace Prefix:	duo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=duo_BusinessOperationAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=duo_ExclusiveOptionAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: