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Total of the carrying values as of the balance sheet date of obligations incurred for deposits with real estate developers, in respect of the deposits payments or refund transactions directly made by the funds providers to property developers. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

No definition available.

Name:	duo_DepositsWithRealEstateDevelopers
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Total of the carrying values as of the balance sheet date of obligations incurred for down payments collected on behalf of secondary property sellers. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

No definition available.

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

Total of the carrying values as of the balance sheet date of obligations incurred for amounts due to equity method investees under collaborative agreements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

No definition available.

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

Total of the carrying values as of the balance sheet date of obligations incurred for amounts due to equity method investees in respect of the deposits payments or refund transactions directly made by the funds providers to property developers. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

No definition available.

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Balance Type:	credit
Period Type:	instant

Total of the carrying values as of the balance sheet date of obligations incurred for amounts due to franchisees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

No definition available.

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

Total of the carrying values as of the balance sheet date of obligations incurred for amounts due to third parties under collaborative agreements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

No definition available.

Name:	duo_DueToThirdPartiesCurrent
Namespace Prefix:	duo_
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Balance Type:	credit
Period Type:	instant

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer, shared with fund providers (including the Group's equity method investees).

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Refers to withdrawal penalty.

No definition available.

Name:	duo_WithdrawalPenalty
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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-Name Accounting Standards Codification
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-SubTopic 30
-Section 45
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-Name Accounting Standards Codification
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Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.

No definition available.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Period Type:	instant

Amount of liabilities classified as other.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15)
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Data Type:	xbrli:monetaryItemType
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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
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Data Type:	na
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Name:	us-gaap_TypeOfArrangementAxis=duo_SelfCommitmentOrNonGroupCollaborativeAgreementsMember
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