XML 89 R69.htm IDEA: XBRL DOCUMENT v3.23.1

Fair value measurement - Short-term investments (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Minimum
Fair Value Measurement
Maturity term of short term investments (in days or months)	7 days	7 days
Maximum
Fair Value Measurement
Maturity term of short term investments (in days or months)	3 months	3 months

X

- Definition

The period of maturity of short-term investments.

+ References

No definition available.

+ Details

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

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: