Name:	beke_AmountOfNonDistributableStatutoryReservesForConsolidatedAndUnconsolidatedSubsidiaries
Namespace Prefix:	beke_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of onshore capital returned to preferred shareholder.

No definition available.

Name:	beke_AmountOfOnshoreCapitalReturned
Namespace Prefix:	beke_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of income from Government Grants recognized by the company, pursuant to COVID 19 support program.

No definition available.

Name:	beke_IncomeFromGovernmentGrantsPursuantToCovid19SupportProgram
Namespace Prefix:	beke_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The percentage of equity interest pledged as security.

No definition available.

Name:	beke_PercentageOfEquityInvestmentsPledge
Namespace Prefix:	beke_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(e)(3)(ii))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Name:	us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770

Name:	us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.