No definition available.

Name:	base_CashFlowLesseeAbstract
Namespace Prefix:	base_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Operating Lease, Tenant Incentive Improvement Allowance Reimbursement

No definition available.

Name:	base_OperatingLeaseTenantIncentiveImprovementAllowanceReimbursement
Namespace Prefix:	base_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Right-Of-Use Asset Obtained In Exchange For Lease Liability

No definition available.

Name:	base_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract
Namespace Prefix:	base_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

Name:	us-gaap_OperatingLeasePayments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

Couchbase, Inc. 10-Q