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Note 16 - Commitments and Contingencies (Details Textual) - USD ($)	Jun. 16, 2023	Jan. 30, 2023	Jun. 27, 2022
Miller v. Pentagon Federal Credit Union, Verisk Analytics, Inc. and Lead Intelligence, Inc. [Member]
Loss Contingency, Aggregate Claims of Proposed Class	$ 5,000,000.0
Ahringer et al. v. LoanDepot, Inc. and Verisk Analytics [Member]
Loss Contingency, Aggregate Claims of Proposed Class		$ 5.0
Williams v. DDR Merida, LLC and Lead Intelligence, Inc. [Member]
Loss Contingency, Damages Per Violation			$ 5,000

X

- Definition

Aggregate claims of proposed class for loss contingency.

+ References

No definition available.

+ Details

Name:	vrsk_LossContingencyAggregateClaimsOfProposedClass
Namespace Prefix:	vrsk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of damages per violation accrued under loss contingency.

+ References

No definition available.

+ Details

Name:	vrsk_LossContingencyDamagesPerViolation
Namespace Prefix:	vrsk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	srt_LitigationCaseAxis=vrsk_MillerVPentagonFederalCreditUnionVeriskAnalyticsIncAndLeadIntelligenceIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_LitigationCaseAxis=vrsk_AhringerEtAlVLoandepotIncAndVeriskAnalyticsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_LitigationCaseAxis=vrsk_WilliamsVDdrMeridaLlcAndLeadIntelligenceIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: