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

Number of shares authorized for issuance under share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

This is the reduction in award capacity under the 2019 Long-Term Stock Incentive Plan resulting from an award other than a stock option of a stock-settled SAR.

No definition available.

Name:	vrnt_ReductionOfAvailablePlanCapacityForEachOtherAward
Namespace Prefix:	vrnt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Reduction Of Available Plan Capacity For Each Stock Option Or Stock-Settled Stock Appreciation Right

No definition available.

Name:	vrnt_ReductionOfAvailablePlanCapacityForEachStockOptionOrStockSettledStockAppreciationRight
Namespace Prefix:	vrnt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share-Based Compensation Arrangement By Share-Based Payment Award, Unvested Awards Conversion Factor

No definition available.