Document and Entity Information - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2017	Mar. 15, 2017	Jul. 29, 2016
Document And Entity Information
Entity Registrant Name	VERINT SYSTEMS INC
Entity Central Index Key	0001166388
Current Fiscal Year End Date	--01-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Jan. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Public Float			$ 2,172,714
Entity Common Stock, Shares Outstanding		62,418,926