Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2015
Net (loss) income	$ (26,246)	$ 22,228	$ 36,402
Other comprehensive loss, net of reclassification adjustments:
Foreign currency translation adjustments	(42,130)	(28,180)	(45,600)
Net unrealized gains (losses) on available-for-sale securities	110	(211)	92
(Provision) benefit for income taxes on net unrealized gains (losses) on derivative financial instruments and interest rate swap designated as hedges	(693)	(798)	1,070
Other comprehensive loss	(38,942)	(22,270)	(54,985)
Comprehensive loss	(65,188)	(42)	(18,583)
Comprehensive income attributable to noncontrolling interest	2,854	4,179	5,096
Comprehensive loss attributable to Verint Systems Inc.	(68,042)	(4,221)	(23,679)
Foreign currency forward contracts
Other comprehensive loss, net of reclassification adjustments:
Net unrealized gains (losses) on derivative financial instruments designated as hedges	2,750	6,919	(10,547)
Interest Rate Swap
Other comprehensive loss, net of reclassification adjustments:
Net unrealized gains (losses) on derivative financial instruments designated as hedges	$ 1,021	$ 0	$ 0