Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Total Verint Systems Inc. Stockholders' Equity	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive Loss	Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity
Net (loss) income	$ 22,228	$ 17,638	$ 0	$ 0	$ 0	$ 17,638	$ 0	$ 4,590
Other comprehensive (loss) income	(22,270)	(21,859)	0	0	0	0	(21,859)	(411)
Stock-based compensation - equity portion	58,028	58,028	0	58,028	0	0	0	0
Exercises of stock options	232	232	$ 0	232	0	0	0	0
Exercises of stock options (in shares)			6,000
Common stock issued for stock awards and stock bonuses	7,745	7,745	$ 2	7,743	0	0	0	0
Common stock issued for stock awards and stock bonuses (in shares)			1,355,000
Dividends to noncontrolling interest	(3,199)	0	$ 0	0	0	0	0	(3,199)
Tax effects from stock award plans	497	497	0	497	0	0	0	0
Balances at Jan. 31, 2015	1,004,903	997,856	$ 61	1,321,455	(10,251)	(219,074)	(94,335)	7,047
Balances (in shares) at Jan. 31, 2015			60,905,000
Balances at Jan. 31, 2016	1,068,164	1,060,137	$ 63	1,387,955	(10,251)	(201,436)	(116,194)	8,027
Balances (in shares) at Jan. 31, 2016			62,266,000
Increase (Decrease) in Stockholders' Equity
Net (loss) income	(26,246)	(29,380)	$ 0	0	0	(29,380)	0	3,134
Other comprehensive (loss) income	(38,942)	(38,662)	0	0	0	0	(38,662)	(280)
Stock-based compensation - equity portion	55,123	55,123	0	55,123	0	0	0	0
Exercises of stock options	7	7	$ 0	7	0	0	0	0
Exercises of stock options (in shares)			1,000
Common stock issued for stock awards and stock bonuses	6,953	6,953	$ 1	6,952	0	0	0	0
Common stock issued for stock awards and stock bonuses (in shares)			1,458,000
Treasury stock acquired	$ (46,896)	(46,896)	$ 0	0	46,896	0	0	0
Treasury stock acquired (in shares)	(1,306,000)		(1,306,000)
Dividends to noncontrolling interest	$ (2,421)	0	$ 0	0	0	0	0	(2,421)
Tax effects from stock award plans	(702)	(702)	0	(702)	0	0	0	0
Balances at Jan. 31, 2017	1,015,040	1,006,580	$ 64	1,449,335	(57,147)	(230,816)	(154,856)	8,460
Balances (in shares) at Jan. 31, 2017			62,419,000
Increase (Decrease) in Stockholders' Equity
Net (loss) income	(3,454)	(6,627)	$ 0	0	0	(6,627)	0	3,173
Other comprehensive (loss) income	51,916	51,396	0	0	0	0	51,396	520
Stock-based compensation - equity portion	57,414	57,414	0	57,414	0	0	0	0
Common stock issued for stock awards and stock bonuses	12,976	12,976	$ 1	12,975	0	0	0	0
Common stock issued for stock awards and stock bonuses (in shares)			1,424,000
Treasury stock acquired	(278)	(278)	$ 0	0	278	0	0	0
Treasury stock acquired (in shares)			(7,000)
Initial noncontrolling interest related to business combination	2,300	0	$ 0	0	0	0	0	2,300
Capital contributions by noncontrolling interests	595	0	0	0	0	0	0	595
Dividends to noncontrolling interest	(3,304)	0	0		0	0	0	(3,304)
Cumulative effect of adopting ASU No. 2016-16	(869)	(869)	0	0	0	(869)	0	0
Balances at Jan. 31, 2018	$ 1,132,336	$ 1,120,592	$ 65	$ 1,519,724	$ (57,425)	$ (238,312)	$ (103,460)	$ 11,744
Balances (in shares) at Jan. 31, 2018			63,836,000