Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive Loss	Total Verint Systems Inc. Stockholders' Equity	Noncontrolling Interests
Balances at Jan. 31, 2019	$ 1,260,804	$ 67	$ 1,586,266	$ (57,598)	$ (134,274)	$ (145,225)	$ 1,249,236	$ 11,568
Balances (in shares) at Jan. 31, 2019		65,333,000
Increase (Decrease) in Stockholders' Equity
Net income (loss)	3,761	$ 0	0	0	1,576	0	1,576	2,185
Other comprehensive loss	(4,404)	0	0	0	0	(4,298)	(4,298)	(106)
Stock-based compensation - equity-classified awards	14,890	0	14,890	0	0	0	14,890	0
Common stock issued, or to be issued, for stock awards and stock bonuses	0	$ 0	0	0	0	0	0	0
Common stock issued, or to be issued, for stock awards and stock bonuses (in shares)		448,000
Treasury stock acquired	$ (474)	$ 0	0	474	0	0	(474)	0
Treasury stock acquired (in shares)	(8,000)	(8,000)
Balances at Apr. 30, 2019	$ 1,274,577	$ 67	1,601,156	(58,072)	(132,698)	(149,523)	1,260,930	13,647
Balances (in shares) at Apr. 30, 2019		65,773,000
Balances at Jan. 31, 2019	1,260,804	$ 67	1,586,266	(57,598)	(134,274)	(145,225)	1,249,236	11,568
Balances (in shares) at Jan. 31, 2019		65,333,000
Balances at Jan. 31, 2020	1,242,437	$ 68	1,660,889	(174,134)	(105,590)	(151,865)	1,229,368	13,069
Balances (in shares) at Jan. 31, 2020		64,738,000
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(3,975)	$ 0	0	0	(6,014)	0	(6,014)	2,039
Other comprehensive loss	(27,268)	0	0	0	0	(26,909)	(26,909)	(359)
Stock-based compensation - equity-classified awards	15,029	0	15,029	0	0	0	15,029	0
Common stock issued, or to be issued, for stock awards and stock bonuses	1,846	$ 1	1,845	0	0	0	1,846	0
Common stock issued, or to be issued, for stock awards and stock bonuses (in shares)		399,000
Exercises of stock options	12	$ 0	12	0	0	0	12	0
Exercises of stock options (in shares)		2,000
Treasury stock acquired	$ (33,990)	$ 0	0	33,990	0	0	(33,990)	0
Treasury stock acquired (in shares)	(613,000)	(613,000)
Distribution to noncontrolling interest	$ (245)	$ 0	0	0	0	0	0	(245)
Balances at Apr. 30, 2020	1,192,906	$ 69	1,677,775	(208,124)	(112,544)	(178,774)	1,178,402	14,504
Balances (in shares) at Apr. 30, 2020		64,526,000
Increase (Decrease) in Stockholders' Equity
Cumulative effect of new accounting principle in period of adoption | Accounting Standards Update 2016-13	$ (940)	$ 0	$ 0	$ 0	$ (940)	$ 0	$ (940)	$ 0