Business Combinations (Schedule Of Components And The Allocations Of The Purchase Prices) (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2012	Jan. 31, 2012	Aug. 04, 2011
Components of purchase price:
Fair value of contingent consideration	$ 23,316	$ 38,646
Verint Segment | Vovici Acquisition
Components of purchase price:
Cash and cash equivalents		55,708	66,100
Fair value of contingent consideration	4,300	9,900	9,900
Fair value of stock options		60
Bank debt, prepaid at closing		435
Other purchase price adjustments		0
Total purchase price		66,103
Allocation of Purchase Price:
Cash and cash equivalents		179
Accounts receivable		1,106
Other current assets		5,219
Other assets		913
Current and other liabilities		(2,931)
Deferred revenue		(2,264)
Bank debt		0
Deferred income taxes - long-term		(6,021)
Net tangible (liabilities) assets		(3,799)
Identifiable intangible assets:
Identifiable intangible assets		28,400
Goodwill		41,502
Verint Segment | Vovici Acquisition | Developed Technology
Identifiable intangible assets:
Identifiable intangible assets		11,300
Verint Segment | Vovici Acquisition | Customer Relationships
Identifiable intangible assets:
Identifiable intangible assets		15,400
Verint Segment | Vovici Acquisition | Trademarks And Trade Names
Identifiable intangible assets:
Identifiable intangible assets		1,700
Verint Segment | Vovici Acquisition | In-Process Research and Development
Identifiable intangible assets:
Identifiable intangible assets		0
Verint Segment | Vovici Acquisition | Other Identifiable Intangible Assets
Identifiable intangible assets:
Identifiable intangible assets		0
Verint Segment | Other Acquisitions
Components of purchase price:
Cash and cash equivalents		33,835
Fair value of contingent consideration	15,200	20,504
Fair value of stock options		0
Bank debt, prepaid at closing		0
Other purchase price adjustments		816
Total purchase price		55,155
Allocation of Purchase Price:
Cash and cash equivalents		4,614
Accounts receivable		842
Other current assets		11,036
Other assets		5,579
Current and other liabilities		(15,419)
Deferred revenue		(944)
Bank debt		(3,330)
Deferred income taxes - long-term		186
Net tangible (liabilities) assets		2,564
Identifiable intangible assets:
Identifiable intangible assets		22,054
Goodwill		30,537
Verint Segment | Other Acquisitions | Developed Technology
Identifiable intangible assets:
Identifiable intangible assets		9,743
Verint Segment | Other Acquisitions | Customer Relationships
Identifiable intangible assets:
Identifiable intangible assets		7,040
Verint Segment | Other Acquisitions | Trademarks And Trade Names
Identifiable intangible assets:
Identifiable intangible assets		1,350
Verint Segment | Other Acquisitions | In-Process Research and Development
Identifiable intangible assets:
Identifiable intangible assets		2,500
Verint Segment | Other Acquisitions | Other Identifiable Intangible Assets
Identifiable intangible assets:
Identifiable intangible assets		$ 1,421