Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jul. 31, 2011	Jul. 31, 2010	Jul. 31, 2011	Jul. 31, 2010
Revenue:
Product revenue	$ 165,902	$ 184,576	$ 307,937	$ 348,531
Service revenue	220,465	225,666	427,927	418,599
Total revenue	386,367	410,242	735,864	767,130
Costs and expenses:
Product costs	67,087	74,257	121,698	140,637
Service costs	116,134	113,601	227,571	223,825
Selling, general and administrative	137,622	171,257	288,969	362,380
Research and development, net	51,499	63,307	105,938	130,204
Other operating expenses:
Litigation settlements		(150)		(150)
Restructuring charges	1,963	1,020	13,050	6,976
Total costs and expenses	374,305	423,292	757,226	863,872
Income (loss) from operations	12,062	(13,050)	(21,362)	(96,742)
Interest income	1,550	1,008	2,667	2,002
Interest expense	(8,005)	(6,053)	(17,133)	(12,221)
Loss on extinguishment of debt			(8,136)
Other income, net	12,519	3,938	12,397	5,615
Income (loss) before income tax provision	18,126	(14,157)	(31,567)	(101,346)
Income tax provision	(50,015)	(2,604)	(57,440)	(2,226)
Net loss from continuing operations	(31,889)	(16,761)	(89,007)	(103,572)
Loss from discontinued operations, net of tax		(1,413)		(3,053)
Net loss	(31,889)	(18,174)	(89,007)	(106,625)
Less: Net (income) loss attributable to noncontrolling interest	(7,808)	(5,999)	(9,885)	577
Net loss attributable to Comverse Technology, Inc.	(39,697)	(24,173)	(98,892)	(106,048)
Weighted average common shares outstanding:
Basic and Diluted	206,079,868	205,248,892	205,892,853	205,068,754
Basic and Diluted loss per share
Continuing operations	$ (0.19)	$ (0.12)	$ (0.48)	$ (0.51)
Discontinued operations		$ 0.00		$ (0.01)
Basic and Diluted loss per share	$ (0.19)	$ (0.12)	$ (0.48)	$ (0.52)
Net loss attributable to Comverse Technology, Inc.
Net loss from continuing operations	(39,697)	(23,173)	(98,892)	(103,824)
Loss from discontinued operations, net of tax		(1,000)		(2,224)
Net loss attributable to Comverse Technology, Inc.	$ (39,697)	$ (24,173)	$ (98,892)	$ (106,048)