Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Apr. 30, 2012	Apr. 30, 2011
Revenue:
Product revenue	$ 144,502	$ 142,035
Service revenue	199,165	207,462
Total revenue	343,667	349,497
Costs and expenses:
Product costs	61,601	54,611
Service costs	103,847	111,437
Research and development, net	49,655	54,439
Selling, general and administrative	145,312	151,347
Other operating expenses:
Restructuring charges	680	11,087
Total costs and expenses	361,095	382,921
Loss from operations	(17,428)	(33,424)
Interest income	366	1,117
Interest expense	(7,920)	(9,128)
Loss on extinguishment of debt	0	(8,136)
Other expense, net	(471)	(122)
Loss before income tax provision	(25,453)	(49,693)
Income tax provision	(20,151)	(7,425)
Net loss	(45,604)	(57,118)
Less: Net income attributable to noncontrolling interest	(7,606)	(2,077)
Net loss attributable to Comverse Technology, Inc.	$ (53,210)	$ (59,195)
Weighted average common shares outstanding:
Basic and Diluted	218,855,251	205,699,533
Loss per share attributable to Comverse Technology, Inc.’s shareholders:
Basic and Diluted	$ (0.24)	$ (0.29)