Consolidated Balance Sheets (USD $) In Thousands	12 Months Ended
	Jan. 31, 2011	Jan. 31, 2010
ASSETS
Cash and cash equivalents	$ 581,390	$ 561,682
Restricted cash and bank time deposits	73,117	69,984
Auction rate securities	72,441	35,846
Accounts receivable, net of allowance of $13,237 and $16,877, respectively	319,628	310,221
Inventories, net	66,612	81,004
Deferred cost of revenue	51,470	59,412
Deferred income taxes	39,644	49,554
Prepaid expenses and other current assets	91,760	132,768
Receivables from affiliates		269
Current assets of discontinued operations		97,101
Total current assets	1,296,062	1,397,841
Property and equipment, net	66,843	99,541
Goodwill	967,224	953,397
Intangible assets, net	196,460	231,751
Deferred cost of revenue	158,703	194,300
Deferred income taxes	20,766	16,497
Auction rate securities		78,804
Other assets	107,864	119,420
Noncurrent assets of discontinued operations		9,660
Total assets	2,813,922	3,101,211
LIABILITIES AND EQUITY
Accounts payable and accrued expenses	401,940	450,680
Convertible debt obligations	2,195
Deferred revenue	559,873	632,674
Deferred income taxes	13,661	11,770
Bank loans	6,000	22,678
Litigation settlement	146,150	61,100
Income taxes payable	11,486	10,061
Other current liabilities	50,280	48,624
Current liabilities of discontinued operations		9,542
Total current liabilities	1,191,585	1,247,129
Convertible debt obligations		2,195
Bank loans	583,234	598,234
Deferred revenue	270,934	355,226
Deferred income taxes	52,953	32,156
Other long-term liabilities	229,329	351,192
Noncurrent liabilities of discontinued operations		5,357
Total liabilities	2,328,035	2,591,489
Commitments and contingencies
Comverse Technology, Inc. shareholders' equity:
Common stock, $0.10 par value-authorized, 600,000,000 shares; issued 204,937,882 and 204,228,369 shares, respectively; outstanding, 204,533,916 and 204,073,385 shares, respectively	20,494	20,422
Treasury stock, at cost, 403,966 and 154,984 shares, respectively	(3,484)	(1,578)
Additional paid-in capital	2,088,717	1,959,701
Accumulated deficit	(1,707,638)	(1,575,316)
Accumulated other comprehensive income	14,919	19,257
Total Comverse Technology, Inc. shareholders' equity	413,008	422,486
Noncontrolling interest	72,879	87,236
Total equity	485,887	509,722
Total liabilities and equity	$ 2,813,922	$ 3,101,211