Basis of Presentation (Details)	3 Months Ended
	Apr. 30, 2012	Jan. 31, 2012	Jan. 11, 2012
Minimum number of wireless and wireline network communication service provider customers	450	450
Minimum number of countries in which entity operates	125	125
Total numbers of largest wireless network operators	100	100
Proposed distribution to shareholders of Comverse's common shares (percent)			100.00%
Fiscal years with net losses and declines in cash flows and working capital	3 years
Sufficient cash available	12 months
Verint [Member]
Equity method investment, ownership percentage	41.60%
Voting power	52.50%
Subsidiaries percentage of equity interest in consolidated variable interest entity	50.00%
Starhome B V [Member]
Equity method investment, ownership percentage	66.50%