DEFERRED REVENUES (Details) - USD ($) $ in Thousands	Jul. 31, 2015	Jan. 31, 2015
Deferred Revenue Arrangement [Line Items]
Deferred revenues, current	$ 82,505	$ 102,721
Deferred revenues, non-current (in Other liabilities)	1,869	2,361
Total deferred revenues	84,374	105,082
Deferred Maintenance Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenues, current	66,529	86,381
Deferred Subscription Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenues, current	12,073	11,563
Deferred Services Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenues, current	2,581	2,813
Deferred License Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenues, current	1,266	1,890
Deferred Other Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenues, current	$ 56	$ 74