REVENUE AND MAJOR CUSTOMERS (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($) Customer	Jun. 30, 2014 USD ($) Customer	Mar. 31, 2015 Customer
Revenue from External Customer [Line Items]
Net revenues	$ 206,358	$ 216,662
Number of major customers, ten percent or greater, net revenues | Customer	0	0
Number of major customers, ten percent or greater, net accounts receivable | Customer	0
US [Member]
Revenue from External Customer [Line Items]
Net revenues	$ 117,578	$ 124,467
Europe and Africa [Member]
Revenue from External Customer [Line Items]
Net revenues	50,107	51,262
Asia Pacific [Member]
Revenue from External Customer [Line Items]
Net revenues	26,515	26,969
Americas, excluding U.S. [Member]
Revenue from External Customer [Line Items]
Net revenues	12,158	13,964
Total international net revenues [Member]
Revenue from External Customer [Line Items]
Net revenues	88,780	92,195
Enterprise [Member]
Revenue from External Customer [Line Items]
Net revenues	151,757	152,354
Consumer [Member]
Revenue from External Customer [Line Items]
Net revenues	$ 54,601	$ 64,308
D&H Distributing [Member]
Revenue from External Customer [Line Items]
Number of major customers, ten percent or greater, net accounts receivable | Customer			1
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Revenue from External Customer [Line Items]
Concentration Risk, Percentage	10.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | D&H Distributing [Member]
Revenue from External Customer [Line Items]
Concentration Risk, Percentage			11.10%