DETAILS OF CERTAIN BALANCE SHEET ACCOUNTS - Accounts Receivable, net (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015
Accounts receivable, net [Line Items]
Accounts receivable	$ 149,317	$ 159,397
Accounts receivable, net	127,160	136,581
Provision for returns [Member]
Accounts receivable, net [Line Items]
Accounts receivable, reserves	(5,821)	(6,194)
Provision for promotions, rebates and other [Member]
Accounts receivable, net [Line Items]
Accounts receivable, reserves	(14,797)	(15,401)
Provisions for doubtful accounts and sales allowances [Member]
Accounts receivable, net [Line Items]
Accounts receivable, reserves	$ (1,539)	$ (1,221)