DETAILS OF CERTAIN BALANCE SHEET ACCOUNTS - Accounts Receivable, net (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Mar. 31, 2016
Accounts receivable, net [Line Items]
Accounts receivable	$ 171,191	$ 163,834
Accounts receivable, net	133,155	128,219
Provision for returns [Member]
Accounts receivable, net [Line Items]
Accounts receivable, reserves	(8,722)	(7,314)
Provision for promotions, rebates and other [Member]
Accounts receivable, net [Line Items]
Accounts receivable, reserves	(28,664)	(27,737)
Provisions for doubtful accounts and sales allowances [Member]
Accounts receivable, net [Line Items]
Accounts receivable, reserves	$ (650)	$ (564)