DETAILS OF CERTAIN BALANCE SHEET ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Mar. 31, 2013
Accounts receivable, net [Line Items]
Accounts receivable	$ 159,317				$ 151,250
Accounts receivable, net	133,379				128,209
Inventory, net [Abstract]
Raw materials	34,258				28,743
Work in process	432				82
Finished goods	31,879				38,610
Inventory, net	66,569				67,435
Accrued Liabilities [Abstract]
Employee compensation and benefits	31,779				29,796
Warranty obligation	7,963				13,410
Accrued advertising, sales, and marketing	4,847				3,735
Accrued other	22,026				19,478
Accrued liabilities	66,615				66,419
Changes in the Warranty Obligation [Roll Forward]
Warranty obligation at beginning of period	13,410		13,346
Correction of immaterial prior period error (2)	(5,042)	[1]	0	[1]
Warranty provision relating to products shipped	6,851		11,856
Deductions for warranty claims processed	(7,256)		(12,147)
Warranty obligation at end of period	7,963		13,055
Provisions for returns [Member]
Accounts receivable, net [Line Items]
Accounts Receivable Reserves	(8,912)				(8,957)
Provisions for promotions, rebates, and other [Member]
Accounts receivable, net [Line Items]
Accounts Receivable Reserves	(16,814)				(13,675)
Provisions for doubtful accounts and sales allowances [Member]
Accounts receivable, net [Line Items]
Accounts Receivable Reserves	$ (212)				$ (409)

[1] Refer to Note 1, Basis of Presentation, for details about the prior period error corrected in the quarter ended December 31, 2013.