DETAILS OF CERTAIN BALANCE SHEET ACCOUNTS (Tables)

6 Months Ended

Sep. 30, 2012

Balance Sheet Related Disclosures [Abstract]

Accounts receivable, net [Table Text Block]

Accounts receivable, net:

	September 30,			March 31,
(in thousands)	2012			2012
Accounts receivable	$	128,961		$	133,233
Provisions for returns	(7,681		)	(7,613		)
Provisions for promotions, rebates and other	(12,790		)	(12,756		)
Provisions for doubtful accounts and sales allowances	(420		)	(1,093		)
Accounts receivable, net	$	108,070		$	111,771

Inventory, net [Table Text Block]

Inventory, net:

	September 30,		March 31,
(in thousands)	2012		2012
Raw materials	$	28,438	$	21,246
Work in process	551		367
Finished goods	32,650		32,100
Inventory, net	$	61,639	$	53,713

Property, Plant and Equipment [Table Text Block]

Property, plant and equipment, net:

	September 30,			March 31,
(in thousands)	2012			2012
Land	$	13,961		$	6,531
Buildings and improvements (useful life: 7-30 years)	71,746			67,417
Machinery and equipment (useful life: 2-10 years)	84,617			90,643
Software (useful life: 5-6 years)	29,116			28,951
Construction in progress	4,968			2,323
	204,408			195,865
Accumulated depreciation and amortization	(114,642		)	(119,706		)
Property, plant and equipment, net	$	89,766		$	76,159

Accrued Liabilities [Table Text Block]

Accrued Liabilities:

	September 30,		March 31,
(in thousands)	2012		2012
Employee compensation and benefits	$	24,044	$	24,458
Warranty obligation	12,722		13,346
Accrued advertising and sales and marketing	2,335		1,152
Accrued other	14,348		13,111
Accrued liabilities	$	53,449	$	52,067

Changes in the warranty obligation [Table Text Block]

Changes in the warranty obligation during the six months ended September 30, 2012, which are included as a component of Accrued liabilities in the Condensed consolidated balance sheets, are as follows:

	Six Months Ended
(in thousands)	September 30, 2012
Warranty obligation at March 31, 2012	$	13,346
Warranty provision relating to products shipped	7,440
Deductions for warranty claims processed	(8,064		)
Warranty obligation at September 30, 2012	$	12,722