DETAILS OF CERTAIN BALANCE SHEET ACCOUNTS (Tables)

12 Months Ended

Mar. 31, 2013

Balance Sheet Related Disclosures [Abstract]

Accounts receivable, net

Accounts receivable, net:

	March 31,
(in thousands)	2013			2012
Accounts receivable	$	151,250		$	133,233
Provisions for returns	(8,957		)	(7,613		)
Provisions for promotions and rebates	(13,675		)	(12,756		)
Provisions for doubtful accounts and sales allowances	(409		)	(1,093		)
Accounts receivable, net	$	128,209		$	111,771

Inventory, net

Inventory, net:

	March 31,
(in thousands)	2013		2012
Raw materials	$	28,743	$	14,062
Work in process	82		2,740
Finished goods	38,610		36,911
Inventory, net	$	67,435	$	53,713

Property, Plant and Equipment

Property, plant, and equipment, net:

	March 31,
(in thousands)	2013			2012
Land	$	13,961		$	6,531
Buildings and improvements (useful life: 7-30 years)	72,263			67,417
Machinery and equipment (useful life: 2-10 years)	88,538			90,643
Software (useful life: 5-6 years)	30,538			28,951
Construction in progress	16,101			2,323
	221,401			195,865
Accumulated depreciation and amortization	(122,290		)	(119,706		)
Property, plant and equipment, net	$	99,111		$	76,159

Accrued Liabilities

Accrued liabilities:

	March 31,
(in thousands)	2013		2012
Employee compensation and benefits	$	29,796	$	24,458
Warranty obligation	13,410		13,346
Accrued advertising and sales and marketing	3,735		1,317
Income taxes payable	3,376		222
Restructuring and other related charges (1)	1,165		—
Accrued other	14,937		12,724
Accrued liabilities	$	66,419	$	52,067

Changes in the warranty obligation accrual

Changes in the warranty obligation, which are included as a component of accrued liabilities in the consolidated balance sheets, are as follows:

	Year ended March 31,
(in thousands)	2013			2012
Warranty obligation at beginning of year	$	13,346		$	11,016
Warranty provision relating to products shipped during the year	16,287			17,061
Deductions for warranty claims processed	(16,223		)	(14,731		)
Warranty obligation at end of year	$	13,410		$	13,346