Certain Financial Statement Information (Tables)

9 Months Ended

Dec. 31, 2012

Certain Financial Statement Information [Abstract]

Schedule of Accounts receivable

Accounts receivable:

	December 31, 2012			March 31, 2012
	(In thousands)
Accounts receivable	$	18,006		$	23,765
Less: allowance for bad debts	(644		)	(1,099		)
	$	17,362		$	22,666

Schedule of Inventories

Inventories:

	December 31, 2012		March 31, 2012
	(In thousands)
Finished goods	$	9,479	$	17,883
Work in process	3,246		3,818
Raw materials	1,132		1,543
	$	13,857	$	23,244

Schedule of Other current assets

Other current assets:

	December 31, 2012		March 31, 2012
	(In thousands)
Prepaid expenses	$	13,470	$	20,353
Executive deferred compensation assets	1,375		1,344
Deposits	941		899
Proceeds receivable from sale of strategic investment	1,331		7,100
Other	2,180		1,409
	$	19,297	$	31,105

Schedule of Property and equipment

Property and equipment:

	Useful Life	December 31, 2012			March 31, 2012
	(In years)	(In thousands)
Machinery and equipment	5-7	$	37,357		$	36,600
Leasehold improvements	1-15	16,634			14,228
Computers, office furniture and equipment	3-7	43,292			43,929
Buildings	31.5	2,756			2,756
Land	—	9,800			9,800
		109,839			107,313
Less: accumulated depreciation and amortization		(73,668		)	(69,213		)
		$	36,171		$	38,100

Schedule of Goodwill

Goodwill is as follows:

	(In thousands)
Goodwill as of December 31, 2012 and March 31, 2012	$	13,183

Schedule of Purchased intangible assets

Purchase-related intangibles were as follows:

	December 31, 2012								March 31, 2012
	Gross		Accumulated Amortization and Impairments			Net		Weighted average remaining useful life	Gross		Accumulated Amortization and Impairments			Net		Weighted average remaining useful life
	(In thousands)							(In years)	(In thousands)							(In years)
Developed technology/in-process research and development	$	441,300	$	(431,092	)	$	10,208	3.8	$	441,300	$	(429,054	)	$	12,246	4.6
Customer relationships	12,830		(10,244		)	2,586		2.6	12,830		(8,881		)	3,949		2.9
Patents/core technology rights/trade name	63,206		(62,992		)	214		0.8	63,206		(62,767		)	439		1.5
	$	517,336	$	(504,328	)	$	13,008		$	517,336	$	(500,702	)	$	16,634

Schedule of Estimated future amortization expense of purchased intangible assets

As of December 31, 2012, the estimated future amortization expense of purchased intangible assets to be charged to cost of sales and operating expenses was as follows (in thousands):

	Cost of Sales		Operating Expenses		Total
Fiscal Years Ending March 31,
2013 (remaining)	$	680	$	336	$	1,016
2014	2,717		1,189		3,906
2015	2,717		904		3,621
2016	2,717		369		3,086
2017 and thereafter	1,379		—		1,379
Total	$	10,210	$	2,798	$	13,008

Schedule of Other assets

Other assets:

	December 31, 2012		March 31, 2012
	(In thousands)
Non-current portion of prepaid expenses	$	8,754	$	4,193
Strategic investments	5,250		4,750
Other	—		1,331
	$	14,004	$	10,274

Schedule of Other accrued liabilities

Other accrued liabilities:

	December 31, 2012		March 31, 2012
	(In thousands)
Customer deposits*	$	51	$	415
Employee related liabilities	3,868		2,051
Executive deferred compensation	1,375		1,344
Income taxes	1,626		1,401
Professional fees	891		961
Contingent consideration	—		618
Other	2,157		2,262
	$	9,968	$	9,052

Schedule of Cash, cash equivalents and available-for-sale investments by type of instruments

The following is a summary of cash, cash equivalents and available-for-sale investments by type of instruments (in thousands):

	December 31, 2012								March 31, 2012
	Amortized Cost		Gross Unrealized				Estimated Fair Value		Amortized Cost		Gross Unrealized				Estimated Fair Value
			Gains		Losses								Losses
Cash	$	8,683	$	—	$	—	$	8,683	$	15,057	$	—	$	—	$	15,057
Cash equivalents	7,000		—		—		7,000		13,008		—		—		13,008
U.S. Treasury securities and agency bonds	12,141		15		2		12,154		16,771		11		19		16,763
Corporate bonds	18,365		78		8		18,435		23,361		56		10		23,407
Mortgage-backed and asset-backed securities*	4,076		349		9		4,416		7,308		364		61		7,611
Closed-end bond funds	23,057		4,959		1,225		26,791		26,401		5,161		1,649		29,913
Preferred stock	4,878		1,887		—		6,765		6,209		1,878		—		8,087
	$	78,200	$	7,288	$	1,244	$	84,244	$	108,115	$	7,470	$	1,739	$	113,846
Reported as:
Cash and cash equivalents							$	15,683							$	28,065
Short-term investments available-for-sale							68,561								85,781
							$	84,244							$	113,846

Schedule of Cash, cash equivalents and available-for-sale investments by type of instruments measured at fair value on recurring basis

The following is a summary of cash, cash equivalents and available-for-sale investments by type of instruments measured at fair value on a recurring basis (in thousands):

	December 31, 2012								March 31, 2012
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash	$	8,683	$	—	$	—	$	8,683	$	15,057	$	—	$	—	$	15,057
Cash equivalents	7,000		—		—		7,000		10,510		2,498		—		13,008
U.S. Treasury securities and agency bonds	12,154		—		—		12,154		16,763		—		—		16,763
Corporate bonds	—		18,435		—		18,435		—		23,407		—		23,407
Mortgage-backed and asset-backed securities	—		4,416		—		4,416		—		7,611		—		7,611
Closed-end bond funds	26,791		—		—		26,791		29,913		—		—		29,913
Preferred stock	—		6,765		—		6,765		—		8,087		—		8,087
	$	54,628	$	29,616	$	—	$	84,244	$	72,243	$	41,603	$	—	$	113,846

Schedule of Cost and estimated fair values of available-for-sale securities with stated maturities by contractual maturity

The following is a summary of the cost and estimated fair values of available-for-sale securities with stated maturities, which include U.S. Treasury securities and agency bonds, corporate bonds and mortgage-backed and asset-backed securities, by contractual maturity (in thousands):

	December 31, 2012				March 31, 2012
	Cost		Fair Value		Cost		Fair Value
Less than 1 year	$	13,979	$	14,152	$	16,683	$	16,722
Mature in 1 – 2 years	18,972		19,036		26,869		27,026
Mature in 3 – 5 years	415		459		2,421		2,496
Mature after 5 years	1,216		1,358		1,467		1,537
	$	34,582	$	35,005	$	47,440	$	47,781

Schedule of Gross unrealized losses

The following is a summary of gross unrealized losses (in thousands):

	Less Than 12 Months of Unrealized Losses					12 Months or More of Unrealized Losses					Total
As of December 31, 2012	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
U.S. Treasury securities and agency bonds	$	2,131	$	(2	)	$	—	$	—		$	2,131	$	(2	)
Corporate bonds	2,950		(3		)	245		(5		)	3,195		(8		)
Mortgage-backed and asset-backed securities	580		(5		)	16		(4		)	596		(9		)
Closed-end bond funds	43		(2		)	6,950		(1,223		)	6,993		(1,225		)
	$	5,704	$	(12	)	$	7,211	$	(1,232	)	$	12,915	$	(1,244	)

	Less Than 12 Months of Unrealized Losses					12 Months or More of Unrealized Losses					Total
As of March 31, 2012	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
U.S. Treasury securities and agency bonds	$	8,938	$	(19	)	$	—	$	—		$	8,938	$	(19	)
Corporate bonds	5,463		(10		)	—		—			5,463		(10		)
Mortgage-backed and asset-backed securities	894		(20		)	353		(41		)	1,247		(61		)
Closed-end bond funds	—		—			6,628		(1,649		)	6,628		(1,649		)
	$	15,295	$	(49	)	$	6,981	$	(1,690	)	$	22,276	$	(1,739	)

Schedule of Warranty reserve activity

The following table summarizes warranty reserve activity (in thousands):

	Three Months Ended						Nine Months Ended
	December 31,						December 31,
	2012			2011			2012			2011
Beginning balance	$	370		$	244		$	454		$	176
Charged to costs of revenues	96			210			311			515
Charges incurred	(108		)	(8		)	(407		)	(245		)
Ending balance	$	358		$	446		$	358		$	446

Schedule of Interest income, net

Interest income (expense), net (in thousands):

	Three Months Ended				Nine Months Ended
	December 31,				December 31,
	2012		2011		2012		2011
Interest income	$	685	$	807	$	1,915	$	2,896
Net realized gain on short-term investments	207		21		1,401		682
	$	892	$	828	$	3,316	$	3,578

Schedule of Other income (expense), net

Other income (expense), net (in thousands):

	Three Months Ended				Nine Months Ended
	December 31,				December 31,
	2012		2011		2012		2011
Net gain (loss) on disposals of property, equipment and other assets	$	1,299	$	—	$	1,289	$	(10	)
Other, net	67		86		250		219
	$	1,366	$	86	$	1,539	$	209

Schedule of Reconciliation of shares used to calculate basic and diluted net loss per share

The reconciliation of shares used to calculate basic and diluted net loss per share consists of the following (in thousands, except per share data):

	Three Months Ended						Nine Months Ended
	December 31,						December 31,
	2012			2011			2012			2011
Net loss	$	(71,562	)	$	(7,077	)	$	(116,509	)	$	(15,106	)
Shares used in net loss per share computation:
Weighted average common shares outstanding, basic	66,113			60,990			64,489			62,465
Net effect of dilutive common share equivalents	—			—			—			—
Weighted average common shares outstanding, diluted	66,113			60,990			64,489			62,465
Basic and diluted net loss per share	$	(1.08	)	$	(0.12	)	$	(1.81	)	$	(0.24	)