Balance Sheet Accounts (Tables)

9 Months Ended

Mar. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Cash, Cash Equivalents, Shot-Term Investments and Marketable Securities

Cash, Cash Equivalents, Short-Term Investments and Marketable Securities

Summary of Cash and Available-for-Sale Securities (in thousands)

	March 31, 2013		June 30, 2012
Cash	$	23,413	$	18,455
Cash equivalents	54,179		36,141
Short-term investments	42,336		23,358
Marketable securities	69,171		75,561
Total available-for-sale	$	165,686	$	135,060
Total cash and available for sale securities	$	189,099	$	153,515

Available-for-sale Securities

Available-for-Sale Securities

The following is a summary of available-for-sale securities (in thousands): 

	Amortized Cost		Fair Value		Unrealized Holding Gains		Unrealized Holding Losses
March 31, 2013
Money market funds	$	54,179	$	54,179	$	—	$	—
U.S. corporate debt securities	105,853		105,994		245		(104		)
U.S. government agency securities	5,512		5,513		1		—
	$	165,544	$	165,686	$	246	$	(104	)
Classified as:
Cash equivalents	$	54,179	$	54,179	$	—	$	—
Short-term investments	42,255		42,336		81		—
Marketable securities	69,110		69,171		165		(104		)
	$	165,544	$	165,686	$	246	$	(104	)
June 30, 2012
Money market funds	$	36,141	$	36,141	$	—	$	—
U.S. corporate debt securities	84,882		84,949		148		(81		)
U.S. government agency securities	11,241		11,234		3		(10		)
U.S. municipal bonds	2,738		2,736		—		(2		)
	$	135,002	$	135,060	$	151	$	(93	)
Classified as:
Cash equivalents	$	36,141	$	36,141	$	—	$	—
Short-term investments	23,311		23,358		48		(1		)
Marketable securities	75,550		75,561		103		(92		)
	$	135,002	$	135,060	$	151	$	(93	)

The amortized cost and estimated fair value of available-for-sale investments in debt securities at March 31, 2013, by contractual maturity, were as follows (in thousands):

	Amortized Cost		Fair Value
Due in 1 year or less	$	42,255	$	42,336
Due in 1-2 years	39,499		39,652
Due in 2-5 years	29,611		29,519
Total investments in available for sale debt securities	$	111,365	$	111,507

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value

The following table presents the Company’s investments’ gross unrealized losses and fair values, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position.

	Less than 12 months					12 months or more				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
March 31, 2013
U.S. corporate debt securities	$	32,942	$	(104	)	$	—	$	—	$	32,942	$	(104	)
	$	32,942	$	(104	)	$	—	$	—	$	32,942	$	(104	)

Schedule of Deferred Revenue, Net

The following table summarizes deferred revenue, net at March 31, 2013 and June 30, 2012, respectively (in thousands):

	March 31, 2013			June 30, 2012
Deferred services	$	37,397		$	37,708
Deferred product:
Deferred revenue	3,287			2,236
Deferred cost of sales	(277		)	(616		)
Deferred product revenue, net	3,010			1,620
Balance at end of period	40,407			39,328
Less: current portion	32,400			31,769
Non-current deferred revenue, net	$	8,007		$	7,559

Change in Deferred Support Revenue

The change in the Company’s deferred support revenue balance in relation to these arrangements was as follows (in thousands):

	Three Months Ended						Nine Months Ended
	March 31, 2013			April 1, 2012			March 31, 2013			April 1, 2012
Balance beginning of period	$	35,797		$	37,416		$	37,461		$	35,802
New support arrangements	14,431			15,115			41,745			45,675
Recognition of support revenue	(13,420		)	(14,364		)	(42,398		)	(43,310		)
Balance end of period	36,808			38,167			36,808			38,167
Less: current portion	28,801			30,538			28,801			30,538
Non-current deferred revenue	$	8,007		$	7,629		$	8,007		$	7,629

Schedule of Deferred Distributors Revenue

The following table summarizes deferred distributors revenue, net of cost of sales to distributors at March 31, 2013 and June 30, 2012, respectively (in thousands):

	March 31, 2013			June 30, 2012
Deferred distributors revenue	$	17,562		$	20,361
Deferred cost of sales to distributors	(4,030		)	(5,042		)
Total deferred distributors revenue, net of cost of sales to distributors	$	13,532		$	15,319

Schedule of Product Warranty Liability

The following table summarizes the activity related to the Company’s product warranty liability during the three and nine months ended March 31, 2013 and April 1, 2012:

	Three Months Ended						Nine Months Ended
	March 31, 2013			April 1, 2012			March 31, 2013			April 1, 2012
Balance beginning of period	$	2,971		$	2,651		$	2,871		$	2,640
New warranties issued	1,257			1,556			4,761			4,793
Warranty expenditures	(1,332		)	(1,365		)	(4,736		)	(4,591		)
Balance end of period	$	2,896		$	2,842		$	2,896		$	2,842

Schedules of Concentration of Risk, by Risk Factor

The following table sets forth major customers accounting for 10% or more of our net revenue (amounts for the three and nine months ended April 1, 2012 have been revised to correct previously disclosed amounts):

	Three Months Ended				Nine Months Ended
	March 31, 2013		April 1, 2012		March 31, 2013		April 1, 2012
Westcon Group Inc.	19	%	20	%	10	%	19	%
Tech Data	11	%	*		*		*
Scansource, Inc.	10	%	12	%	*		13	%
Ericsson AB	*		11	%	*		11	%
* Less than 10% of revenue