Balance Sheet Accounts (Tables)

6 Months Ended

Dec. 31, 2012

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)

	December 31, 2012		June 30, 2012
Cash	$	30,656	$	18,455
Cash equivalents	$	59,110	$	36,141
Short-term investments	35,204		23,358
Marketable securities	71,208		75,561
Total available-for-sale	$	165,522	$	135,060
Total cash and available for sale securities	$	196,178	$	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
December 31, 2012
Money market funds	$	59,110	$	59,110	$	—	$	—
U.S. corporate debt securities	98,706		98,899		268		(75		)
U.S. government agency securities	7,508		7,513		5		—
	$	165,324	$	165,522	$	273	$	(75	)
Classified as:
Cash equivalents	$	59,110	$	59,110	$	—	$	—
Short-term investments	35,125		35,204		79		—
Marketable securities	71,089		71,208		194		(75		)
	$	165,324	$	165,522	$	273	$	(75	)
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 December 31, 2012, by contractual maturity, were as follows (in thousands):

	Amortized Cost		Fair Value
Due in 1 year or less	$	35,125	$	35,204
Due in 1-2 years	31,367		31,447
Due in 2-5 years	39,722		39,761
Total investments in available for sale debt securities	$	106,214	$	106,412

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
December 31, 2012
U.S. corporate debt securities	$	26,202	$	(75	)	$	—	$	—	$	26,202	$	(75	)
	$	26,202	$	(75	)	$	—	$	—	$	26,202	$	(75	)

Schedule of Intangible Assets

The following tables summarize the components of gross and net intangible asset balances (in thousands):

	Weighted Average Remaining Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
December 31, 2012
Patents	7.2 years	$	1,800	$	775	$	1,025
License Agreements	10 years	10,158		6,845		3,313
Other Intangibles	2.7 years	659		358		301
		$	12,617	$	7,978	$	4,639

	Weighted Average Remaining Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
June 30, 2012
Patents	7.4 years	$	1,800	$	669	$	1,131
License Agreements	9.3 years	10,158		6,231		3,927
Other Intangibles	0.3 years	324		276		48
		$	12,282	$	7,176	$	5,106

Schedule of Expected Amortization Expense

Amortization expense expected to be recorded for each of the next five years is as follows (in thousands):

For the fiscal year ending:
Remaining for fiscal 2013	$	680
2014	916
2015	549
2016	375
2017	302
Thereafter	1,817
Total	$	4,639

Schedule of Deferred Revenue, Net

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

	December 31, 2012			June 30, 2012
Deferred services	$	36,118		$	37,708
Deferred product:
Deferred revenue	2,231			2,236
Deferred cost of sales	(775		)	(616		)
Deferred product revenue, net	1,456			1,620
Balance at end of period	37,574			39,328
Less: current portion	29,441			31,769
Non-current deferred revenue, net	$	8,133		$	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						Six Months Ended
	December 31, 2012			January 1, 2012			December 31, 2012			January 1, 2012
Balance beginning of period	$	35,661		$	35,730		$	37,461		$	35,802
New support arrangements	14,776			15,960			27,313			30,560
Recognition of support revenue	(14,640		)	(14,274		)	(28,977		)	(28,946		)
Balance end of period	35,797			37,416			35,797			37,416
Less: current portion	27,664			29,853			27,664			29,853
Non-current deferred revenue	$	8,133		$	7,563		$	8,133		$	7,563

Schedule of Deferred Distributors Revenue

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

	December 31, 2012			June 30, 2012
Deferred distributors revenue	$	20,200		$	20,361
Deferred cost of sales to distributors	(4,796		)	(5,042		)
Total deferred distributors revenue, net of cost of sales to distributors	$	15,404		$	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 six months ended December 31, 2012 and January 1, 2012:

	Three Months Ended						Six Months Ended
	December 31, 2012			January 1, 2012			December 31, 2012			January 1, 2012
Balance beginning of period	$	2,971		$	2,702		$	2,871		$	2,640
New warranties issued	1,942			1,589			3,504			3,237
Warranty expenditures	(1,942		)	(1,640		)	(3,404		)	(3,226		)
Balance end of period	$	2,971		$	2,651		$	2,971		$	2,651

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 six months ended January 1, 2012 have been revised to correct previously disclosed amounts):

	Three Months Ended				Six Months Ended
	December 31, 2012		January 1, 2012		December 31, 2012		January 1, 2012
Westcon Group Inc.	14	%	22	%	15	%	19	%
Scansource, Inc.	12	%	*		12	%	13	%
Tech Data Corporation	12	%	*		11	%	*
Ericsson AB	10	%	12	%	10	%	11	%
* Less than 10% of revenue

The following table sets forth major customers accounting for 10% or more of our accounts receivable balance:

	December 31, 2012		June 30, 2012
Ericsson AB	16	%	21	%
Scansource Inc.	11	%	*
Westcon Group Inc.	*		16	%
* Less than 10% of accounts receivable