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Balance Sheet Accounts (Tables) | 9 Months Ended
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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 |  |  |  |  |  |  |  |

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