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Balance Sheet Accounts (Tables) | 3 Months Ended
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Sep. 30, 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)
| September 30, 2013 |  | June 30, 2013
Cash | $ | 34,854 |  |  | $ | 41,518 |
Cash equivalents | $ | 68,154 |  |  | $ | 54,285 |
Short-term investments | 96,427 |  |  | 43,034 |
Marketable securities | — |  |  | 66,776 |
Total available-for-sale | $ | 164,581 |  |  | $ | 164,095 |
Total cash and available for sale securities | $ | 199,435 |  |  | $ | 205,613 |
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
September 30, 2013 |  |  |  |  |  |  |
Money market funds | $ | 68,154 |  |  | $ | 68,154 |  |  | $ | — |  |  | $ | — |
U.S. corporate debt securities | 96,262 |  |  | 96,427 |  |  | 165 |  |  | — |
| $ | 164,416 |  |  | $ | 164,581 |  |  | $ | 165 |  |  | $ | — |
Classified as: |  |  |  |  |  |  |
Cash equivalents | $ | 68,154 |  |  | $ | 68,154 |  |  | $ | — |  |  | $ | — |
Short-term investments | 96,262 |  |  | 96,427 |  |  | 165 |  |  | — |
| $ | 164,416 |  |  | $ | 164,581 |  |  | $ | 165 |  |  | $ | — |
June 30, 2013 |  |  |  |  |  |  |
Money market funds | $ | 54,285 |  |  | $ | 54,285 |  |  | $ | — |  |  | $ | — |
U.S. corporate debt securities | 110,078 |  |  | 109,810 |  |  | 126 |  |  | (394 | )
| $ | 164,363 |  |  | $ | 164,095 |  |  | $ | 126 |  |  | $ | (394 | )
Classified as: |  |  |  |  |  |  |
Cash equivalents | $ | 54,285 |  |  | $ | 54,285 |  |  | $ | — |  |  | $ | — |
Short-term investments | 42,994 |  |  | 43,034 |  |  | 44 |  |  | (4 | )
Marketable securities | 67,084 |  |  | 66,776 |  |  | 82 |  |  | (390 | )
| $ | 164,363 |  |  | $ | 164,095 |  |  | $ | 126 |  |  | $ | (394 | )
The amortized cost and estimated fair value of available-for-sale investments in debt securities at September 30, 2013, by contractual maturity, were as follows (in thousands):
| Amortized Cost |  | Fair Value
Due in 1 year or less | $ | 164,416 |  |  | $ | 164,581 |
Total investments in available for sale debt securities | $ | 164,416 |  |  | $ | 164,581 |
Schedule of Deferred Revenue, Net | Deferred revenue, net represents amounts for (i) deferred services revenue (support arrangements, professional services and training), and (ii) deferred product revenue net of the related cost of revenue when the revenue recognition criteria have not been met. The following table summarizes deferred revenue, net at September 30, 2013 and June 30, 2013, respectively (in thousands):
| September 30, 2013 |  | June 30, 2013
Deferred services | $ | 37,091 |  |  | $ | 38,003 |
Deferred product and other revenue | 3,145 |  |  | 3,451 |
Total deferred revenue | 40,236 |  |  | 41,454 |
Less: current portion | 32,080 |  |  | 33,184 |
Non-current deferred revenue, net | $ | 8,156 |  |  | $ | 8,270 |
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
| September 30, 2013 |  | September 30, 2012
Balance beginning of period | $ | 38,003 |  |  | $ | 37,461 |
New support arrangements | 13,343 |  |  | 12,537 |
Recognition of support revenue | (14,255 | ) |  | (14,337 | )
Balance end of period | 37,091 |  |  | 35,661 |
Less: current portion | 28,935 |  |  | 28,377 |
Non-current deferred revenue | $ | 8,156 |  |  | $ | 7,284 |
Schedule of Deferred Distributors Revenue | The following table summarizes deferred distributors revenue, net of cost of sales to distributors at September 30, 2013 and June 30, 2013, respectively (in thousands):
| September 30, 2013 |  | June 30, 2013
Deferred distributors revenue | $ | 23,961 |  |  | $ | 22,411 |
Deferred cost of sales to distributors | (5,361 | ) |  | (5,023 | )
Deferred distributors revenue, net of cost of sales to distributors | $ | 18,600 |  |  | $ | 17,388 |
Schedule of Product Warranty Liability | The following table summarizes the activity related to the Company’s product warranty liability during the three months ended September 30, 2013 and 2012:
| Three Months Ended
| September 30, 2013 |  | September 30, 2012
Balance beginning of period | $ | 3,296 |  |  | $ | 2,871 |
New warranties issued | 1,304 |  |  | 1,561 |
Warranty expenditures | (1,160 | ) |  | (1,461 | )
Balance end of period | $ | 3,440 |  |  | $ | 2,971 |
Schedules of Concentration of Risk, by Risk Factor | The following table sets forth major customers accounting for 10% or more of our net revenue:
|  | Three Months Ended
|  | September 30, 2013 |  | September 30, 2012
Westcon Group Inc. |  | 18 | % |  | 15 | %
Scansource, Inc. |  | 14 | % |  | 12 | %
Tech Data |  | * |  |  | 10 | %
* Less than 10% of revenue |  |  |  |

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