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Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Consolidated Statements Of Operations [Abstract] |  |  |  |  |  |
Revenue | $ 344,669 |  | $ 287,043 |  | $ 232,947 |
Cost of revenue: |  |  |  |  |  |
Products and services | 195,698 | [1] | 168,873 | [1] | 150,863 | [1]
Merger-related expenses | 19,966 |  |  |  |  |
Amortization of intangible assets | 9,552 |  | 5,440 |  | 5,440 |
Total cost of revenue | 225,216 |  | 174,313 |  | 156,303 |
Gross profit | 119,453 |  | 112,730 |  | 76,644 |
Operating expenses: |  |  |  |  |  |
Research and development | 67,725 | [1] | 55,412 | [1] | 46,132 | [1]
Sales and marketing | 55,551 | [1] | 42,121 | [1] | 33,486 | [1]
General and administrative | 27,002 | [1] | 27,998 | [1] | 15,613 | [1]
Merger-related and other expenses | 12,927 | [1] | 3,942 | [1] |  |
Amortization of intangible assets | 8,569 |  | 740 |  | 740 |
Total operating expenses | 171,774 |  | 130,213 |  | 95,971 |
Loss from operations | (52,321) |  | (17,483) |  | (19,327) |
Other income (expense): |  |  |  |  |  |
Interest income | 87 |  | 384 |  | 245 |
Interest expense | (184) |  | (1,188) |  | (3,867) |
Change in fair value of preferred stock warrants |  |  | (173) |  | 37 |
Other income (expense) | 92 |  | (12) |  | 119 |
Loss before provision for income taxes | (52,326) |  | (18,472) |  | (22,793) |
Provision for (benefit from) income taxes | 224 |  | 81 |  | (352) |
Net loss | (52,550) |  | (18,553) |  | (22,441) |
Preferred stock dividends |  |  | 900 |  | 3,747 |
Net loss attributable to common stockholders | $ (52,550) |  | $ (19,453) |  | $ (26,188) |
Net loss per common share: |  |  |  |  |  |
Basic and diluted | $ (1.15) |  | $ (0.65) |  | $ (6.48) |
Weighted average number of shares used to compute net loss per common share: |  |  |  |  |  |
Basic and diluted | 45,546 |  | 29,778 |  | 4,040 |
[1] | Includes stock-based compensation as follows: Years Ended December 31, 2011 2010 2009 Cost of revenue $ 1,503 $ 1,745 $ 682 Research and development 4,828 5,966 2,657 Sales and marketing 4,500 4,555 1,739 General and administrative 9,538 13,309 4,118 Merger-related and other expenses 1,234 — — $ 21,603 $ 25,575 $ 9,196

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