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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010
Revenue: |  |  |  |  |  |  |  |
Royalties | $ 96,216 |  | $ 31,179 |  | $ 216,421 |  | $ 229,913 |
Contract revenue | 4,047 |  | 564 |  | 12,583 |  | 2,556 |
Total revenue | 100,263 |  | 31,743 |  | 229,004 |  | 232,469 |
Operating costs and expenses: |  |  |  |  |  |  |  |
Cost of revenue | 7,425 | [1] | 1,368 | [1] | 16,632 | [1] | 5,026 | [1]
Research and development | 32,318 | [2] | 23,002 | [2] | 79,855 | [2] | 67,678 | [2]
Marketing, general and administrative | 48,952 | [3] | 27,938 | [3] | 119,416 | [3] | 88,873 | [3]
Costs of restatement and related legal activities | 832 |  | 1,229 |  | 2,703 |  | 3,393 |
Gain from settlement |  |  | (10,300) |  | (6,200) |  | (116,500) |
Total operating costs and expenses | 89,527 |  | 43,237 |  | 212,406 |  | 48,470 |
Operating income (loss) | 10,736 |  | (11,494) |  | 16,598 |  | 183,999 |
Interest income and other income (expense), net | (768) |  | 312 |  | (2,197) |  | 1,053 |
Interest expense on convertible notes | (5,410) |  | (4,953) |  | (15,794) |  | (14,709) |
Interest and other income (expense), net | (6,178) |  | (4,641) |  | (17,991) |  | (13,656) |
Income (loss) before income taxes | 4,558 |  | (16,135) |  | (1,393) |  | 170,343 |
Provision for income taxes | 4,080 |  | 4,441 |  | 12,944 |  | 52,510 |
Net income (loss) | $ 478 |  | $ (20,576) |  | $ (14,337) |  | $ 117,833 |
Net income (loss) per share: |  |  |  |  |  |  |  |
Basic (in dollars per share) | $ 0.00 |  | $ (0.18) |  | $ (0.13) |  | $ 1.04 |
Diluted (in dollars per share) | $ 0.00 |  | $ (0.18) |  | $ (0.13) |  | $ 1.01 |
Weighted average shares used in per share calculation: |  |  |  |  |  |  |  |
Basic (in shares) | 112,334 |  | 111,866 |  | 109,997 |  | 112,768 |
Diluted (in shares) | 115,552 |  | 111,866 |  | 109,997 |  | 116,347 |
[1] | Cost of revenue includes stock-based compensation of $90 and $17 for three months ended September 30, 2011 and 2010 and $499 and $146 for nine months ended September 30, 2011 and 2010 respectively.
[2] | Research and development includes stock-based compensation of $2,775 and $2,470 for three months ended September 30, 2011 and 2010 and $7,777 and $7,742 for nine months ended September 30, 2011 and 2010 respectively.
[3] | Marketing, general and administrative includes stock-based compensation of $4,354 and $4,976 for three months ended September 30, 2011 and 2010 and $13,262 and $15,340 for nine months ended September 30, 2011 and 2010 respectively.

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