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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Revenue: |  |  |  |
Royalties | $ 73,637 |  | $ 66,222 |
Contract and other revenue | 4,651 |  | 644 |
Total revenue | 78,288 |  | 66,866 |
Operating costs and expenses: |  |  |  |
Cost of revenue | 10,022 | [1] | 6,534 | [1]
Research and development | 26,898 | [1] | 32,848 | [1]
Marketing, general and administrative | 18,820 | [1] | 25,122 | [1]
Gain from sale of intellectual property | (170) |  | (1,285) |
Restructuring charges | 39 |  | 2,206 |
Gain from settlement | (510) |  | 0 |
Total operating costs and expenses | 55,099 |  | 65,425 |
Operating income (loss) | 23,189 |  | 1,441 |
Interest income and other income (expense), net | 13 |  | (20) |
Interest expense | (9,926) |  | (7,312) |
Interest and other income (expense), net | (9,913) |  | (7,332) |
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest | 13,276 |  | (5,891) |
Provision for income taxes | 5,472 |  | 4,511 |
Net income (loss) | $ 7,804 |  | $ (10,402) |
Net income (loss) per share: |  |  |  |
Earnings Per Share, Basic | $ 0.07 |  | $ (0.09) |
Earnings Per Share, Diluted | $ 0.07 |  | $ (0.09) |
Weighted average shares used in per share calculation: |  |  |  |
Basic (in shares) | 113,590 |  | 111,599 |
Diluted (in shares) | 116,629 |  | 111,599 |
[1] | Includes stock-based compensation

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