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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Revenue: |  |  |  |  |  |
Royalties | $ 264,111 |  | $ 232,385 |  | $ 299,004 |
Contract and other revenue | 7,390 |  | 1,666 |  | 13,359 |
Total revenue | 271,501 |  | 234,051 |  | 312,363 |
Operating costs and expenses: |  |  |  |  |  |
Cost of revenue | 33,215 | [1] | 28,372 | [1] | 24,085 | [1]
Research and development | 117,981 | [1] | 140,503 | [1] | 115,696 | [1]
Marketing, general and administrative | 76,448 | [1] | 112,594 | [1] | 164,131 | [1]
Restructuring costs | 5,546 |  | 7,301 |  | 0 |
Impairment of goodwill and long-lived assets | 17,751 |  | 35,471 |  | 0 |
Gain from sale of intellectual property | (1,388) |  | 0 |  | 0 |
Gain from settlement | (535) |  | 0 |  | (6,200) |
Costs of restatement and related legal activities, net | 19 |  | 244 |  | 16,187 |
Total operating costs and expenses | 249,037 |  | 324,485 |  | 313,899 |
Operating income (loss) | 22,464 |  | (90,434) |  | (1,536) |
Interest income and other income (expense), net | (1,596) |  | 59 |  | 563 |
Interest expense | (32,885) |  | (27,510) |  | (24,828) |
Interest and other income (expense), net | (34,481) |  | (27,451) |  | (24,265) |
Loss before income taxes | (12,017) |  | (117,885) |  | (25,801) |
Provision for income taxes | 21,731 |  | 16,451 |  | 17,252 |
Net loss | $ (33,748) |  | $ (134,336) |  | $ (43,053) |
Net loss per share: |  |  |  |  |  |
Basic (in dollars per share) | $ (0.30) |  | $ (1.21) |  | $ (0.39) |
Diluted (in dollars per share) | $ (0.30) |  | $ (1.21) |  | $ (0.39) |
Weighted average shares used in per share calculations: |  |  |  |  |  |
Basic (in shares) | 112,415 |  | 110,769 |  | 110,041 |
Diluted (in shares) | 112,415 |  | 110,769 |  | 110,041 |
[1] | * Includes stock-based compensation: Cost of revenue$19 $20 $575Research and development$6,597 $9,546 $10,519Marketing, general and administrative$8,365 $12,980 $16,902

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