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v3.20.4

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenues: |  |  |
Net product sales | $ 248,168 | $ 227,188 | $ 193,118
Total revenues | 248,168 | 227,188 | 193,118
Operating expenses: |  |  |
Cost of goods sold excluding amortization | 23,364 | 24,488 | 20,508
Research and development | 55,577 | 48,649 | 43,594
Selling, general and administrative | 140,510 | 129,736 | 105,751
Intangible asset amortization | 1,478 | 1,505 | 1,527
Total operating expenses | 220,929 | 204,378 | 171,380
Income from operations | 27,239 | 22,810 | 21,738
Other income | 4,416 | 6,218 | 3,608
Income before income taxes | 31,655 | 29,028 | 25,346
Provision (benefit) for income taxes | 8,318 | (86,525) | 138
Net income | $ 23,337 | $ 115,553 | $ 25,208
Net income per share: |  |  |
Basic (in dollars per share) | $ 0.43 | $ 2.17 | $ 0.50
Diluted (in dollars per share) | $ 0.42 | $ 2.11 | $ 0.48
Weighted average shares outstanding: |  |  |
Basic (in shares) | 54,427,683 | 53,137,562 | 50,859,947
Diluted (in shares) | 55,190,802 | 54,847,060 | 53,045,257

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