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Net income (loss) per share | 3 Months Ended
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Mar. 31, 2019
Net income (loss) per share |
Net income (loss) per share | 15. Net income (loss) per share Net income (loss) per share was calculated as follows for the periods indicated below:
|  | Three Months Ended
|  | March 31,
(in thousands, except per share data) |  |  | 2019 |  | 2018
Basic Net Income (Loss) Per Share |  |  |  |  |  |
Basic net income (loss) |  | $ | 102,312 |  | $ | (41,140)
Weighted average common shares outstanding |  |  | 214,065 |  |  | 211,681
Basic net income (loss) per share |  | $ | 0.48 |  | $ | (0.19)
Diluted Net Income (Loss) Per Share |  |  |  |  |  |
Diluted net income (loss) |  | $ | 102,312 |  | $ | (41,140)
Weighted average common shares outstanding |  |  | 214,065 |  |  | 211,681
Dilutive stock options and RSUs |  |  | 2,996 |  |  | —
Weighted average shares used to compute diluted net income (loss) per share |  |  | 217,061 |  |  | 211,681
Diluted net income (loss) per share |  | $ | 0.47 |  | $ | (0.19)
The potential common shares that were excluded from the diluted net income (loss) per share computation are as follows:
|  | Three Months Ended |
|  | March 31, |
|  | 2019 |  | 2018 |
Outstanding stock options and awards |  | 9,318,013 |  | 13,104,711 |
Common shares issuable upon conversion of the 2018 Notes |  | — |  | 148,836 |
Common shares issuable upon conversion of the 2020 Notes |  | 368,939 |  | 368,939 |
Total potential common shares excluded from diluted net income (loss) per share computation |  | 9,686,952 |  | 13,622,486 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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