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Net Income (Loss) Per Share | 12 Months Ended
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Dec. 31, 2018
Net Income (Loss) Per Share |
Net Income (Loss) Per Share | Note 15. Net Income (Loss) Per Share Our basic net income (loss) per share is computed by dividing the net income (loss) by the number of weighted average common shares outstanding during the period. Our diluted net income (loss) per share is computed by dividing net income (loss) by the weighted average common shares outstanding during the period assuming potentially dilutive common shares of stock options, RSUs, PSUs and common shares issuable upon conversion of the 2018 Notes and 2020 Notes using the if-converted method. Common shares issuable upon conversion of the 2018 Notes and 2020 Notes were excluded from the diluted net income (loss) per share computation for all periods presented as their share effect was anti-dilutive. Net income (loss) per share was calculated as follows for the periods indicated below:
|  | Year Ended December 31,
(in thousands, except per share data) |  | 2018 |  | 2017 |  | 2016
Basic Net Income (Loss) Per Share |  |  |  |  |  |  |  |  |
Basic net income (loss) |  | $ | 109,493 |  | $ | (313,142) |  | $ | 104,222
Weighted average common shares outstanding |  |  | 212,383 |  |  | 204,580 |  |  | 187,873
Basic net income (loss) per share |  | $ | 0.52 |  | $ | (1.53) |  | $ | 0.55
|  |  |  |  |  | 0 |  |  | 0
Diluted Net Income (Loss) Per Share |  |  |  |  |  |  |  |  |
Diluted net income (loss) |  | $ | 109,493 |  | $ | (313,142) |  | $ | 104,222
Weighted average common shares outstanding |  |  | 212,383 |  |  | 204,580 |  |  | 187,873
Dilutive stock options and RSUs |  |  | 3,252 |  |  | — |  |  | 6,252
Weighted average shares used to compute diluted net income (loss) per share |  |  | 215,635 |  |  | 204,580 |  |  | 194,125
Diluted net income (loss) per share |  | $ | 0.51 |  | $ | (1.53) |  | $ | 0.54
The potential common shares that were excluded from the diluted net income (loss) per share computation are as follows:
|  | 2018 |  | 2017 |  | 2016 |
Outstanding stock options and awards |  | 8,255,992 |  | 12,585,213 |  | 2,792,424 |
Common shares issuable upon conversion of the 2018 Notes |  | — |  | 149,375 |  | 7,245,149 |
Common shares issuable upon conversion of the 2020 Notes |  | 368,939 |  | 368,939 |  | 7,241,284 |
Total potential common shares excluded from diluted net income (loss) per share computation |  | 8,624,931 |  | 13,103,527 |  | 17,278,857 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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