The following table presents a reconciliation of basic and diluted net income (loss) per common share for the years ended December 31, 2016, 2015 and 2014 (in thousands, except per share data): | | | | | | | | | | | | | | Years Ended December 31, | | 2016 | | 2015 | | 2014 | Numerator for basic and diluted net income (loss) per common share: | | | | | | Income (loss) from continuing operations | $ | (194,366 | ) | | $ | (28,126 | ) | | $ | 48,109 |
| Income (loss) from discontinued operations, net of tax | (33,571 | ) | | 54,774 |
| | 67,183 |
| Less: Net income attributable to participating securities | — |
| | — |
| | — |
| Net income (loss) — used in basic and diluted net income (loss) per common share | $ | (227,937 | ) | | $ | 26,648 |
| | $ | 115,292 |
| | | | | | | Weighted average common shares outstanding including participating securities | 35,489 |
| | 34,437 |
| | 34,286 |
| Less: Weighted average participating securities outstanding | (921 | ) | | (149 | ) | | — |
| Weighted average common shares outstanding — used in basic net income (loss) per common share | 34,568 |
| | 34,288 |
| | 34,286 |
| Net dilutive potential common shares issuable: |
|
| | | | | On exercise of options and vesting of restricted stock units | * |
| | * |
| | — |
| Weighted average common shares outstanding — used in diluted net income (loss) per common share | 34,568 |
| | 34,288 |
| | 34,286 |
| | | | | | | Net income (loss) per common share: | | | | | | Basic | $ | (6.59 | ) | | $ | 0.78 |
| | $ | 3.36 |
| Diluted | $ | (6.59 | ) | | $ | 0.78 |
| | $ | 3.36 |
|
| | * | Excluded from diluted net income (loss) per common share as their inclusion would have been anti-dilutive. |
|