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Income (Loss) Per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Schedule of Income (Loss) Per Share, Basic and Diluted | The following table summarizes the basic and diluted income (loss) per share calculations (in thousands, except per share amounts):
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
Numerator - Basic |  |  |  |  |
Net income (loss) | $ | (159,457 | ) |  | $ | (156,079 | ) |  | $ | 106,110 |
Less: Net (income) loss attributable to noncontrolling interest | — |  |  | 20,741 |  |  | (27,000 | )
Less: Preferred stock dividends | — |  |  | (1 | ) |  | (2 | )
Net income (loss) available to common shareholders | $ | (159,457 | ) |  | $ | (135,339 | ) |  | $ | 79,108 |
Numerator - Diluted |  |  |  |  |
Net income (loss) attributable to common shareholders | $ | (159,457 | ) |  | $ | (135,339 | ) |  | $ | 79,108 |
Add: Net income attributable to noncontrolling interest (1), (2) | — |  |  | — |  |  | 24,784 |
Add: Preferred stock dividends (2) | — |  |  | — |  |  | 2 |
Dilutive net income (loss) available to common shareholders | $ | (159,457 | ) |  | $ | (135,339 | ) |  | $ | 103,894 |
Denominator |  |  |  |  |
Basic weighted average common shares | 222,940 |  |  | 176,584 |  |  | 154,662 |
Exchange of noncontrolling interest for common stock (Note 12) (2) | — |  |  | — |  |  | 52,976 |
Restricted stock units (2) | — |  |  | — |  |  | 1,512 |
Stock to be issued pursuant to ESPP (2) | — |  |  | — |  |  | 2 |
Diluted weighted average common shares | 222,940 |  |  | 176,584 |  |  | 209,152 |
Income (loss) per common share: |  |  |  |  |
Basic | $ | (0.72 | ) |  | $ | (0.77 | ) |  | $ | 0.51 |
Diluted | $ | (0.72 | ) |  | $ | (0.77 | ) |  | $ | 0.50 |
(1) | Adjusted for the additional tax expense upon the assumed conversion of the Preferred Stock | $ | — |  |  | $ | — |  |  | $ | 2,216 |
(2) | Approximate number of shares of potentially convertible preferred stock to common stock up until the time of conversion on August 26, 2016, unvested restricted stock units and stock to be issued pursuant to the ESPP have been excluded from the computation of diluted income (loss) per share as the effect would be anti-dilutive when the results from operations are at a net loss. | 648 |  |  | 35,556 |  |  | — |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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