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Loss Per Common Share | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Loss Per Common Share | Loss Per Common Share Basic loss per common share is determined by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted loss per share is determined by dividing loss attributable to common stockholders by the weighted average number of common shares outstanding, assuming all potentially dilutive shares were issued. We apply the treasury stock method to determine the dilutive weighted average common shares represented by the unvested restricted stock units and ESPP shares. Through August 26, 2016, the date of the conversion of all of Mosing Holdings' Preferred Stock and Mosing Holdings' transfer of interest in FICV to us, the diluted loss per share calculation assumed the conversion of 100% of our outstanding Preferred Stock on an as if converted basis. Accordingly, the numerator was also adjusted to include the earnings allocated to the noncontrolling interest after taking into account the tax effect of such exchange. The following table summarizes the basic and diluted loss per share calculations (in thousands, except per share amounts):
| Year Ended December 31,
| 2018 |  | 2017 |  | 2016
Numerator |  |  |  |  |
Net loss | $ | (90,733 | ) |  | $ | (159,457 | ) |  | $ | (156,079 | )
Less: Net loss attributable to noncontrolling interest | — |  |  | — |  |  | 20,741 |
Less: Preferred stock dividends | — |  |  | — |  |  | (1 | )
Net loss available to common shareholders | $ | (90,733 | ) |  | $ | (159,457 | ) |  | $ | (135,339 | )
Denominator |  |  |  |  |
Basic and diluted weighted average common shares (1) | 223,999 |  |  | 222,940 |  |  | 176,584 |
Loss per common share: |  |  |  |  |
Basic and diluted | $ | (0.41 | ) |  | $ | (0.72 | ) |  | $ | (0.77 | )
(1) | 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 loss per share as the effect would be anti-dilutive when the results from operations are at a net loss. | 922 |  |  | 648 |  |  | 35,556 |

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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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