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Earnings Per Share | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share Basic earnings per share ("EPS") is calculated by dividing net income by the weighted average number of shares of common stock outstanding. Diluted EPS includes the components of basic EPS and also gives effect to dilutive common stock equivalents. For purposes of calculating basic and diluted earnings per share, vested restricted stock awards are considered outstanding. Under the treasury stock method, diluted EPS reflects the potential dilution that could occur if securities or other instruments that are convertible into common stock were exercised or could result in the issuance of common stock. Potentially dilutive common stock equivalents include unvested restricted stock, restricted stock units and convertible debt instruments and warrants. During the years ended December 31, 2018, 2017 and 2016, the Company reported a consolidated net loss. As a result of the net loss, unvested restricted stock, restricted stock units and convertible debt instruments and warrants were antidilutive for each year and were not included in the computation of diluted weighted average shares. The weighted average restricted stock and restricted stock units excluded from the calculations of diluted net loss per share were 6.4 million, 5.2 million and 4.3 million for the years ended December 31, 2018, 2017 and 2016, respectively. The calculation of diluted weighted average shares excludes the impact of conversion of the principal amount of $316.3 million of the Company's 2.75% convertible senior notes which were repaid in cash at their maturity on June 15, 2018. Refer to Note 9 for more information about the Company's former convertible notes. As of December 31, 2017 and 2016, the maximum number of shares issuable upon conversion of the notes was approximately 13.8 million (after giving effect to additional make-whole shares issuable upon conversion in connection with the occurrence of certain events). As of December 31, 2017 and 2016, the maximum number of shares issuable upon conversion of the notes in excess of the amount of principal that would be settled in cash was approximately 3.0 million. In addition, the calculation of diluted weighted average shares excludes the impact of the exercise of warrants to acquire the Company's common stock. As of December 31, 2018, 2017 and 2016, the number of shares issuable upon exercise of the warrants was approximately 0.5 million, 10.8 million, and 10.8 million, respectively. Subsequent to December 31, 2018, the option to exercise the remaining outstanding warrants expired unexercised.

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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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