Earnings (Loss) Per Share	3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]
Earnings (Loss) Per Share	EARNINGS (LOSS) PER SHARE Basic loss per share is computed by dividing our net loss by the weighted average number of shares outstanding during the period. For diluted earnings per share, the dilutive impact of stock options and warrants is determined by applying the “treasury stock” method. The dilutive impact of the 2033 Senior Notes and 2023 Convertible Notes has been considered using the “if converted” method. In the periods in which their effect would be antidilutive, no effect has been given to outstanding options, warrants or the potentially dilutive shares issuable pursuant to the 2033 Senior Notes and 2023 Convertible Notes (discussed in Note 6) in the dilutive computation. A total of 16,570,675 and 2,623,001 potential shares of Common Stock have been excluded from the calculation of diluted net loss per share for three months ended March 31, 2018 and 2017, respectively, because their inclusion would be antidilutive. A full presentation of diluted earnings per share has not been provided because the required adjustments to the numerator and denominator resulted in diluted earnings per share equivalent to basic earnings per share. During the three months ended March 31, 2018, no Common Stock options and Common Stock warrants to purchase shares of our Common Stock were exercised. During the three months ended March 31, 2017, 1,106,872 Common Stock options and Common Stock warrants to purchase shares of our Common Stock were exercised, resulting in the issuance of 1,021,890 shares of Common Stock. Of the 1,106,872 Common Stock options and Common Stock warrants exercised, 84,982 shares of Common Stock were surrendered in lieu of a cash payment via the net exercise feature of the agreements.

EARNINGS (LOSS) PER SHARE

Basic loss per share is computed by dividing our net loss by the weighted average number of shares outstanding during the period. For diluted earnings per share, the dilutive impact of stock options and warrants is determined by applying the “treasury stock” method. The dilutive impact of the 2033 Senior Notes and 2023 Convertible Notes has been considered using the “if converted” method. In the periods in which their effect would be antidilutive, no effect has been given to outstanding options, warrants or the potentially dilutive shares issuable pursuant to the 2033 Senior Notes and 2023 Convertible Notes (discussed in Note 6) in the dilutive computation.

A total of 16,570,675 and 2,623,001 potential shares of Common Stock have been excluded from the calculation of diluted net loss per share for three months ended March 31, 2018 and 2017, respectively, because their inclusion would be antidilutive. A full presentation of diluted earnings per share has not been provided because the required adjustments to the numerator and denominator resulted in diluted earnings per share equivalent to basic earnings per share.

During the three months ended March 31, 2018, no Common Stock options and Common Stock warrants to purchase shares of our Common Stock were exercised.

During the three months ended March 31, 2017, 1,106,872 Common Stock options and Common Stock warrants to purchase shares of our Common Stock were exercised, resulting in the issuance of 1,021,890 shares of Common Stock. Of the 1,106,872 Common Stock options and Common Stock warrants exercised, 84,982 shares of Common Stock were surrendered in lieu of a cash payment via the net exercise feature of the agreements.