Earnings Per Share

Basic earnings per share (“Basic EPS”) has been computed using the weighted average number of common shares outstanding during each period. Diluted earnings per share ("Diluted EPS") assumes, as of the beginning of the period, exercise of stock options and restricted stock grants using the treasury stock method. Diluted EPS also assumes conversion of performance-based restricted stock units to common shares based on the number of shares (if any) that would be issuable, according to predetermined performance and market goals, if the end of the reporting period was the end of the performance period. Certain of our stock options and restricted stock grants that would potentially dilute Basic EPS in the future were also antidilutive for the years ended December 31, 2018 and 2017, and are discussed below.

The following is a reconciliation of the numerators and denominators used in the calculation of Basic EPS and Diluted EPS for the periods indicated below (in thousands, except per share amounts):



	Year Ended December 31, 2018					Year Ended December 31, 2017
	Net Income (Loss)		Shares	Per Share Amount		Net Income (Loss)		Shares	Per Share Amount
Basic EPS:
Net Income (Loss) and Share Amounts	$	74,615	11,655	$	6.40	$	71,971	11,453	$	6.28
Dilutive Securities:
Restricted Stock Unit Awards			94					6
Stock Option Awards			15					55
Diluted EPS:
Net Income (Loss) and Assumed Share Conversions	$	74,615	11,764	$	6.34	$	71,971	11,514	$	6.25

Approximately 0.6 million and 0.3 million stock options to purchase shares were not included in the computation of Diluted EPS for the years ended December 31, 2018 and 2017 respectively, because these stock options were antidilutive.

Less than 0.1 million and 0.1 million shares of restricted stock units that could be converted to common shares were not included in the computation of Diluted EPS for the years ended December 31, 2018 and 2017, respectively, because they were antidilutive.

Less than 0.1 million performance-based restricted stock units were not included in the computation of Diluted EPS for the year ended December 31, 2018 because they were antidilutive.

Approximately 4.3 million warrants to purchase common stock were not included in the computation of Diluted EPS for the years ended December 31, 2018 and 2017, respectively, because these warrants were antidilutive.