EARNINGS (LOSS) PER SHARE

The following are computations of basic and diluted earnings (loss) per share (in thousands except for per share amounts):



	Years Ended December 31,
	2018		2017		2016
Numerator for basic and diluted earnings (loss) per share:
Net income (loss)	$	65,636	$	100,739	$	(39,873	)
Denominator:
Weighted basic shares outstanding	56,148		57,072		57,532
Dilutive effect of equity-based compensation awards	192		128		—
Weighted dilutive shares outstanding	56,340		57,200		57,532

Basic earnings (loss) per share	$	1.17	$	1.77	$	(0.69	)
Diluted earnings (loss) per share	$	1.16	$	1.76	$	(0.69	)

For the years ended December 31, 2018 and 2017, all then outstanding performance awards and restricted stock awards were included in the calculation of diluted earnings per share except for 79,390 and 152,831, respectively, of performance stock awards for which the performance criteria were not attained at the time and 121,803 and 49,373, respectively, of restricted stock awards which were excluded as their inclusion would have an antidilutive effect. As a result of the net loss reported for the year ended December 31, 2016, all outstanding stock options, restricted stock awards and performance awards, totaling 730,929 potentially dilutive shares, were excluded from the calculation of diluted loss per share as their inclusion would have an antidilutive effect.