Computation of Net Income (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Schedule of basic and diluted (loss) earnings per share calculations

The following table sets forth the calculation of basic and diluted income (loss) per share for the periods indicated (in thousands, except per share data):



	Three Months Ended
	March 31,
	2019		2018
Numerator:
Net income (loss) used for calculating basic and diluted income (loss) per common share	$	20,795	$	(19,587	)

Denominator:
Weighted average common shares used in the calculation of basic income (loss) per share	89,882		91,005
Common stock equivalents associated with stock-based compensation plans (1)	1,122		—
Shares used in the calculation of diluted income (loss) per share	91,004		91,005

Basic income (loss) per share	$	0.23	$	(0.22	)
Diluted income (loss) per share	$	0.23	$	(0.22	)

(1)

For the three months ended March 31, 2019, certain common stock equivalents were not included in the computation of diluted income (loss) per share because the effect would have been anti-dilutive. These common share equivalents totaled approximately 0.2 million. For the three months ended March 31, 2018, approximately 1.3 million common stock equivalents were completely excluded from the calculation of diluted income (loss) per share because they were anti-dilutive.