EARNINGS PER SHARE

Basic earnings per share is computed using the weighted-average number of common shares outstanding during the applicable period. Diluted earnings per share is computed using the weighted-average number of common shares outstanding during the applicable period, plus the dilutive effect of outstanding stock options and RSUs, using the treasury stock method. In periods of loss, all stock options and RSUs are excluded, as their inclusion would be anti-dilutive.

The calculation of the basic and diluted earnings per share was:



	Three Months Ended March 31,
(in thousands, except per share amounts)	2019			2018
Basic
Net (loss) income	$	(28,717	)	$	12,200
Weighted-average common shares outstanding	78,584			78,236
(Loss) earnings per share, basic	$	(0.37	)	$	0.16

Diluted
Net (loss) income	$	(28,717	)	$	12,200
Weighted-average effect of dilutive securities:
Stock options	—			3,119
RSUs	—			1,747
Effect of dilutive securities	—			4,866
Weighted-average common shares outstanding, assuming dilution	78,584			83,102
(Loss) earnings per share, diluted	$	(0.37	)	$	0.15

Outstanding anti-dilutive stock options and RSUs ⁽¹⁾	5,563			397

⁽¹⁾ Certain outstanding stock options and RSUs were excluded from the computation of diluted earnings per share because they were anti-dilutive in the period presented. These awards may be dilutive in the future.