(Loss) Earnings per Share

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

(Loss) Earnings per Share

(Loss) Earnings per Share

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

	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2017			2016		2017			2016
Numerator:
Net (loss) income used for calculating basic and diluted (loss) earnings per common share	$	(92,281	)	$	51,626	$	(55,848	)	$	96,614
Denominator:
Weighted average number of common shares used in the calculation of basic (loss) earnings per share	89,297			82,559		86,066			82,505
Common stock equivalents associated with stock-based compensation plans (1)	—			1,152		—			1,203
Shares used in the calculation of diluted (loss) earnings per share (2)	89,297			83,711		86,066			83,708
Basic (loss) earnings per share	$	(1.03	)	$	0.63	$	(0.65	)	$	1.17
Diluted (loss) earnings per share	$	(1.03	)	$	0.62	$	(0.65	)	$	1.15

(1) Certain common stock equivalents were not included in the computation of diluted (loss) earnings per share because the effect would have been anti-dilutive. These common share equivalents totaled less than 0.3 million in both 2016 periods presented.

(2) For the three and six months ended June 30, 2017, common stock equivalents were excluded from the calculation of diluted (loss) per share because they are anti-dilutive.