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Earnings per Share
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Earnings per Share
Earnings per Share
The following table sets forth the computation of basic and diluted earnings (loss) per common share:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2018
 
2017
 
2018
 
2017
 
(in thousands, except per share amounts)
Numerator
 
 
 
 
 
 
 
Net income (loss)
$
11,254

 
$
77,241

 
$
(33,668
)
 
$
108,502

Denominator
 
 
 
 
 
 
 
Weighted-average shares outstanding, basic
68,251

 
69,370

 
68,237

 
69,359

Effect of dilutive stock awards
59

 
191

 
—

 
217

Adjusted weighted-average shares outstanding, diluted
68,310

 
69,561

 
68,237

 
69,576

Net income (loss) per share
 
 
 
 
 
 
 
Basic earnings (loss) per common share
$
0.16

 
$
1.11

 
$
(0.49
)
 
$
1.56

Diluted earnings (loss) per common share
$
0.16

 
$
1.11

 
$
(0.49
)
 
$
1.56

 
 
 
 
 
 
 
 
Anti-dilutive weighted-average shares
248


17

 
264

 
52