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Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]  
Schedule of earnings (loss) per share, basic and diluted
The following is a reconciliation of the calculation of basic and diluted earnings per share (in thousands, except share and per share data):
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
Numerator:
 
 
 
 
 
 
 
Net income
$
21,623

 
$
29,937

 
$
67,105

 
$
90,890

Denominator:
 
 
 
 
 
 
 
Weighted-average number of common shares outstanding—basic
200,834,910

 
201,297,846

 
200,767,104

 
201,188,563

Effect of dilutive securities:
 
 
 
 
 
 
 
Unvested restricted common stock
173,557

 
58,115

 
170,612

 
—

Shares related to unvested PSUs
415,933

 
383,643

 
415,933

 
383,643

Weighted-average number of common shares outstanding—diluted
201,424,400

 
201,739,604

 
201,353,649

 
201,572,206

Earnings per share:


 
 
 


 


Basic earnings per share
$
0.11

 
$
0.15

 
$
0.33

 
$
0.45

Diluted earnings per share
$
0.11

 
$
0.15

 
$
0.33

 
$
0.45