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Earnings Per Share
 12 Months Ended
Dec. 31, 2017
Earnings Per Share Reconciliation [Abstract]  
Earnings Per Share
Earnings Per Share
The following table presents a reconciliation of the numerators and denominators of the basic and diluted earnings per share calculations:
 
Year Ended December 31,
 
2017
 
2016
 
2015
 
Income
(Numerator)
 
Weighted
Shares
(Denominator)
 
Per-Share
Amount
 
Income
(Numerator)
 
Weighted
Shares
(Denominator)
 
Per-Share
Amount
 
Income
(Numerator)
 
Weighted
Shares
(Denominator)
 
Per-Share
Amount
 
(Amounts and numbers in thousands, except per-share data)
Basic EPS
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Income available to common stockholders
$
144,877

 
55,316

 
$
2.62

 
$
73,044

 
55,249

 
$
1.32

 
$
74,479

 
55,157

 
$
1.35

Effect of dilutive securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Options
—

 
11

 
 
 
—

 
11

 
 
 
—

 
15

 
 
RSUs
—

 
—

 
 
 
—

 
42

 
 
 
—

 
37

 
 
Diluted EPS
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Income available to common stockholders after assumed conversions
$
144,877

 
55,327

 
$
2.62

 
$
73,044

 
55,302

 
$
1.32

 
$
74,479

 
55,209

 
$
1.35



Potentially dilutive securities representing approximately 0, 27,600, and 67,000 shares of common stock for 2017, 2016, and 2015, respectively, were excluded from the computation of diluted earnings per common share because their effect would have been anti-dilutive.