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Computation of Earnings Per Share
12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Computation of Earnings Per Share

5.    Computation of Earnings Per Share

The calculation of basic earnings per common share and diluted earnings per common share is as follows (in thousands except per share amounts):

 

 

 

For The Years Ended December 31,

 

 

 

2017

 

 

2016

 

 

2015

 

Numerator:

 

 

 

 

 

 

 

 

 

 

 

 

Net income

 

$

91,156

 

 

$

48,024

 

 

$

55,016

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

Denominator for basic earnings per share–weighted

     average common shares

 

 

25,518

 

 

 

25,038

 

 

 

24,919

 

Effect of dilutive stock options and restricted stock

 

 

142

 

 

 

51

 

 

 

93

 

Effect of other common stock equivalents

 

 

426

 

 

 

591

 

 

 

459

 

Denominator for diluted earnings per share–adjusted

     weighted average common shares

 

 

26,086

 

 

 

25,680

 

 

 

25,471

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Basic Earnings Per Share

 

$

3.57

 

 

$

1.92

 

 

$

2.21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diluted Earnings Per Share

 

$

3.49

 

 

$

1.87

 

 

$

2.16

 

 

In 2017 and 2016, options and restricted stock for 61,364 and 402,770 shares of common stock, respectively, were excluded from the calculation of diluted earnings per share because their effect was anti-dilutive.