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Computation of Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Summary of Calculation of Basic Earnings Per Common Share and Diluted Earnings Per Common 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,

 

 

 

2021

 

 

2020

 

 

2019

 

Numerator:

 

 

 

 

 

 

 

 

 

 

 

 

Net income

 

$

253,235

 

 

$

138,340

 

 

$

113,719

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

Denominator for basic earnings per share–weighted

     average common shares

 

 

26,322

 

 

 

26,140

 

 

 

25,952

 

Dilutive effect of share-based awards

 

 

385

 

 

 

452

 

 

 

483

 

Denominator for diluted earnings per share–adjusted

     weighted average common shares

 

 

26,707

 

 

 

26,592

 

 

 

26,435

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Basic Earnings Per Share

 

$

9.62

 

 

$

5.29

 

 

$

4.38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diluted Earnings Per Share

 

$

9.48

 

 

$

5.20

 

 

$

4.30