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Computation of Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2022
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,

 

 

 

2022

 

 

2021

 

 

2020

 

Numerator:

 

 

 

 

 

 

 

 

 

Net income

 

$

357,422

 

 

$

253,235

 

 

$

138,340

 

Denominator:

 

 

 

 

 

 

 

 

 

Denominator for basic earnings per share–weighted
     average common shares

 

 

26,520

 

 

 

26,322

 

 

 

26,140

 

Dilutive effect of share-based awards

 

 

154

 

 

 

385

 

 

 

452

 

Denominator for diluted earnings per share–adjusted
     weighted average common shares

 

 

26,674

 

 

 

26,707

 

 

 

26,592

 

 

 

 

 

 

 

 

 

 

 

Basic Earnings Per Share

 

$

13.48

 

 

$

9.62

 

 

$

5.29

 

 

 

 

 

 

 

 

 

 

 

Diluted Earnings Per Share

 

$

13.40

 

 

$

9.48

 

 

$

5.20