Twelve Months Ended December 31,

2023

2022

2021

Earnings (numerator)

Net income attributable to common stockholders

$

227,182

$

331,283

$

228,763

Shares (denominator)

Weighted average common shares outstanding (basic)

45,803

45,330

44,772

Dilutive effect of stock options and stock awards outstanding

508

706

1,009

Adjusted weighted average common shares outstanding (diluted)

46,311

46,036

45,781

Earnings per share attributable to common stockholders

Basic

$

4.96

$

7.31

$

5.11

Diluted

$

4.91

$

7.20

$

5.00

Stock options and stock awards excluded from EPS
   calculation because their inclusion would be
   anti-dilutive

138

82

1