Numerator:

Net income

$

26,922

$

70,373

$

110,354

Denominator:

Basic earnings per common share - weighted-average shares

81,406

81,272

81,692

Effect of dilutive stock options

66

141

267

Diluted earnings per common share - weighted-average shares and assumed conversions

81,472

81,413

81,959

Basic earnings per common share

$

0.33

$

0.87

$

1.35

Diluted earnings per common share

$

0.33

$

0.86

$

1.35