Numerator:

Numerator for basic and diluted earnings per share – Net income available to common shareholders

$

72,761

72,438

$

134,214

132,760

Denominator:

Denominator for basic earnings per share – weighted average shares outstanding

77,963

78,300

77,645

78,991

Effect of dilutive securities–

Employee stock options and restricted stock awards

2,252

2,187

2,400

2,454

Denominator for diluted earnings per share – adjusted weighted average shares outstanding and assumed conversions

80,215

80,487

80,045

81,445

Basic earnings per common share

$

0.93

$

0.93

$

1.73

$

1.68

Diluted earnings per common share and common share equivalents

$

0.91

$

0.90

$

1.68

$

1.63