Three Months Ended

September 30,

Nine Months Ended

September 30,

2019

2018

2019

2018

Numerator:

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

$

39,104

$

41,665

$

117,829

$

92,093

Denominator:

Denominator for basic earnings per share – weighted average shares outstanding

36,545

39,309

36,744

39,480

Effect of dilutive securities – Employee and director stock options and restricted share awards

806

1,079

881

1,155

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

37,351

40,388

37,625

40,635

Basic earnings per common share

$

1.07

$

1.06

$

3.21

$

2.33

Diluted earnings per common share and common share equivalents

$

1.05

$

1.03

$

3.13

$

2.27