Three Months Ended

September 30,

Nine Months Ended

September 30,

2020

2019

2020

2019

Numerator:

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

$

33,939

$

39,104

$

73,862

$

117,829

Denominator:

Denominator for basic earnings per share – weighted average shares outstanding

55,033

54,817

54,734

55,116

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

1,410

1,209

1,195

1,322

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

56,443

56,026

55,929

56,438

Basic earnings per common share

$

0.62

$

0.71

$

1.35

$

2.14

Diluted earnings per common share and common share equivalents

$

0.60

$

0.70

$

1.32

$

2.09