Three months ended September 30,

Nine months ended September 30,

2020

2019

2020

2019

Numerator:

Net income

$

34,453

$

15,902

$

74,865

$

58,035

Denominator:

Weighted average shares of common stock outstanding

11,766

11,731

11,772

11,823

Effect of dilutive common stock equivalents

91

334

68

351

Weighted average shares of common stock outstanding

11,857

12,065

11,840

12,174

Earnings per share - basic

$

2.93

$

1.36

$

6.36

$

4.91

Earnings per share - diluted

$

2.91

$

1.32

$

6.32

$

4.77