Three Months Ended
September 30,

Nine Months Ended
September 30,

2023

2022

2023

2022

(Amounts in thousands, except per share data)

Numerator:

Net income

$

18,172

$

40,405

$

67,065

$

137,230

Effect of dilutive securities:

Charges associated with convertible debt instruments, net of tax

—

—

—

387

Numerator for diluted earnings per share – net income available to common stockholders after the effect of dilutive securities

$

18,172

$

40,405

$

67,065

$

137,617

Denominator:

Weighted average shares used in computing net income per share – basic

55,766

55,498

55,688

55,432

Effect of dilutive shares:

Options and stock units

439

673

469

663

Convertible Senior Notes

735

1,131

776

1,501

Dilutive effect of unvested performance stock units

-

2

-

2

Dilutive potential common shares

1,174

1,806

1,245

2,166

Denominator for diluted earnings per share – adjusted weighted average shares used in computing net income per share – diluted

56,940

57,304

56,933

57,598

Earnings per share:

Basic

$

0.33

$

0.73

$

1.20

$

2.48

Diluted

$

0.32

$

0.71

$

1.18

$

2.39