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Earnings Per Share
6 Months Ended
Jun. 30, 2025
Earnings Per Share  
Earnings Per Share

5. Earnings Per Share

Basic earnings per share is calculated by dividing the net income or loss by the weighted-average number of shares of common stock outstanding during the period, without consideration for potentially dilutive securities. Diluted earnings per share is computed by dividing the net income or loss by the weighted-average number of shares of common stock, plus potentially dilutive securities outstanding for the period, as determined in accordance with the treasury stock, if-converted, or contingently issuable accounting methods, depending on the nature of the security. For purposes of the diluted earnings per share calculation, stock options, restricted stock units (“RSUs”), performance share units (“PSUs”), and shares potentially issuable in connection with the Company’s employee stock purchase plan and convertible senior notes are considered potentially dilutive securities and included to the extent that their addition is not antidilutive.

The following table presents the computations of basic and dilutive earnings per common share:

Three Months Ended June 30,

Six Months Ended June 30,

2025

2024

    

2025

2024

Numerator:

Net income

$

11,983

$

19,606

$

14,400

$

47,319

Adjustment for interest expense recognized on convertible senior notes

1,482

1,477

2,960

2,942

Net income - diluted

$

13,465

$

21,083

$

17,360

$

50,261

Denominator:

Weighted-average shares outstanding — basic

31,810,612

    

32,433,025

31,802,222

    

32,379,807

Effect of dilutive securities:

Stock options

213,054

393,128

231,458

430,273

Restricted stock units

445,593

949,383

643,312

1,093,741

Employee stock purchase plan

139

1,853

817

Convertible senior notes

6,606,305

6,606,305

6,606,305

6,606,305

Weighted average shares outstanding — diluted

39,075,703

40,383,694

39,283,297

40,510,943

Earnings per share — basic

$

0.38

$

0.60

$

0.45

$

1.46

Earnings per share — diluted

$

0.34

$

0.52

$

0.44

$

1.24

The following table presents dilutive securities excluded from the calculation of diluted earnings per share:

Three Months Ended June 30,

Six Months Ended June 30,

2025

 

2024

 

2025

 

2024

Stock options

130,344

130,344

Restricted stock units

666,052

5,150

224,465

6,200

Performance share units

313,642

223,680

313,642

223,680

Employee stock purchase plan

32,320

For PSUs, these securities were excluded from the calculation of diluted earnings per share as the market-based vesting conditions were not met as of the end of the reporting period. All other securities presented in the table above were excluded from the calculation of diluted earnings per share as their inclusion would have had an antidilutive effect.