Three Months Ended June 30,

Six Months Ended June 30,

2022

2021

2022

2021

Class A

Class B

Class A

Class B

Class A

Class B

Class A

Class B

(in thousands, except per share data)

Numerator

Net income

$

9,035

$

7,238

$

15,858

$

15,680

$

21,475

$

17,366

$

26,556

$

27,234

Reallocation of undistributed earnings as a result of conversion of Class B to Class A common stock

7,238

—

15,680

—

17,366

—

27,234

—

Reallocation of undistributed earnings to Class B common stock

—

160

—

434

—

411

—

767

Net income attributable to common
   stockholders — diluted

$

16,273

$

7,398

$

31,538

$

16,114

$

38,841

$

17,777

$

53,790

$

28,001

Denominator

Weighted average shares used
   to compute earnings per 
   share — basic

40,706

32,606

36,397

35,990

40,521

32,768

35,588

36,497

Conversion of Class B to Class A 
   common stock outstanding

32,606

—

35,990

—

32,768

—

36,497

—

Effect of dilutive stock options 
   and RSUs

1,323

1,323

2,035

2,035

1,431

1,431

2,143

2,143

Weighted average number of shares   
   used to compute earnings 
   per share — diluted

74,635

33,929

74,422

38,025

74,720

34,199

74,228

38,640

Earnings per share:

Basic

$

0.22

$

0.22

$

0.44

$

0.44

$

0.53

$

0.53

$

0.75

$

0.75

Diluted

$

0.22

$

0.22

$

0.42

$

0.42

$

0.52

$

0.52

$

0.72

$

0.72