Three Months Ended June 30,

Six Months Ended June 30,

2014

2013

2014

2013

Numerator:

Net income

$

6,397

$

5,489

$

15,415

$

7,989

Denominator:

Weighted average outstanding shares used to compute basic net income per share

38,684

37,053

38,577

36,657

Effect of dilutive securities

924

1,186

986

1,362

Weighted average outstanding shares used to compute diluted net income per share

39,608

38,239

39,563

38,019

Net income per share - basic

$

0.17

$

0.15

$

0.40

$

0.22

Net income per share - diluted

$

0.16

$

0.14

$

0.39

$

0.21