Three Months Ended September 30,

Nine Months Ended September 30,

2015

2014

2015

2014

Numerator:

Net income

$

11,201

$

11,221

$

25,063

$

26,635

Denominator:

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

39,592

38,785

39,422

38,646

Effect of dilutive securities

1,097

942

1,254

972

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

40,689

39,727

40,676

39,618

Net income per share:

Basic

$

0.28

$

0.29

$

0.64

$

0.69

Diluted

$

0.28

$

0.28

$

0.62

$

0.67