Year Ended December 31,

2015

2014

2013

Numerator:

Net income

$

35,172

$

35,495

$

22,898

Denominator:

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

39,470

38,686

37,387

Effect of dilutive securities

1,399

1,107

1,233

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

40,869

39,793

38,620

Net income per share:

Basic

$

0.89

$

0.92

$

0.61

Diluted

$

0.86

$

0.89

$

0.59