Net Income Per Share (Tables)

6 Months Ended

Jun. 30, 2015

The following table sets forth the computation of basic and diluted net income per share:


	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Numerator:
Net income	$	33,220	$	21,224	$	67,006	$	52,469

Denominator:
Shares used in net income per common share – basic		53,384,000		53,361,000		53,299,000		53,386,000
Effect of dilutive securities:
Stock options, restricted stock and employee stock purchase plan		205,000		176,000		260,000		271,000

Shares used in net income per common share – diluted		53,589,000		53,537,000		53,559,000		53,657,000

Net income per common share:
Basic	$	0.62	$	0.40	$	1.26	$	0.98
Diluted	$	0.62	$	0.40	$	1.25	$	0.98