Net Income Per Share (Tables)

9 Months Ended

Sep. 30, 2015

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


	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Numerator:
Net income	$	29,769	$	29,117	$	96,775	$	81,586

Denominator:
Shares used in net income per common share – basic		53,314,000		53,054,000		53,304,000		53,276,000
Effect of dilutive securities:
Stock options, restricted stock and employee stock purchase plan		254,000		256,000		258,000		265,000

Shares used in net income per common share – diluted		53,568,000		53,310,000		53,562,000		53,541,000

Net income per common share:
Basic	$	0.56	$	0.55	$	1.82	$	1.53
Diluted	$	0.56	$	0.55	$	1.81	$	1.52