NET INCOME PER SHARE

3 Months Ended

Mar. 31, 2016

(14)NET INCOME PER SHARE

The following table sets forth the computation of basic and diluted shares for the periods indicated (in thousands):


	Three Months Ended March 31,
	2016	2015

Shares used in basic earnings per share calculation	48,368	48,370
Effect of dilutive securities:
Stock options	18	384
Restricted stock units	347	401
Performance-based restricted stock units	13	3
Total effects of dilutive securities	378	788
Shares used in dilutive earnings per share calculation	48,746	49,158

For the three months ended March 31, 2016 and 2015, options to purchase 0.1 million and 0.1 million shares of common stock, respectively, were outstanding, but not included in the computation of diluted net income per share because the exercise price exceeded the value of the shares and the effect would have been anti-dilutive. For the three months ended March 31, 2016 and 2015, restricted stock units (“RSUs”) of 0.2 million and 0.5 million, respectively, were outstanding, but not included in the computation of diluted net income per share because the effect would have been anti-dilutive.