NET INCOME PER SHARE

Net income per share is based on the weighted average number of shares outstanding. A reconciliation of the shares used in the computation of basic and diluted net income per share is as follows:



	Three Months Ended June 30,		Six Months Ended June 30,
(SHARES IN THOUSANDS)	2018	2017	2018	2017
Basic	79,065	79,072	79,041	79,088
Assumed dilution under stock plans	238	233	306	272
Diluted	79,303	79,305	79,347	79,360

There were no stock options or stock-settled appreciation rights (“SSARs”) excluded from the computation of diluted net income per share for the three and six months ended June 30, 2018 and 2017.

The Company has issued shares of purchased restricted common stock and purchased restricted common stock units (collectively “PRSUs”) which contain rights to nonforfeitable dividends while these shares are outstanding and thus are considered participating securities. Such securities are required to be included in the computation of basic and diluted earnings per share pursuant to the two-class method. The Company did not present the two-class method since the difference between basic and diluted net income per share for both unrestricted common shareholders and PRSU shareholders was less than $0.01 per share for each period presented, and the number of PRSUs outstanding as of June 30, 2018 and 2017 was immaterial. Net income allocated to such PRSUs was $0.2 million for each of the three months ended June 30, 2018 and 2017, respectively, and $0.5 million during each of the six months ended June 30, 2018 and 2017.