WEIGHTED AVERAGE SHARE COUNTS

12 Months Ended

Dec. 31, 2020

Weighted Average Share Counts

NET INCOME PER SHARE

(18)WEIGHTED AVERAGE SHARE COUNTS

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

	Year Ended December 31,
	2020	2019	2018
Shares used in basic earnings per share calculation	46,647	46,373	46,064
Effect of dilutive securities:
Stock options	—	—	6
Restricted stock units	318	349	314
Performance-based restricted stock units	28	36	1
Total effects of dilutive securities	346	385	321
Shares used in dilutive earnings per share calculation	46,993	46,758	46,385

For the years ended December 31, 2020, 2019 and 2018, there were no options to purchase shares of common stock or performance-based restricted stock that 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 years ended December 31, 2020, 2019 and 2018, restricted stock units of 8 thousand, 28 thousand, and 212 thousand, respectively, were outstanding but not included in the computation of diluted net income per share because the effect would have been anti-dilutive.