Common and Common Equivalent Shares

12 Months Ended

Dec. 31, 2020

15.	Common and Common Equivalent Shares:

The calculation of shares used in the basic and diluted net income per share calculation for the years ended December 31, 2020, 2019, and 2018 is as follows (in thousands):


	Years Ended December 31,
	2020		2019		2018
Weighted average number of common shares outstanding		83,395		83,495		91,104
Weighted average number of dilutive common share equivalents (a)		—		516		502

Weighted average number of common and common equivalent shares outstanding		83,395		84,011		91,606

Antidilutive securities not included in the diluted net income per common share calculation		1,034		516		214

(a)	Due to a loss from continuing operations for the year ended December 31, 2020, no incremental shares are included because the effect would be antidilutive.