Common and Common Equivalent Shares

6 Months Ended

Jun. 30, 2020

8.	Common and Common Equivalent Shares:

Basic net income per common share is calculated by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per common share is calculated by dividing net income by the weighted average number of common and potential common shares outstanding during the period. Potential common shares consist of outstanding restricted stock, deferred stock and stock options and is calculated using the treasury stock method.

The calculation of shares used in the basic and diluted net income per common share calculation for the three and six months ended June 30, 2020 and 2019 is as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Weighted average number of common shares outstanding		83,490		83,234		83,061		84,623
Weighted average number of dilutive common share equivalents		255		455		—		464

Weighted average number of common and common equivalent shares outstanding (a)		83,745		83,689		83,061		85,087

Antidilutive securities not included in the diluted net income per common share calculation		1,335		923		1,092		713

(a)	Due to a loss from continuing operations for the six months ended June 30, 2020, no incremental shares are included because the effect would be antidilutive.