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Common and Common Equivalent Shares

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Common and Common Equivalent Shares

12.    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, 2017, 2016 and 2015 is as follows (in thousands):

		Years Ended December 31,
		2017				2016				2015
Weighted average number of common shares outstanding			92,431				92,422				93,077
Weighted average number of dilutive common share equivalents			527				687				883
Weighted average number of common and common equivalent shares outstanding			92,958				93,109				93,960
Antidilutive securities not included in the diluted net income per common share calculation			107				2				—

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- Definition

The entire disclosure for earnings per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-URI http://asc.fasb.org/topic&trid=2144383

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