Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares

Average shares used in computing the basic and diluted earnings per share are as follows:

	December 31,
	2019	2018	2017
Basic computation	50,428,560	49,984,562	48,557,599
Dilutive effect of
Performance and restricted share awards (1)	323,298	252,909	97,722
Diluted computation	50,751,858	50,237,471	48,655,321

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(1)           Performance share awards are included in diluted weighted average number of shares outstanding based upon what would be issued if the end of the most recent reporting period was the end of the term of the award.