Weighted Average Shares Outstanding (Tables)

12 Months Ended

Dec. 31, 2018

Weighted Average Shares Outstanding [Abstract]

Schedule of Weighted Average Number of Shares

A reconciliation of the weighted-average number of common shares outstanding used in the calculation of basic and diluted earnings per share follows:

	Weighted-Average Common Shares Outstanding
	2018	2017	2016
Basic	52,304,190	54,073,407	54,191,013
Dilutive effect of:
Stock options	260,240	258,052	166,986
Performance share awards	267,176	273,839	273,314
Diluted	52,831,606	54,605,298	54,631,313