Computation of Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Summary of Calculation of Basic Earnings Per Common Share and Diluted Earnings Per Common Share

The calculation of basic earnings per common share and diluted earnings per common share was as follows (in thousands, except per share amounts):

	First Quarter
	2019		2018
Numerator:
Net income	$	22,259	$	21,125
Denominator:
Denominator for basic  earnings per share–weighted      average common shares		25,873		25,698
Effect of dilutive stock options		125		172
Effect of other common stock equivalents		324		438
Denominator for diluted earnings per share–adjusted      weighted average common shares		26,322		26,308
Basic Earnings Per Share	$	0.86	$	0.82
Diluted Earnings Per Share	$	0.85	$	0.80