Earnings Per Share

12 Months Ended

Dec. 31, 2016

Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]

3. EARNINGS PER SHARE

Basic earnings per share are computed using net income and the weighted average number of common shares outstanding for each period presented. Diluted earnings per share are computed in the same manner, except it uses the weighted average number of common shares outstanding plus the effects of the assumed exercise of stock options and the payment of estimated stock awards from other stock-based compensation plans that are outstanding at the end of each period presented. Antidilutive stock awards are excluded from the calculation of diluted earnings per common share. Diluted earnings per share are calculated as follows:



In thousands, except per share data	2016		2015		2014
Net income	$	58,895	$	53,703	$	58,692
Average common shares outstanding - basic	27,647		27,347		27,164
Additional shares for stock-based compensation plans (See Note 6)	132		70		59
Average common shares outstanding - diluted	27,779		27,417		27,223
Earnings per share of common stock - basic	$	2.13	$	1.96	$	2.16
Earnings per share of common stock - diluted	$	2.12	$	1.96	$	2.16
Additional information:
Antidilutive shares	5		12		18