Earnings Per Share

3 Months Ended

Mar. 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:



	Three Months Ended March 31,
In thousands, except per share data	2016		2015
Net income	$	36,641	$	28,486
Average common shares outstanding - basic	27,448		27,301
Additional shares for stock-based compensation plans (See Note 5)	112		68
Average common shares outstanding - diluted	27,560		27,369
Earnings per share of common stock - basic	$	1.33	$	1.04
Earnings per share of common stock - diluted	$	1.33	$	1.04
Additional information:
Antidilutive shares	22		28