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 using 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 (loss) from continuing operations per share are calculated as follows:



	Three Months Ended September 30,						Nine Months Ended September 30,
In thousands, except per share data	2018			2017			2018		2017
Net income (loss) from continuing operations	$	(11,144	)	$	(7,887	)	$	30,528	$	37,585
Average common shares outstanding - basic	28,815			28,678			28,787		28,653
Additional shares for stock-based compensation plans (See Note 6)	—			—			59		81
Average common shares outstanding - diluted	28,815			28,678			28,846		28,734
Earnings (loss) from continuing operations per share of common stock - basic	$	(0.39	)	$	(0.28	)	$	1.06	$	1.32
Earnings (loss) from continuing operations per share of common stock - diluted	$	(0.39	)	$	(0.28	)	$	1.06	$	1.31
Additional information:
Antidilutive shares	73			96			4		15