Earnings Per Share (tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

EPS Calculation Table Text Block

	Three Months Ended
	March 31,
In thousands, except per share data	2015		2014
Net income	$	28,486	$	37,884
Average common shares outstanding - basic	27,301		27,094
Additional shares for stock-based compensation plans outstanding	68		32
Average common shares outstanding - diluted	27,369		27,126
Earnings per share of common stock - basic	$	1.04	$	1.40
Earnings per share of common stock - diluted	$	1.04	$	1.40
Additional information:
Antidilutive shares excluded from net income per diluted common share calculation	28		44