Net Income (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three months ended March 31,
In thousands except per share amounts	2014			2013
Net income (loss) available to common stockholders	$	(37,191	)	$	12,270
Weighted average shares
Basic	102,365			89,948
Effect of share based compensation plans	—			88
Diluted	102,365			90,036
Income (loss) per share:
Basic	$	(0.36	)	$	0.14
Diluted	$	(0.36	)	$	0.14