Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

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

The following table presents the computations for basic and diluted earnings per common share:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
	(in thousands, except shares and per share amounts)
Numerator:
Net income	$	30,598	$	11,328	$	364,775	$	24,300
Denominator:
Weighted average shares outstanding - basic	62,139,833		61,958,183		62,110,498		61,944,392
Dilutive securities outstanding	706,031		83,020		634,679		292,073
Weighted average shares outstanding - diluted	62,845,864		62,041,203		62,745,177		62,236,465
Earnings per share - basic	$	0.49	$	0.18	$	5.87	$	0.39
Earnings per share - diluted	$	0.49	$	0.18	$	5.81	$	0.39
Antidilutive securities outstanding (weighted average):
Stock options	13,054		16,291		14,174		16,823
Restricted shares	0		9,049		9,249		63,405
Total antidilutive securities outstanding	13,054		25,340		23,423		80,228