Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Computation Of Basic And Diluted Earnings (Loss) Per Share

	Three months ended September 30,				Nine months ended September 30,
(in thousands, except per share amounts)	2011		2010		2011		2010
Basic income per common share:
Net income	$	84,945	$	64,896	$	189,248	$	744,777
Shares:
Weighted average number of common shares outstanding		214,068		212,480		213,831		212,356
Basic income per common share:
Net income per common share	$	0.40	$	0.31	$	0.89	$	3.51
Diluted income per share:
Net income	$	84,945	$	64,896	$	189,248	$	744,777
Shares:
Weighted average number of common shares outstanding		214,068		212,480		213,831		212,356
Dilutive effect of
Stock options		2,246		2,442		3,336		3,271
Restricted Shares		0		—		0		—
Weighted average number of common shares and common stock equivalent shares outstanding		216,314		214,922		217,167		215,627
Diluted income per share:
Net income per common share	$	0.39	$	0.30	$	0.87	$	3.45