Net Income (Loss) Per Common Share (Tables)

6 Months Ended

Jun. 30, 2012

Net Income (Loss) Per Common Share [Abstract]

Summary Of Basic And Diluted Earnings Per Share Calculation

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except for per share amounts)	2012		2011		2012		2011
Numerator:
Net income (loss)	$	(15,780)	$	(5,679)	$	(24,582)	$	93,138
Denominator for basic net income (loss) per share		55,787		54,056		55,671		53,707
Net effect of dilutive common stock equivalents		—		—		—		2,176
Denominator for diluted net income (loss) per share:		55,787		54,056		55,671		55,883
Basic net income (loss) per share	$	(0.28)	$	(0.11)	$	(0.44)	$	1.73
Diluted net income (loss) per share	$	(0.28)	$	(0.11)	$	(0.44)	$	1.67