Net Income (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2012

Earnings Per Share [Abstract]

Computation Of Net Income (Loss) Per Share

The computation of net income (loss) per share is as follows:

	Three Months Ended
	March 31, 2012			March 31, 2011
	(in thousands, except per share data)
Basic earnings per share:
Net income (loss)	$	(4,584	)	$	60,233
Shares used in computation:
Weighted-average common shares outstanding	55,456			52,759
Basic earnings per share	$	(0.08	)	$	1.14
Diluted earnings per share:
Net income (loss)	$	(4,584	)	$	60,233
Shares used in computation:
Weighted-average common shares outstanding	55,456			52,759
Employee stock options	—			1,487
Weighted-average number of shares	55,456			54,246
Diluted earnings per share	$	(0.08	)	$	1.11