Organization And Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Computation Of Net Income Per Share

The computation of earnings per share is as follows:

	Year ended December 31,
	2012		2011		2010
	(in thousands, except per share data)
Basic earnings per share:
Net income	$	17,152	$	226,126	$	160,853
Shares used in computation:
Weighted-average common shares outstanding	55,521		52,847		52,529
Basic earnings per share	$	0.31	$	4.28	$	3.06
Diluted earnings per share:
Net income	$	17,152	$	226,126	$	160,853
Convertible Notes interest expense, net of tax	195		17		—
Numerator for diluted earnings per share	17,347		226,143		160,853
Shares used in computation:
Weighted-average common shares outstanding	55,521		52,847		52,529
Convertible notes shares	2,331		217		—
Employee stock options and employee stock purchase plan shares	1,052		1,305		1,775
Weighted-average number of shares	58,904		54,369		54,304
Diluted earnings per share	$	0.29	$	4.16	$	2.96

Summary Of Potential Common Shares Excluded From Diluted Calculation

The following table summarizes the potential common shares excluded from the diluted calculation:

	Year ended December 31,
	2012	2011	2010
	(in thousands)
Employee stock options	1,207	225	14