Note 18. Net Income Per Share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

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

The calculation of basic and diluted net income (loss) per share for the three and six months ended June 30, 2012 and June 30, 2011 was as follows (in thousands, except per share amounts):

	Three Months Ended				Six Months Ended
	June 30, 2012		June 30, 2011		June 30, 2012			June 30, 2011
Basic net income (loss) per share
Numerator:
Net income (loss)	$	110,983	$	61,138	$	(338,433	)	$	177,106
Denominator:
Weighted-average common stock outstanding	86,855		86,164		86,681			85,746
Diluted net income (loss) per share
Denominator:
Weighted-average common stock outstanding	86,855		86,164		86,681			85,746
Effect of stock options, restricted stock units outstanding, stock purchase plan, and contingent issuable shares	798		962		—			1,346
Weighted-average shares used in computing diluted net income (loss) per share	87,653		87,126		86,681			87,092

	Three Months Ended				Six Months Ended
	June 30, 2012		June 30, 2011		June 30, 2012			June 30, 2011
Per share information — basic:
Net income (loss) per share	$	1.28	$	0.71	$	(3.90	)	$	2.07
Per share information — diluted:
Net income (loss) per share	$	1.27	$	0.70	$	(3.90	)	$	2.03

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following number of outstanding employee stock options, restricted stock units and stock purchase plan shares were excluded from the computation of diluted net income (loss) per share for the three and six months ended June 30, 2012 and June 30, 2011 as they would have had an anti-dilutive effect (in thousands):

	Three Months Ended		Six Months Ended
	June 30, 2012	June 30, 2011	June 30, 2012	June 30, 2011
Restricted stock units, stock purchase plan, and options to purchase common stock	3,681	939	2,324	515