Stockholders' Equity and Employee Stock Option Plans Stock Award Activity (Tables)

12 Months Ended

Dec. 31, 2012

Stock Award Activity [Abstract]

Schedule Of Share Based Compensation Stock Options, RSU and SARS Activity [Table Text Block]

The following table summarizes stock award activity under all plans for the years endedDecember 31, 2012, 2011, and 2010:

			Options Outstanding
	Shares Available for Grant		Number Outstanding		Weighted-Average Exercise Price Per Share
BALANCE AT DECEMBER 31, 2009	9,983,699		5,928,776		$	8.45
Options and stock appreciation rights granted	(342,900	)	342,900		7.68
RSUs granted	(1,628,183	)	—		—
Options and stock appreciation rights cancelled	348,913		(348,913	)	10.42
RSUs cancelled	168,298		—		—
Options exercised	—		(1,647,115	)	7.61
Unissued shares returned to plan	1,260,465		—		—
1998 Directors Plan shares expired	(10,000	)	—		—
Additional shares reserved	1,640,230		—		—
BALANCE AT DECEMBER 31, 2010	11,420,522		4,275,648		$	8.55
Options and stock appreciation rights granted	(313,750	)	313,750		8.26
RSUs granted	(1,381,070	)	—		—
Options and stock appreciation rights cancelled	981,365		(981,365	)	8.64
RSUs cancelled	480,571		—		—
Options exercised	—		(504,561	)	7.15
Unissued shares returned to plan	190,406		—		—
1998 Directors Plan shares expired	(10,000	)	—		—
Additional shares reserved	1,679,692		—		—
BALANCE AT DECEMBER 31, 2011	13,047,736		3,103,472		$	8.71
Options granted	(1,883,388	)	1,883,388		3.21
RSUs granted	(700,987	)	—		—
Options and stock appreciation rights cancelled	1,047,545		(1,047,545	)	8.73
RSUs cancelled	315,817		—		—
Options exercised	—		—		—
Unissued shares returned to plan	—		—		—
1998 Directors Plan shares expired	(60,000	)	—		—
Additional shares reserved	1,700,859		—		—
BALANCE AT DECEMBER 31, 2012	13,467,582		3,939,315		$	6.08