CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Total	Acquisition of Omneon [Member]	Common Stock [Member]	Common Stock [Member] Acquisition of Omneon [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Acquisition of Omneon [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2009	$ 407,473		$ 96		$ 2,279,945		$ (1,872,533)	$ (35)
Balance, Shares at Dec. 31, 2009			96,110,000
Net income (loss)	(4,335)						(4,335)
Unrealized gain (loss) on investments, net of tax	(376)							(376)
Translation adjustments	(301)							(301)
Stock-based compensation	15,549				15,549
Issuance of Common Stock for acquisition of Omneon		98,063		14		98,049
Issuance of Common Stock for acquisition of Omneon, Shares				14,150,000
Issuance of Common Stock under option, stock award and purchase plans	3,859		2		3,857
Issuance of Common Stock under option, stock award and purchase plans, Shares			2,100,000
Reduction in excess tax benefits from stock-based compensation	271				271
Balance at Dec. 31, 2010	520,203		112		2,397,671		(1,876,868)	(712)
Balance, Shares at Dec. 31, 2010			112,360,000
Net income (loss)	8,779						8,779
Unrealized gain (loss) on investments, net of tax	10							10
Translation adjustments	(173)							(173)
Stock-based compensation	20,841				20,841
Issuance of Common Stock under option, stock award and purchase plans	12,701		4		12,697
Issuance of Common Stock under option, stock award and purchase plans, Shares			3,897,000
Reduction in excess tax benefits from stock-based compensation	1,955				1,955
Balance at Dec. 31, 2011	564,316		116		2,433,164		(1,868,089)	(875)
Balance, Shares at Dec. 31, 2011			116,257,000
Net income (loss)	(10,937)						(10,937)
Unrealized gain (loss) on investments, net of tax	15							15
Translation adjustments	395							395
Stock-based compensation	18,926				18,926
Issuance of Common Stock under option, stock award and purchase plans	4,536		3		4,533
Issuance of Common Stock under option, stock award and purchase plans, Shares			3,045,000
Repurchase of Common Stock	(22,639)		(5)		(22,634)
Repurchase of Common Stock, Shares			(5,109,000)
Reduction in excess tax benefits from stock-based compensation	(1,199)				(1,199)
Balance at Dec. 31, 2012	$ 553,413		$ 114		$ 2,432,790		$ (1,879,026)	$ (465)
Balance, Shares at Dec. 31, 2012			114,193,000