Earnings (Loss) Per Share (Potential Shares Of Common Stock) (Details) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Earnings (Loss) Per Share [Abstract]
Options to purchase common stock	16,674	13,561	16,674	13,569
Common stock issuable under convertible debt	17,372	0	17,372	0
Unvested restricted stock units	1,033	251	1,001	251
Potentially issuable common stock for ESPP purchases	326	0	312	0
Common stock issued to the Nonqualified Deferred Compensation Plan	173	115	173	115
Total	35,578	13,927	35,532	13,935