Consolidated Statement Of Shareholders' Equity (USD $) In Thousands, except Share data	Class A Common Stock [Member] Shares - Hedge [Member] USD ($)	Class A Common Stock [Member] Shares - Warrant [Member]	Class A Common Stock [Member] USD ($)	Additional Paid-In Capital [Member] Shares - Hedge [Member] USD ($)	Additional Paid-In Capital [Member] Shares - Warrant [Member] USD ($)	Additional Paid-In Capital [Member] USD ($)	Accumulated Deficit [Member] USD ($)	Accumulated Other Comprehensive (Loss) Income [Member] USD ($)	Shares - Hedge [Member] USD ($)	Shares - Warrant [Member] USD ($)	Total USD ($)
BALANCE, Amount at Dec. 31, 2013			$ 1,284			$ 2,907,446	$ (2,518,085)	$ (33,679)			$ 356,966
BALANCE, Shares at Dec. 31, 2013			128,432,000
Net loss							(24,685)				(24,685)
Common stock issued in connection with stock purchase/option plans, Amount			7			6,287					6,294
Common stock issued in connection with stock purchase/option plans, Shares			657,000
Non-cash compensation						17,480					17,480
Settlement of convertible notes, Amount			30			9,591					9,621
Settlement of convertible notes, Shares			3,008,000
Settlement of convertible note hedges and common stock warrants, Amount	(30)			37	(602,834)				7	(602,834)
Settlement of convertible note hedges and common stock warrants, Shares	(3,002,000)	1,000
Foreign currency translation adjustments								(60,466)			(60,466)
BALANCE, Amount at Sep. 30, 2014			$ 1,291			$ 2,338,007	$ (2,542,770)	$ (94,145)			$ (297,617)
BALANCE, Shares at Sep. 30, 2014			129,096,000