Consolidated Statements of Stockholders' Equity (Unaudited) (USD $) In Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Gain	Treasury Stock
Balance, value at Dec. 31, 2011	$ 297,568	$ 480	$ 1,087,033	$ (789,621)	$ 21	$ (345)
Balance, shares at Dec. 31, 2011		480,389
Stock-based compensation	4,905	0	4,905	0	0	0
Issuance of common stock to designees of Symphony Icon Holdings LLC, shares		13,238
Issuance of common stock to designees of Symphony Icon Holdings LLC, value	35,000	14	34,986	0	0	0
Issuance of common stock under Equity Incentive Plans, shares		1,247
Issuance of common stock under Equity Incentive Plans, value	1,055	1	1,054	0	0	0
Other	(146)	0	(146)	0	0	0
Repurchase of common stock	(285)	0	0	0	0	(285)
Net loss	(85,338)	0	0	(85,338)	0	0
Unrealized gain on investments	0
Balance, value at Sep. 30, 2012	252,759	495	1,127,832	(874,959)	21	(630)
Balance, shares at Sep. 30, 2012		494,874
Balance, value at Dec. 31, 2012	266,678	512	1,166,605	(899,832)	23	(630)
Balance, shares at Dec. 31, 2012		512,375
Stock-based compensation	5,728	0	5,728	0	0	0
Issuance of common stock to designees of Symphony Icon Holdings LLC, value	0
Issuance of common stock under Equity Incentive Plans, shares		1,900
Issuance of common stock under Equity Incentive Plans, value	874	2	872	0	0	0
Repurchase of common stock	(873)	0	0	0	0	(873)
Net loss	(86,712)	0	0	(86,712)	0	0
Unrealized gain on investments	15	0	0	0	15	0
Balance, value at Sep. 30, 2013	$ 185,710	$ 514	$ 1,173,205	$ (986,544)	$ 38	$ (1,503)
Balance, shares at Sep. 30, 2013		514,275