Income Taxes (Details) (USD $) In Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2011	Jun. 13, 2011
Schedule of Collaborative Arrangements
Provision for income taxes (Alios)	$ (24,448)	$ (24,448)
Alios BioPharma, Inc
Schedule of Collaborative Arrangements
Provision for income taxes (Alios)	24,448	24,448
Up-front payment to Alios			$ 60,000

The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 45
-Subparagraph a, b

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration