Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Revenues	$ 90,722	$ 151,178	$ 219,463
Collaboration and licensing agreements
Related Party Transaction [Line Items]
Revenues	14,059	69,540	134,624
Continuing Operations
Related Party Transaction [Line Items]
Revenues	90,722	151,178	219,463
Continuing Operations \| Collaboration and licensing agreements
Related Party Transaction [Line Items]
Revenues	14,059	69,540	134,624
Continuing Operations \| Collaboration and licensing agreements \| Related Parties, Aggregated
Related Party Transaction [Line Items]
Revenues	$ 11,832	$ 55,573	$ 122,485

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration