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Commitments and Contigencies - Pfizer License Agreement (Details) - USD ($) $ in Thousands | Jun. 30, 2016 | Feb. 29, 2016 | Dec. 31, 2015
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Commitments and Contingencies |  |  |
No liabilities were recorded related to the license agreement | $ 14,429 |  | $ 8,917
Pfizer, Inc. | License Agreement |  |  |
Commitments and Contingencies |  |  |
No liabilities were recorded related to the license agreement |  | $ 0 |

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- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19-26) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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