XML 16 R5.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Related Party Transaction [Line Items] |  |  |  |
Collaboration and licensing revenues | $ 28,164 | $ 27,481 | $ 61,229 | $ 51,554
Related Parties, Aggregated |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Collaboration and licensing revenues | $ 24,558 | $ 23,612 | $ 53,445 | $ 43,611

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revenue from contractual agreements with collaborators whereby the collaborators obtain exclusive access to the entity's proprietary technologies for use in the research, development and commercialization of products and/or treatments in a contractually specified field of use as well as revenue earned during the period relating to consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Includes revenue recognized from upfront payments received upon consummation of the agreement, reimbursements for costs incurred by the entity for research and development efforts, and milestone payments received upon achievement of specified development, regulatory and commercial activities as defined in the collaboration and licensing agreements. + References No definition available. + Details
Name: | xon_CollaborationAndLicensingRevenue
Namespace Prefix: | xon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=xon_RelatedPartiesAggregatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |