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Agreement with Eli Lilly and Company - Deferred revenue included in balance sheets (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Deferred revenue |  |
Deferred revenue, beginning of period | $ 26,725 |
Up-front payment |  | $ 25,000
Attributed premium on the proceeds from Lilly's investment in the Company |  | 1,725
Research and development support billing | 1,500 |
Revenue from research and development arrangement recognized | (4,342) |
Total deferred revenue, end of period | 23,883 | 26,725
Less: Deferred revenue, current portion | (6,199) | (4,989)
Deferred revenue, non-current portion | $ 17,684 | $ 21,736

X
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X
- Definition Amount of increase (decrease) in deferred income from related party transactions attributable to premium on the proceeds from investment. + References No definition available. + Details
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X
- Definition Amount of increase (decrease) in deferred income from related party transactions attributable to collaboration revenue recognized. + References No definition available. + Details
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- Definition Amount of deferred income from related party transactions excluding obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current. + References No definition available. + Details
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- Definition Amount of deferred income from related party transactions excluding obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent. + References No definition available. + Details
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- Definition Amount of increase (decrease) in deferred income from related party transactions attributable to research and development support payment. + References No definition available. + Details
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X
- Definition Amount of increase (decrease) in deferred income from related party transactions attributable to upfront payment. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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