SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition Narrative (Details) - USD ($) |
1 Months Ended | 3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|---|
May 31, 2018 |
Mar. 31, 2015 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Dec. 31, 2019 |
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| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||||||
| Revenue recognized | $ 142,000 | $ 1,183,000 | $ 1,795,000 | $ 7,248,000 | |||
| Deferred revenue | 0 | $ 0 | $ 1,795,000 | ||||
| Collaborative Arrangement | |||||||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||||||
| Non-refundable upfront fees | $ 15,600,000 | $ 11,000,000.0 | |||||
| Development milestone payments | 10,000,000.0 | ||||||
| Commercialization milestone payments | $ 30,000,000.0 | ||||||
| Basis point reduction | 1.50% | ||||||
| Revenue recognized | 100,000 | $ 1,200,000 | $ 1,800,000 | $ 7,200,000 | |||
| Deferred revenue | $ 0 | 0 | $ 1,800,000 | ||||
| Milestone payment received | $ 10,000,000.0 | ||||||
| X | ||||||||||
- Definition Collaborative Arrangement, Commercialization Milestone Payments No definition available.
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- Definition Collaborative Arrangement, Development Milestone Payments No definition available.
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- Definition Collaborative Arrangement, Non-refundable Upfront Fees No definition available.
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- Definition Collaborative Arrangement, Receipt Of Development Milestone Payments No definition available.
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- Definition Revenue From Contract With Customer, Contract Modification, Basis Point Reduction No definition available.
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- 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. No definition available.
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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
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- Details
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