Licenses Acquired - Summary Of Research and Development Arrangement Contract (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
|
| Research and Development Arrangement, Contract to Perform for Others [Line Items] | ||
| Research and Development Total | $ 450 | $ 97 |
| Cellvation [Member] | ||
| Research and Development Arrangement, Contract to Perform for Others [Line Items] | ||
| Research and Development Total | 0 | 1 |
| Helocyte [Member] | ||
| Research and Development Arrangement, Contract to Perform for Others [Line Items] | ||
| Research and Development Total | 0 | 21 |
| Mustang [Member] | ||
| Research and Development Arrangement, Contract to Perform for Others [Line Items] | ||
| Research and Development Total | $ 450 | $ 75 |
| 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. No definition available.
|
| X | ||||||||||
- Definition The amount of purchased research and development assets that are acquired in a business combination have no alternative future use and are therefore written off in the period of acquisition. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|