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v3.19.1

License, Clinical Trial and Sponsored Research Agreements (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Research and development - licenses acquired | $ 3,360 | $ 12,433
Sponsored Research And Clinical Trial Agreements [Member] |  |
Research and development - licenses acquired | 5,719 | 5,557
IL13Ra2 [Member] |  |
Research and development - licenses acquired | 0 | 500
IL13Ra2 [Member] | Sponsored Research And Clinical Trial Agreements [Member] |  |
Research and development - licenses acquired | 1,056 | 1,578
IV/ICV [Member] |  |
Research and development - licenses acquired | 0 | 125
PSCA [Member] |  |
Research and development - licenses acquired | 0 | 300
HER2 [Member] |  |
Research and development - licenses acquired | 200 | 600
CS1 [Member] |  |
Research and development - licenses acquired | 0 | 600
CRISPR [Member] [Member] |  |
Research and development - licenses acquired | 0 | 250
CRISPR [Member] [Member] | Sponsored Research And Clinical Trial Agreements [Member] |  |
Research and development - licenses acquired | 69 | 138
Fortress PIK Dividend [Member] |  |
Research and development - licenses acquired | 2,085 | 9,558
UCLA [Member] |  |
Research and development - licenses acquired | 0 | 200
Fred Hutch CD20 [Member] |  |
Research and development - licenses acquired | 0 | 300
Fred Hutch CD20 [Member] | Sponsored Research And Clinical Trial Agreements [Member] |  |
Research and development - licenses acquired | 1,301 | 614
St Jude XSCID [Member] |  |
Research and development - licenses acquired | 1,000 | 0
Manufacturing [Member] |  |
Research and development - licenses acquired | 75 | 0
Manufacturing [Member] | Sponsored Research And Clinical Trial Agreements [Member] |  |
Research and development - licenses acquired | 458 | 0
City Of Hope [Member] | Sponsored Research And Clinical Trial Agreements [Member] |  |
Research and development - licenses acquired | 2,000 | 2,000
CD 123 [Member] | Sponsored Research And Clinical Trial Agreements [Member] |  |
Research and development - licenses acquired | $ 835 | $ 1,227

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