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Kolltan Acquisition - Allocations of Assets and Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Nov. 29, 2016
Kolltan Acquisition |  |  |
Estimated development costs included in expected future net cash flows | $ 132,000 |  |
Goodwill expected to be deductible for income tax purposes |  |  | $ 0
Summary of fair values of assets acquired and liabilities assumed |  |  |
Goodwill | $ 90,976 | $ 90,976 |
Kolltan |  |  |
Summary of fair values of assets acquired and liabilities assumed |  |  |
Cash and cash equivalents |  |  | 8,160
Other current and long-term assets |  |  | 799
Property and equipment, net |  |  | 2,072
In-process research and development (IPR&D) |  |  | 61,690
Goodwill |  |  | 82,011
Deferred tax liabilities, net |  |  | (23,393)
Other assumed liabilities |  |  | (9,974)
Total |  |  | 121,365
Kolltan | Anti-KIT Program |  |  |
Summary of fair values of assets acquired and liabilities assumed |  |  |
In-process research and development (IPR&D) |  |  | 40,000
Kolltan | CDX-3379 |  |  |
Summary of fair values of assets acquired and liabilities assumed |  |  |
In-process research and development (IPR&D) |  |  | 3,500
Kolltan | TAM programs |  |  |
Summary of fair values of assets acquired and liabilities assumed |  |  |
In-process research and development (IPR&D) |  |  | $ 18,000

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