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Business Combination | 9 Months Ended
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Sep. 30, 2019
Business Combinations [Abstract] |
Business Combination | Business Combination On July 23, 2019, we acquired privately-held Ab Initio Biotherapeutics, Inc., an antigen-discovery company located in South San Francisco, California. The transaction was accounted for as a business combination. We applied the acquisition method of accounting. Accordingly, we recorded the tangible and intangible assets acquired and liabilities assumed at their estimated fair values as of the acquisition date. We did not incur any material acquisition related costs. The initial purchase price of $12.0 million included $11.86 million cash consideration paid upon acquisition, and $0.15 million cash holdback for potential indemnification claims. As the acquisition is not considered significant, pro forma information has not been provided. The results of Ab Initio have been included in our results of operations since the date of acquisition. The preliminary allocation of the purchase price consisted of (1) $0.03 million of fair value of tangible assets acquired, (2) $(0.06) million of liabilities assumed, (3) $7.4 million of acquired technologies, (4) $(1.0) million of deferred tax liability in connection with the acquired intangibles, and (5) $5.7 million of goodwill, none of which is deductible for tax purposes. The fair value of the core technology was based on the discounted cash flow method that estimated the present value of the potential royalties, milestones, and collaboration revenue streams derived from the licensing of the related technologies. These projected cash flows were discounted to present value using a discount rate of 12%. The fair value of the core technology is being amortized on a straight-line basis over the weighted average estimated useful life of the approximately 20 years. The preliminary purchase price allocation falls within the measurement period and therefore we may adjust these provisional amounts to reflect new information obtained about facts and circumstances that exists as of the acquisition date.

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- Definition The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -URI http://asc.fasb.org/topic&trid=2303972 + Details
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