2. ACQUISITIONS GnuBIO, Inc. In April 2014, we acquired 100% of the issued and outstanding stock of GnuBIO, Inc. (GnuBIO). This acquisition was accounted for as a business combination as GnuBIO represents an integrated set of activities and assets capable of being conducted and managed for the purpose of providing a return and therefore constitutes a business in accordance with GAAP. The amount of acquisition-related costs was minimal as Bio-Rad primarily represented itself during the acquisition process. This business acquisition is included in our Clinical Diagnostics segment's results of operations from the acquisition date. We believe that GnuBIO's innovative DNA workflow is well-suited for the clinical diagnostics sequencing market and will leverage our leadership role in the area of droplet digital PCR. The final fair values of the net assets acquired from GnuBIO as of the acquisition date were determined to be $46.4 million of indefinite-lived intangible assets (specifically in-process research and development or "IPR&amp;D"), $13.5 million of goodwill and $9.5 million of net tangible liabilities. The goodwill recorded will not be deductible for income tax purposes. The fair value of the consideration as of the acquisition date was $50.4 million , which includes $39.7 million paid in cash at the closing date and $10.7 million in contingent consideration potentially payable to GnuBIO's shareholders. The contingent consideration was based on a probability-weighted income approach that could reach $70.0 million upon the achievement of all development/regulatory and sales milestones. The contingent consideration for the development/regulatory milestones was valued at $10.7 million , based on assumptions regarding the probability of achieving the milestones, with such amounts discounted to present value. The contingent consideration for the sales milestones was determined to be negligible, using the risk-neutral probability of being in the money based on a Black-Scholes framework. In connection with our project