Note 1—Description of Business

        Bruker Corporation, together with its consolidated subsidiaries ("Bruker" or the "Company"), is a designer and manufacturer of high-performance scientific instruments and analytical and diagnostic solutions that enable our customers to explore life and materials at microscopic, molecular and cellular levels. Many of our products are used to detect, measure and visualize structural characteristics of chemical, biological and industrial material samples. Our products address the rapidly evolving needs of a diverse array of customers in life science research, pharmaceuticals, biotechnology, applied markets, cell biology, clinical research, microbiology, in-vitro diagnostics, nanotechnology and materials science research.

        The Company has two reportable segments, Bruker Scientific Instruments (BSI), which represents approximately 92% of the Company's revenues during the year ended December 31, 2015, and Bruker Energy & Supercon Technologies (BEST), which represents the remainder of the business. Within BSI, the Company is organized into three operating segments: the Bruker BioSpin Group, the Bruker CALID Group and the Bruker Nano Group. For financial reporting purposes, the Bruker BioSpin, Bruker CALID and Bruker Nano operating segments are aggregated into the BSI reportable segment because each has similar economic characteristics, production processes, service offerings, types and classes of customers, methods of distribution and regulatory environments.

        Bruker BioSpin— Bruker BioSpin designs, manufactures and distributes enabling life science tools based on magnetic resonance and preclinical imaging technologies. Bruker BioSpin sells various systems utilizing magnetic resonance technology, including magnetic resonance imaging (MRI) systems, nuclear magnetic resonance systems (NMR) and electron paramagnetic resonance systems (EPR), as well as OEM MRI magnets sold to medical device manufacturers. Bruker BioSpin also sells single and multiple modality systems using MRI, position emission tomography (PET), single photon emission tomography (SPECT), computed tomography (CT), magnetic particle imaging (MPI) and optical imaging (fluorescence and bioluminescence) technologies to preclinical markets.

        Bruker CALID (Chemicals, Applied Markets, Life Science, In-Vitro Diagnostics, Detection)— Bruker CALID designs, manufactures and distributes life science mass spectrometry instruments that can be integrated and used along with other sample preparation or chromatography instruments, as well as Chemical, Biological, Radiological, Nuclear and Explosive (CBRNE) detection products. Bruker CALID also designs, manufactures and distributes instruments based on Raman molecular spectroscopy technologies. Bruker CALID's mass spectrometry units are typically used in applications of expression proteomics, clinical proteomics, metabolic and peptide biomarker profiling, drug discovery and development, molecular diagnostics research, molecular and systems biology, basic molecular medicine research and clinical microbiology.

        Bruker Nano— Bruker Nano designs, manufactures and distributes spectroscopy and microscopy instruments for the understanding of composition and structure in material science and life science samples. The instruments are based on advanced technologies in X-ray fluorescence spectroscopy (XRF), X-ray diffraction (XRD), X-ray micro computed tomography (CT), atomic force microscopy (AFM), stylus and optical metrology (SOM) and fluorescence microscopy (FM), and also include analytical tools for electron microscopes, handheld, portable and mobile X-ray fluorescence and spark optical emission spectroscopy systems.

        The Company's BEST reportable segment develops and manufactures superconducting and non-superconducting materials and devices for use in renewable energy, energy infrastructure, healthcare and "big science" research. The segment focuses on metallic low temperature superconductors for use in magnetic resonance imaging, nuclear magnetic resonance, fusion energy research and other applications, as well as ceramic high temperature superconductors primarily for energy grid and magnet applications.

Note 2—Summary of Significant Accounting Policies

        The accompanying consolidated financial statements reflect the application of certain significant accounting policies as described below and elsewhere in the notes to the consolidated financial statements.

Principles of Consolidation

        The accompanying consolidated financial statements include the accounts of the Company and all majority and wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated.

Noncontrolling Interests

        Noncontrolling interests represents the minority shareholders' proportionate share of the Company's majority-owned subsidiaries. The portion of net income or net loss attributable to non-controlling interests is presented as net income attributable to noncontrolling interests in consolidated subsidiaries in the consolidated statements of income and comprehensive income (loss), and the portion of other comprehensive income (loss) of these subsidiaries is presented in the consolidated statements of shareholders' equity.

Subsequent Events

        The Company has evaluated all subsequent events and determined that there are no material recognized or unrecognized subsequent events, or any subsequent events required to be mentioned in the footnotes to the consolidated financial statements, other than the item disclosed in Note 23—Subsequent Event.

Cash and Cash Equivalents

        Cash and cash equivalents primarily include cash on hand, money market funds and time deposits with original maturities of three months or less at the date of acquisition. Time deposits represent amounts on deposit in banks and temporarily invested in instruments with maturities of three months or less at the time of purchase. Certain of these investments represent deposits which are not insured by the FDIC or any other government agency. Cash equivalents are carried at cost, which approximates fair value.

Short-term Investments

        Short-term investments represent time and call deposits with original maturities of greater than three months at the date of acquisition. Short-term investments are classified as available-for-sale and are reported at fair value, with unrealized gains (losses) excluded from earnings and reported, net of tax, in accumulated other comprehensive income (loss) within the accompanying consolidated balance sheets. There were no unrealized gains (losses) recorded as of December 31, 2015 and 2014, as cost approximates fair value.

Restricted Cash

        The Company has certain subsidiaries which are required by local governance to maintain restricted cash balances to cover future employee benefit payments. Restricted cash balances are classified as non-current unless, under the terms of the applicable agreements, the funds will be released from restrictions within one year from the balance sheet date. The current and non-current portion of restricted cash is recorded within other current assets and other long-term assets, respectively, in the accompanying consolidated balance sheets.

Derivative Financial Instruments and Hedging Activities

        All derivatives, whether designated in a hedging relationship or not, are recorded on the consolidated balance sheets at fair value. The accounting for changes in fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and further, on the type of hedging relationship. For those derivative instruments that are designated and qualify as hedging instruments, the Company must designate the hedging instrument, based on the exposure being hedged, as a fair value hedge, cash flow hedge or a hedge of a net investment in a foreign operation.

        A fair value hedge is a derivative instrument designated for the purpose of hedging the exposure of changes in fair value of an asset or a liability resulting from a particular risk. If the derivative is designated as a fair value hedge, the changes in the fair value of the derivative and of the hedged item attributable to the hedged risk are both recognized in the same caption in the consolidated statements of income and comprehensive income (loss).

Fair Value of Financial Instruments

        The Company applies the following hierarchy to determine the fair value of financial instruments, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement. The levels in the hierarchy are defined as follows:

        The valuation techniques that may be used by the Company to determine the fair value of Level 2 and Level 3 financial instruments are the market approach, the income approach and the cost approach. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The income approach uses valuation techniques to convert future amounts to a single present value based on current market expectations about those future amounts, including present value techniques, option-pricing models and the excess earnings method. The cost approach is based on the amount that would be required to replace the service capacity of an asset (replacement cost).

        The Company's financial instruments consist primarily of cash equivalents, short-term investments, restricted cash, derivative instruments consisting of forward foreign exchange contracts, commodity contracts, derivatives embedded in certain purchase and sale contracts, accounts receivable, short-term borrowings, accounts payable, contingent consideration and long-term debt. The carrying amounts of the Company's cash equivalents, short-term investments and restricted cash, accounts receivable, short-term borrowings and accounts payable approximate fair value caused by their short-term nature. Derivative assets and liabilities are measured at fair value on a recurring basis. The Company's long-term debt consists principally of a private placement arrangement entered into in 2012 with various fixed interest rates based on the maturity date.

        The Company has evaluated the estimated fair value of financial instruments using available market information and management's estimates. The use of different market assumptions and/or estimation methodologies could have a significant effect on the estimated fair value amounts.

Concentration of Credit Risk

        Financial instruments which subject the Company to credit risk consist of cash, cash equivalents, short-term investments, derivative instruments, accounts receivables and restricted cash. The risk with respect to cash, cash equivalents and short-term investments is minimized by the Company's policy of investing in short-term financial instruments issued by highly-rated financial institutions. The risk with respect to derivative instruments is minimized by the Company's policy of entering into arrangements with highly-rated financial institutions. The risk with respect to accounts receivables is minimized by the creditworthiness and diversity of the Company's customers. The Company performs periodic credit evaluations of its customers' financial condition and generally requires an advanced deposit for a portion of the purchase price. Credit losses have been within management's expectations and the allowance for doubtful accounts totaled $9.1 million and $10.1 million as of December 31, 2015 and 2014, respectively. As of December 31, 2015 and 2014, no single customer represented 10% or more of the Company's accounts receivable. For the years ended December 31, 2015, 2014 and 2013, no single customer represented 10% or more of the Company's total revenue.

Inventories

        Components of inventory include raw materials, work-in-process, demonstration units and finished goods. Demonstration units include systems which are located in the Company's demonstration laboratories or installed at the sites of potential customers and are considered available for sale. Finished goods include in-transit systems that have been shipped to the Company's customers, but not yet installed and accepted by the customer. All inventories are stated at the lower of cost or market. Cost is determined principally by the first-in, first-out method for a majority of subsidiaries and by average-cost for certain other subsidiaries. The Company reduces the carrying value of its inventories for differences between cost and estimated net realizable value, taking into consideration usage in the preceding twelve months, expected demand, technological obsolescence and other information including the physical condition of demonstration inventories. The Company records a charge to cost of revenue for the amount required to reduce the carrying value of inventory to net realizable value. Costs associated with the procurement of inventories, such as inbound freight charges and purchasing and receiving costs, are capitalized as part of inventory and are also included in the cost of revenue line item within the consolidated statements of income and comprehensive income (loss).

Property, Plant and Equipment

        Property, plant and equipment are stated at cost less accumulated depreciation and amortization. Major improvements are capitalized while expenditures for maintenance, repairs and minor improvements are charged to expense as incurred. When assets are retired or otherwise disposed of, the assets and related accumulated depreciation and amortization are eliminated from the accounts and any resulting gain or loss is reflected in the consolidated statements of income and comprehensive income (loss). Depreciation and amortization are calculated on a straight-line basis over the estimated useful lives of the assets as follows:

                                                                                                                                                                                    

Goodwill and Intangible Assets

        Goodwill and indefinite-lived intangible assets are not amortized, but are evaluated for impairment on an annual basis, or on an interim basis when events or changes in circumstances indicate that the carrying value may not be recoverable. In assessing the recoverability of goodwill and indefinite-lived intangible assets, the Company must make assumptions regarding the estimated future cash flows, and other factors, to determine the fair value of these assets. If these estimates or their related assumptions change in the future, the Company may be required to record impairment charges against these assets in the reporting period in which the impairment is determined.

        The Company tests goodwill for impairment at the reporting unit level, which is the operating segment or one level below an operating segment. The Company has the option of performing a qualitative assessment to determine whether further impairment testing is necessary before performing the two-step quantitative assessment. If as a result of the qualitative assessment, it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, a quantitative impairment test will be required. Otherwise, no further testing will be required. If a quantitative impairment test is performed, the first step involves comparing the fair values of the applicable reporting units with their aggregate carrying values, including goodwill. The Company generally determines fair value of reporting units using a weighting of both the market and the income methodologies. Estimating the fair value of the reporting units requires significant judgment by management. If the carrying amount of a reporting unit exceeds the fair value of the reporting unit, the Company performs the second step of the goodwill impairment test to measure the amount of the impairment. In the second step of the goodwill impairment test the Company compares the implied fair value of the reporting unit's goodwill with the carrying value of that goodwill.

        In process research and development, or IPR&D, acquired as part of business combinations under the acquisition method represents ongoing development work associated with enhancements to existing products, as well as the development of next generation products. IPR&D is initially capitalized at fair value as an intangible asset with an indefinite life and assessed for impairment on an annual basis, or when indicators of impairment are identified. When the IPR&D project is complete, it is reclassified as a finite-lived intangible asset and is amortized over its estimated useful life, typically seven to ten years. If an IPR&D project is abandoned before completion or is otherwise determined to be impaired, the value of the asset or the amount of the impairment is charged to the consolidated statements of income and comprehensive income (loss) in the period the project is abandoned or impaired.

        Intangible assets with a finite useful life are amortized on a straight-line basis over their estimated useful lives as follows:

                                                                                                                                                                                    

Impairment of Long-Lived Assets

        Impairment losses are recorded on long-lived assets used in operations when indicators of impairment are present and the quoted market price, if available, or the estimated fair value of those assets are less than the assets' carrying value. Impairment losses are charged to the consolidated statements of income and comprehensive income (loss) for the difference between the fair value and carrying value of the asset.

Warranty Costs and Deferred Revenue

        The Company typically provides a one year parts and labor warranty with the purchase of equipment. The anticipated cost for this warranty is accrued upon recognition of the sale and is included as a current liability on the accompanying consolidated balance sheets. The Company's warranty reserve reflects estimated material and labor costs for potential product issues for which the Company expects to incur an obligation. The Company's estimates of anticipated rates of warranty claims and costs are primarily based on historical information. The Company assesses the adequacy of the warranty reserve on a quarterly basis and adjusts the amount as necessary. If the historical data used to calculate the adequacy of the warranty reserve is not indicative of future requirements, additional or reduced warranty reserves may be required.

        The Company also offers to its customers extended warranty and service agreements extending beyond the initial warranty for a fee. These fees are recorded as deferred revenue and recognized ratably into income over the life of the extended warranty contract or service agreement.

Income Taxes

        Deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial statement carrying amounts and the income tax basis of assets and liabilities. A valuation allowance is applied against any net deferred tax asset if, based on the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

        The Company records liabilities related to uncertain tax positions in accordance with the guidance that clarifies the accounting for uncertainty in income taxes recognized in a Company's financial statements. This guidance prescribes a minimum recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return.

Customer Advances

        The Company typically requires an advance deposit under the terms and conditions of contracts with customers. These deposits are recorded as a liability until revenue is recognized on the specific contract in accordance with the Company's revenue recognition policy.

Revenue Recognition

        The Company recognizes revenue from system sales when persuasive evidence of an arrangement exists, the price is fixed or determinable, title and risk of loss has been transferred to the customer and collectability of the resulting receivable is reasonably assured. Title and risk of loss transfers based upon customer acceptance for a system that has been delivered and installed at a customer facility or, for certain systems, upon shipping terms. For systems that include customer-specific acceptance criteria, the Company is required to assess when it can demonstrate the acceptance criteria has been met, which generally is upon customer acceptance and evidence of installation.

        When products are sold through an independent distributor or a strategic distribution partner who assumes responsibility for installation, the Company recognizes the system sale when the product has been shipped and title and risk of loss have been transferred to the distributor. The Company's distributors do not have price protection rights or rights of return; however, the Company's products are typically warranted to be free from defect for a period of one year. Revenue is deferred until cash is received when collectability is not reasonably assured or when the price is not fixed or determinable.

        For transactions that include multiple elements, arrangement consideration is allocated to each element using the fair value hierarchy as required by ASU No. 2009-13. The Company limits the amount of revenue recognized for delivered elements to the amount that is not contingent on the future delivery of products or services, future performance obligations, or subject to customer-specific return or refund privileges.

        The Company determines the fair value of its products and services based upon vendor specific objective evidence ("VSOE"). The Company determines VSOE based on its normal selling pricing and discounting practices for the specific product or service when sold on a stand-alone basis. In determining VSOE, the Company's policy requires a substantial majority of selling prices for a product or service to be within a reasonably narrow range. The Company also considers the class of customer, method of distribution and the geographies into which products and services are being sold when determining VSOE.

        If VSOE cannot be established, the Company attempts to establish the selling price based on third-party evidence ("TPE"). VSOE cannot be established in instances where a product or service has not been sold separately, stand-alone sales are too infrequent or product pricing is not within a sufficiently narrow range. TPE is determined based on competitor prices for similar deliverables when sold separately.

        When the Company cannot determine VSOE or TPE, it uses estimated selling price ("ESP") in its allocation of arrangement consideration. The objective of ESP is to determine the price at which the Company would typically transact a stand-alone sale of the product or service. ESP is determined by considering a number of factors including the Company's pricing policies, internal costs and gross profit objectives, method of distribution, market research and information, recent technological trends, competitive landscape and geographies. The Company analyzes the selling prices used in its allocation of arrangement consideration, at a minimum, on an annual basis. Selling prices will be analyzed more frequently if a significant change in the Company's business or other factors necessitate more frequent analysis or if the Company experiences significant variances in its selling prices.

        Revenue from accessories and parts is recognized upon shipment. Service revenue is recognized as the services are performed or ratably over the contractual obligation and includes maintenance contracts, extended warranty, training, application support and on-demand services.

        The Company also has contracts for which it applies the percentage-of-completion model and completed contract model of revenue recognition. Application of the percentage-of-completion method requires the Company to make reasonable estimates of the extent of progress toward completion of the contract and the total costs the Company will incur under the contract and losses are recorded immediately when we estimate that contracts will ultimately result in a loss. Changes in the estimates could affect the timing of revenue recognition.

        Other revenues are primarily comprised of licensing arrangements, which is recognized ratably over the term of the related contracts.

Shipping and Handling Costs

        The Company includes costs incurred in connection with shipping and handling of products within selling, general and administrative expenses in the accompanying consolidated statements of income and comprehensive income (loss). Shipping and handling costs were $20.6 million, $26.2 million and $26.7 million in the years ended December 31, 2015, 2014 and 2013, respectively. Amounts billed to customers in connection with these costs are included in total revenues.

Research and Development

        Research and development costs are expensed as incurred and include salaries, wages and other personnel related costs, material costs and depreciation, consulting costs and facility costs.

Software Costs

        Purchased software is capitalized at cost and is amortized over the estimated useful life, generally three years. Software developed for use in the Company's products is expensed as incurred until technological feasibility is reasonably assured and is classified as research and development expense. Subsequent to the achievement of technological feasibility, amounts are capitalizable, however, to date such amounts have not been material.

Advertising

        The Company expenses advertising costs as incurred. Advertising expenses were $12.9 million, $10.7 million and $9.6 million during the years ended December 31, 2015, 2014 and 2013, respectively.

Stock-Based Compensation

        The Company recognizes stock-based compensation expense in the consolidated statements of income and comprehensive income (loss) based on the fair value of the share-based award at the grant date. The Company's primary types of share-based compensation are stock options and restricted stock units. The Company recorded stock-based compensation expense for the years ended December 31, 2015, 2014 and 2013, as follows (in millions):

                                                                                                                                                                                    

        Compensation expense is amortized on a straight-line basis over the underlying vesting terms of the share-based award. Stock options to purchase the Company's common stock are periodically awarded to executive officers and other employees of the Company, and members of the Company's Board of Directors, subject to a vesting period of three to five years. The fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model. Assumptions regarding volatility, expected term, dividend yield and risk-free interest rates are required for the Black-Scholes model and are presented in the table below:

                                                                                                                                                                                    

        The risk-free interest rate is based on the yield on zero-coupon U.S. Treasury securities for a period that is commensurate with the expected life assumption. Expected life is determined through the simplified method as defined in the Securities and Exchange Commission Staff Accounting Bulletin No. 110. The Company believes that this is the best estimate of the expected term of a new option. Expected volatility is based on a number of factors, but the Company currently believes that the exclusive use of its historical volatility results in the best estimate of the grant-date fair value of employee stock options because it reflects the market's current expectations of future volatility. The expected dividend yield was not considered in the option pricing formula since the Company had not historically paid dividends and had no plan to do so as of December 31, 2015. In addition, the Company utilizes an estimated forfeiture rate when calculating the stock-based compensation expense for the period. The Company has applied estimated forfeiture rates derived from an analysis of historical data of 5.8%, 5.1% and 7.0% for the years ended December 31, 2015, 2014 and 2013, respectively, in determining the expense recorded in the accompanying consolidated statements of income and comprehensive income (loss).

Earnings Per Share

        Net income per common share attributable to Bruker Corporation shareholders is calculated by dividing net income attributable to Bruker Corporation by the weighted-average shares outstanding during the period. The diluted net income per share computation includes the effect of shares which would be issuable upon the exercise of outstanding stock options and the vesting of restricted stock, reduced by the number of shares which are assumed to be purchased by the Company under the treasury stock method.

        The following table sets forth the computation of basic and diluted weighted average shares outstanding for the years ended December 31, (in millions, except per share data):

                                                                                                                                                                                    

        Stock options to purchase approximately 1.3 million shares, 0.1 million shares and 0.4 million shares were excluded from the computation of diluted earnings per share for the years ended December 31, 2015, 2014 and 2013, respectively, because their effect would have been anti-dilutive.

        In May 2015, the Company's Board of Directors approved a share repurchase program (the "Anti-Dilutive Repurchase Program") under which the Company may repurchase the Company's common stock in amounts intended to approximately offset, on an annual basis, the dilutive effect of shares that have been, or may be, issued pursuant to option or restricted stock awards under the Company's 2010 Incentive Compensation Plan. A total of 1,245,000 shares were repurchased at an aggregate cost of $24.9 million under the Anti-Dilutive Repurchase Program.

        In November 2015, the Company's Board of Directors suspended the Anti-Dilutive Repurchase Program until January 1, 2017 and approved an additional share repurchase program (the "Repurchase Program") under which repurchases of common stock up to $225 million may occur from time to time, in amounts, at prices, and at such times as the Company deems appropriate, subject to market conditions, legal requirements and other considerations. A total of 2,837,042 shares were repurchased at an aggregate cost of $65.0 million as of December 31, 2015 under the Repurchase Program. The Repurchase Program will continue in 2016 and the Company intends to fund any additional repurchases from cash on hand, future cash flows from operations and available borrowings under the revolving credit facility.

        The repurchased shares are reflected within Treasury stock in the accompanying consolidated balance sheet at December 31, 2015.

Employee Benefit Plans

        The Company recognizes the over-funded or under-funded status of defined benefit pension and other postretirement defined benefit plans as an asset or liability, respectively, in its consolidated balance sheets and recognizes changes in the funded status in the year in which the changes occur through other comprehensive income (loss).

Other Comprehensive Income (Loss)

        Other comprehensive income (loss) refers to revenues, expenses, gains and losses that are excluded from net income as these amounts are recorded directly as an adjustment to shareholders' equity, net of tax. The Company's other comprehensive income (loss) was composed of foreign currency translation adjustments and pension liability adjustments.

Foreign Currency Translation

        Assets and liabilities of the Company's foreign subsidiaries, where the functional currency is the local currency, are translated into U.S. dollars using year-end exchange rates, or historical rates, as appropriate. Revenues and expenses of foreign subsidiaries are translated at the average exchange rates in effect during the year. Adjustments resulting from financial statement translations are included as a separate component of shareholders' equity. Gains and losses resulting from translation of foreign currency monetary transactions are reported in interest and other income (expense), net in the consolidated statements of income and comprehensive income (loss) for all periods presented. The Company has certain intercompany foreign currency transactions that are deemed to be of a long-term investment nature. Exchange adjustments related to those transactions are made directly to a separate component of shareholders' equity.

Risk and Uncertainties

        The Company is subject to risks common to its industry including, but not limited to, global economic conditions, rapid technological change, government and academic funding levels, changes in commodity prices, spending patterns from its customers, protection of its intellectual property, availability of key raw materials and components, compliance with existing and future regulation by government agencies and fluctuations in foreign currency exchange rates.

Contingencies

        The Company is subject to proceedings, lawsuits and other claims related to patents, product and other matters. The Company assesses the likelihood of any adverse judgments or outcomes to these matters as well as potential ranges of probable losses. A determination of the amount of reserves required, if any, for these contingencies is made after analysis of each individual issue. The required reserves may change in the future because of new developments in each situation or changes in settlement strategy in assessing these matters.

Use of Estimates

        The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period.

        Significant estimates and judgments made by management in preparing these financial statements include revenue recognition, allowances for doubtful accounts, write-downs for excess and obsolete inventory, estimated fair values used to record impairment charges related to intangible assets, goodwill, and other long-lived assets, amortization periods, expected future cash flows used to evaluate the recoverability of long-lived assets, stock-based compensation expense, warranty allowances, restructuring and other related charges, contingent liabilities and the recoverability of the Company's net deferred tax assets.

        Although the Company regularly reassesses the assumptions underlying these estimates, actual results could differ materially from these estimates. Changes in estimates are recorded in the period in which they become known. The Company bases its estimates on historical experience and various other assumptions that it believes to be reasonable under the circumstances. Actual results may differ from management's estimates if these results differ from historical experience or other assumptions prove not to be substantially accurate, even if such assumptions are reasonable when made.

Note 3—Acquisitions

        In October 2015, the Company completed the acquisition of Jordan Valley Semiconductors, Ltd. ("Jordan Valley"), a company headquartered in Israel that provides X-ray metrology and defect-detection equipment for semiconductor process control. The acquisition of Jordan Valley was accounted for under the acquisition method. The components and fair value allocation of the consideration transferred in connection with the acquisition of Jordan Valley were as follows (in millions):

                                                                                                                                                                                    

        The fair value allocation included contingent consideration in the amount of $4.1 million, which represented the estimated fair value of future payments to the former shareholders of Jordan Valley based on achieving annual revenue and gross margin targets for the years 2016-2017. The maximum potential future payments related to the contingent consideration is $15 million. The Company completed the fair value allocation in the fourth quarter of 2015. The amortization period for intangible assets acquired in connection with Jordan Valley is 7 years for customer relationships, existing technology and trade name.

        The results of Jordan Valley, including the amount allocated to goodwill which is attributable to expected synergies and not expected to be deductible for tax purposes, have been included in the BSI Segment from the date of acquisition. Pro forma financial information reflecting the acquisition of Jordan Valley has not been presented because the impact on revenues, net income and total assets is not material.

Note 4—Fair Value of Financial Instruments

        The Company measures the following financial assets and liabilities at fair value on a recurring basis. The following tables set forth the Company's financial instruments and presents them within the fair value hierarchy using the lowest level of input that is significant to the fair value measurement at December 31, 2015 and 2014 (in millions):

                                                                                                                                                                                    

 

                                                                                                                                                                                    

        Derivative financial instruments are classified within level 2 because there is not an active market for each derivative contract. However, the inputs used to calculate the value of the instruments are obtained from active markets.

        The fair value of the long-term fixed interest rate debt, which has been classified as Level 2, was $252.1 million and $257.2 million at December 31, 2015 and 2014, respectively, based on market and observable sources with similar maturity dates.

        The Company measures certain assets and liabilities at fair value with changes in fair value recognized in earnings. Fair value treatment may be elected either upon initial recognition of an eligible asset or liability or, for an existing asset or liability, if an event triggers a new basis of accounting. The Company did not elect to remeasure any of its existing financial assets or liabilities during the year ended December 31, 2015.

        As part of certain acquisitions in 2015, 2014 and 2013, the Company recorded contingent consideration liabilities that have been classified as Level 3 in the fair value hierarchy. The contingent consideration represents the estimated fair value of future payments to the former shareholders of applicable acquired companies based on achieving annual revenue and gross margin targets in certain years as specified in the purchase and sale agreements. The Company initially valued the contingent consideration by using a Monte Carlo simulation which models future revenue and costs of goods sold projections and discounts the average results to present value. Changes to the fair value of the contingent consideration recognized in earnings for the years ended December 31, 2015 and December 31, 2014 were ($7.7) million and $0.8 million, respectively, and were recorded to other charges, net in the consolidated statements of income and comprehensive income (loss). The adjustment for the year ended December 31, 2015 included a reversal of certain contingent consideration, as it was determined that certain financial targets related to the applicable products would not meet the required thresholds for payment. The following table sets forth the changes in contingent consideration liabilities for the years ended December 31, 2015 and 2014 (in millions):

                                                                                                                                                                                    

        During the second quarter of 2014, the Company commenced a program to enter into time deposits with varying maturity dates ranging from one to twelve months, as well as call deposits for which the Company has the ability to redeem the invested amounts over a period of 31 to 95 days. The Company has classified these investments within cash and cash equivalents or short-term investments within the consolidated balance sheets based on the call and maturity dates. There are no cash equivalents and $201.2 million of short-term investments outstanding as of December 31, 2015.

        Short-term investments are classified as available-for-sale and are reported at fair value, with unrealized gains (losses) excluded from earnings and reported, net of tax, in accumulated other comprehensive income (loss) within the accompanying consolidated balance sheets. There were no unrealized gains (losses) recorded as of December 31, 2015 and 2014. On a quarterly basis, the Company reviews its short-term investments to determine if there have been any events that could create an impairment. None were noted for the years ended December 31, 2015 and 2014.