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Fair Value Measurements | 9 Months Ended
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Sep. 30, 2014
Fair Value Measurements |
Fair Value Measurements | Note 6— Fair Value Measurements We have categorized our assets and liabilities recorded at fair value based upon the fair value hierarchy. The levels of fair value hierarchy are as follows:
| · |  | Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we have the ability to access.
| · |  | Level 2 inputs utilize other-than-quoted prices that are observable, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets, and inputs such as interest rates and yield curves that are observable at commonly quoted intervals.
| · |  | Level 3 inputs are unobservable and are typically based on our own assumptions, including situations where there is little, if any, market activity.
In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, we categorize such assets or liabilities based on the lowest level input that is significant to the fair value measurement in its entirety. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset. Both observable and unobservable inputs may be used to determine the fair value of positions that are classified within the Level 3 category. As a result, the unrealized gains and losses for assets within the Level 3 category may include changes in fair value that were attributable to both observable (e.g., changes in market interest rates) and unobservable (e.g., changes in historical company data) inputs. The major categories of assets and liabilities measured on a recurring basis, at fair value, as of September 30, 2014 and December 31, 2013, are as follows (in thousands):
|  | September 30, 2014 |
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total |
Cash and cash equivalents |  |  |  |  |  |  |  |  |
U.S. treasuries |  | $ | 25,000 |  | $ | — |  | $ | — |  | $ | 25,000 |
Commercial paper |  | — |  | 3,999 |  | — |  | 3,999 |
Short-term investments |  |  |  |  |  |  |  |  |
U.S. treasuries |  | 90,558 |  | — |  | — |  | 90,558 |
Corporate debt |  | — |  | 69,198 |  | — |  | 69,198 |
Government agency securities |  | — |  | 63,198 |  | — |  | 63,198 |
|  | December 31, 2013 |
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total |
Short-term investments |  |  |  |  |  |  |  |  |
U.S. treasuries |  | $ | 130,977 |  | $ | — |  | $ | — |  | $ | 130,977 |
Corporate debt |  | — |  | 77,601 |  | — |  | 77,601 |
Government agency securities |  | — |  | 61,013 |  | — |  | 61,013 |
Commercial paper |  | — |  | 11,947 |  | — |  | 11,947 |
Derivative instrument |  | — |  | 907 |  | — |  | 907 |
Contingent consideration |  | — |  | — |  | (29,368 | ) | (29,368 | )
Highly liquid investments with maturities of three months or less when purchased may be classified as cash equivalents. Such items may include liquid money market accounts, U.S. treasuries, government agency securities and corporate debt. The investments that are classified as cash equivalents are carried at cost, which approximates fair value. Accordingly, no gains or losses (realized/unrealized) have been incurred for cash equivalents. All investments classified as available-for-sale are recorded at fair value within short-term investments in the Consolidated Balance Sheets. In determining the fair value of our investments and levels, through a third-party service provider, we use pricing information from pricing services that value securities based on quoted market prices in active markets and matrix pricing. Matrix pricing is a mathematical valuation technique that does not rely exclusively on quoted prices of specific investments, but on the investment’s relationship to other benchmarked quoted securities. We have a process in place for investment valuations to facilitate identification and resolution of potentially erroneous prices. We review the information provided by the third-party service provider to record the fair value of our portfolio. Consistent with Level 1 measurement principles, U.S. treasuries are priced using active market prices of identical securities. Consistent with Level 2 measurement principles, corporate debt, government agency securities, commercial paper, and derivative instruments are priced with matrix pricing. We estimate the fair value of acquisition-related contingent consideration based on management’s probability-weighted present value of the consideration expected to be transferred during the remainder of the earn-out period, based on the forecast related to the milestones. The fair value of the contingent consideration is reassessed by us on a quarterly basis using additional information as it becomes available. Any change in the fair value of an acquisition’s contingent consideration liability results in a gain or loss that is recorded in the earnings of that period. This fair value measure is based on significant inputs not observed in the market and thus represents a Level 3 measurement. Fair value measurements characterized within Level 3 of the fair value hierarchy are measured based on unobservable inputs that are supported by little or no market activity and reflect our own assumptions in measuring fair value. The significant unobservable inputs used in the fair value measurements of our acquisition-related contingent consideration include our measures of the probability of the achievement of certain agreed upon milestones and may include future profitability and related cash flows of the acquired business or assets, impacted by appropriate discount rates. Significant increases (decreases) in any of these inputs in isolation would result in a significantly lower (higher) fair value measurement. Generally, a change in the assumptions used for the discount rates is accompanied by a directionally opposite change in the fair value measurement and a change in the assumptions used for the future cash flows is accompanied by a directionally similar change in the fair value measurement. A reconciliation of the amount in Level 3 is as follows (in thousands):
|  | Level 3 |
Balance as of December 31, 2013 |  | $ | (29,368 | )
Addition of contingent consideration |  | — |
Payment on contingent consideration, net of adjustment |  | — |
Fair value adjustment of contingent consideration |  | 29,368 |
Balance as of September 30, 2014 |  | $ | — |

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13504-108611 + Details
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