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Fair Value of Financial Instruments | 3 Months Ended
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Apr. 01, 2017
Fair Value of Financial Instruments |
Fair Value of Financial Instruments | 3. Fair Value of Financial Instruments The fair values of the Company’s financial instruments are recorded using a hierarchical disclosure framework based upon the level of subjectivity of the inputs used in measuring assets and liabilities. The three levels are described below: Level 1 - Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date. Level 2 - Inputs are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 - Inputs are unobservable for the asset or liability and are developed based on the best information available in the circumstances, which might include the Company’s own data. The following summarizes the valuation of the Company’s financial instruments (in thousands). The tables do not include either cash on hand or assets and liabilities that are measured at historical cost or any basis other than fair value.
|  | Fair Value Measurements at April 1, 2017 Using |  |  |
Description |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total |
Assets: |  |  |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 85,090 |  | $ | — |  | $ | — |  | $ | 85,090 |
Certificates of deposit |  | — |  | 32,183 |  | — |  | 32,183 |
Commercial paper |  | — |  | 30,582 |  | — |  | 30,582 |
Municipal bonds |  | — |  | 6,034 |  | — |  | 6,034 |
Corporate bonds |  | — |  | 1,498 |  | — |  | 1,498 |
Total cash equivalents |  | $ | 85,090 |  | $ | 70,297 |  | $ | — |  | $ | 155,387 |
Short-term investments: |  |  |  |  |  |  |  |  |
Variable-rate demand notes |  | $ | — |  | $ | 117,770 |  | $ | — |  | $ | 117,770 |
Corporate bonds |  | — |  | 108,828 |  | — |  | 108,828 |
Municipal bonds |  | — |  | 78,555 |  | — |  | 78,555 |
U.S. government bonds |  | 50,437 |  | — |  | — |  | 50,437 |
Asset-backed securities |  | — |  | 25,519 |  | — |  | 25,519 |
Agency bonds |  | — |  | 7,482 |  | — |  | 7,482 |
Commercial paper |  | — |  | 6,239 |  | — |  | 6,239 |
International government bonds |  | — |  | 1,497 |  | — |  | 1,497 |
Total short-term investments |  | $ | 50,437 |  | $ | 345,890 |  | $ | — |  | $ | 396,327 |
Long-term investments: |  |  |  |  |  |  |  |  |
Auction rate securities |  | $ | — |  | $ | — |  | $ | 5,257 |  | $ | 5,257 |
Total long-term investments |  | $ | — |  | $ | — |  | $ | 5,257 |  | $ | 5,257 |
Total |  | $ | 135,527 |  | $ | 416,187 |  | $ | 5,257 |  | $ | 556,971 |
Liabilities: |  |  |  |  |  |  |  |  |
Other non-current liabilities: |  |  |  |  |  |  |  |  |
Contingent consideration |  | $ | — |  | $ | — |  | $ | 3,829 |  | $ | 3,829 |
Total |  | $ | — |  | $ | — |  | $ | 3,829 |  | $ | 3,829 |
|  | Fair Value Measurements at December 31, 2016 Using |  |  |
Description |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total |
Assets: |  |  |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 69,432 |  | $ | — |  | $ | — |  | $ | 69,432 |
Certificates of deposit |  | — |  | 7,153 |  | — |  | 7,153 |
Municipal bonds |  | — |  | 3,904 |  | — |  | 3,904 |
Total cash equivalents |  | $ | 69,432 |  | $ | 11,057 |  | $ | — |  | $ | 80,489 |
Short-term investments: |  |  |  |  |  |  |  |  |
Municipal bonds |  | $ | — |  | $ | 79,702 |  | $ | — |  | $ | 79,702 |
Corporate bonds |  | — |  | 31,036 |  | — |  | 31,036 |
Variable-rate demand notes |  | — |  | 16,400 |  | — |  | 16,400 |
U.S. government bonds |  | 12,416 |  | — |  | — |  | 12,416 |
Asset-backed securities |  | — |  | 8,173 |  | — |  | 8,173 |
Commercial paper |  | — |  | 5,233 |  | — |  | 5,233 |
International government bonds |  | — |  | 1,001 |  | — |  | 1,001 |
Total short-term investments |  | $ | 12,416 |  | $ | 141,545 |  | $ | — |  | $ | 153,961 |
Long-term investments: |  |  |  |  |  |  |  |  |
Auction rate securities |  | $ | — |  | $ | — |  | $ | 5,196 |  | $ | 5,196 |
Total long-term investments |  | $ | — |  | $ | — |  | $ | 5,196 |  | $ | 5,196 |
Other assets, net: |  |  |  |  |  |  |  |  |
Derivative instruments |  | $ | — |  | $ | 1,808 |  | $ | — |  | $ | 1,808 |
Total |  | $ | — |  | $ | 1,808 |  | $ | — |  | $ | 1,808 |
Total |  | $ | 81,848 |  | $ | 154,410 |  | $ | 5,196 |  | $ | 241,454 |
Valuation methodology The Company’s cash equivalents and short-term investments that are classified as Level 2 are valued using non-binding market consensus prices that are corroborated with observable market data; quoted market prices for similar instruments in active markets; or pricing models, such as a discounted cash flow model, with all significant inputs derived from or corroborated with observable market data. Investments classified as Level 3 are valued using a discounted cash flow model. The assumptions used in preparing the discounted cash flow model include estimates for interest rates, amount of cash flows, expected holding periods of the securities and a discount to reflect the Company’s inability to liquidate the securities. The Company’s derivative instruments are valued using discounted cash flow models. The assumptions used in preparing the valuation models include quoted interest swap rates, foreign exchange rates, forward and spot prices for currencies, and market observable data of similar instruments. The Company’s contingent consideration is valued using a probability weighted discounted cash flow model. The assumptions used in preparing the discounted cash flow model include estimates for the outcome if the milestone goal is achieved, the probability of achieving each outcome and discount rates. Available-for-sale investments The Company’s investments typically have original maturities greater than ninety days as of the date of purchase. Investments are reported at fair value, with unrealized gains and losses, net of tax, recorded as a component of accumulated other comprehensive income (loss) in the Consolidated Balance Sheet. The following summarizes the contractual underlying maturities of the Company’s available-for-sale investments at April 1, 2017 (in thousands):
|  | Cost |  | Fair Value |
Due in one year or less |  | $ | 291,314 |  | $ | 291,287 |
Due after one year through ten years |  | 149,197 |  | 149,157 |
Due after ten years |  | 117,270 |  | 116,527 |
|  | $ | 557,781 |  | $ | 556,971 |
The available-for-sale investments that were in a continuous unrealized loss position, aggregated by length of time that individual securities have been in a continuous loss position, were as follows (in thousands):
|  | Less Than 12 Months |  | 12 Months or Greater |  | Total |
As of April 1, 2017 |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |
Corporate bonds |  | $ | 45,299 |  | $ | (145 | ) | $ | — |  | $ | — |  | $ | 45,299 |  | $ | (145 | )
Municipal bonds |  | 38,781 |  | (42 | ) | — |  | — |  | 38,781 |  | (42 | )
U.S. government bonds |  | 28,251 |  | (23 | ) | — |  | — |  | 28,251 |  | (23 | )
Asset-backed securities |  | 17,478 |  | (22 | ) | — |  | — |  | 17,478 |  | (22 | )
Auction rate securities |  | — |  | — |  | 5,257 |  | (742 | ) | 5,257 |  | (742 | )
Agency bonds |  | 3,498 |  | (1 | ) | — |  | — |  | 3,498 |  | (1 | )
International government bonds |  | 1,497 |  | (2 | ) | — |  | — |  | 1,497 |  | (2 | )
|  | $ | 134,804 |  | $ | (235 | ) | $ | 5,257 |  | $ | (742 | ) | $ | 140,061 |  | $ | (977 | )
|  | Less Than 12 Months |  | 12 Months or Greater |  | Total |
As of December 31, 2016 |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |
Municipal bonds |  | $ | 69,379 |  | $ | (140 | ) | $ | — |  | $ | — |  | $ | 69,379 |  | $ | (140 | )
Corporate bonds |  | 18,561 |  | (128 | ) | — |  | — |  | 18,561 |  | (128 | )
U.S. government bonds |  | 10,364 |  | (16 | ) | — |  | — |  | 10,364 |  | (16 | )
Auction rate securities |  | — |  | — |  | 5,196 |  | (804 | ) | 5,196 |  | (804 | )
Asset-backed securities |  | 3,176 |  | (4 | ) | — |  | — |  | 3,176 |  | (4 | )
|  | $ | 101,480 |  | $ | (288 | ) | $ | 5,196 |  | $ | (804 | ) | $ | 106,676 |  | $ | (1,092 | )
The gross unrealized losses as of April 1, 2017 and December 31, 2016 were due primarily to the illiquidity of the Company’s auction-rate securities and, to a lesser extent, to changes in market interest rates. The Company’s auction-rate securities have been illiquid since 2008 when auctions for the securities failed because sell orders exceeded buy orders. These securities have a contractual maturity date of 2046 at April 1, 2017. The Company is unable to predict if these funds will become available before their maturity date. The Company does not expect to need access to the capital represented by any of its auction-rate securities prior to their maturities. The Company does not intend to sell, and believes it is not more likely than not that it will be required to sell, its auction-rate securities before their anticipated recovery in market value or final settlement at the underlying par value. The Company believes that the credit ratings and credit support of the security issuers indicate that they have the ability to settle the securities at par value. As such, the Company has determined that no other-than-temporary impairment losses existed as of April 1, 2017. At April 1, 2017 and December 31, 2016, there were no material unrealized gains associated with the Company’s available-for-sale investments. Level 3 fair value measurements The following summarizes quantitative information about Level 3 fair value measurements. Auction rate securities
Fair Value at April 1, 2017 (000s) |  | Valuation Technique |  | Unobservable Input |  | Weighted Average |
$ | 5,257 |  | Discounted cash flow |  | Estimated yield |  | 0.9% |
|  |  |  | Expected holding period |  | 10 years |
|  |  |  | Estimated discount rate |  | 3.56% |
The Company has followed an established internal control procedure used in valuing auction rate securities. The procedure involves the analysis of valuation techniques and evaluation of unobservable inputs commonly used by market participants to price similar instruments, and which have been demonstrated to provide reasonable estimates of prices obtained in actual market transactions. Outputs from the valuation process are assessed against various market sources when they are available, including marketplace quotes, recent trades of similar illiquid securities, benchmark indices and independent pricing services. The technique and unobservable input parameters may be recalibrated periodically to achieve an appropriate estimation of the fair value of the securities. Significant changes in any of the unobservable inputs used in the fair value measurement of auction rate securities in isolation could result in a significantly lower or higher fair value measurement. An increase in expected yield would result in a higher fair value measurement, whereas an increase in expected holding period or estimated discount rate would result in a lower fair value measurement. Generally, a change in the assumptions used for expected holding period is accompanied by a directionally similar change in the assumptions used for estimated yield and discount rate. Contingent consideration
Fair Value at April 1, 2017 (000s) |  | Valuation Technique |  | Unobservable Input |  | Weighted Average |
$ | 3,829 |  | Discounted cash flow |  | Expected term |  | 9 months |
|  |  |  | Estimated discount rate |  | 12.0% |
The Company has followed an established internal control procedure used in valuing contingent consideration. The valuation of contingent consideration for the Zentri acquisition is based on a discounted cash flow model. The fair value of this valuation is estimated on a quarterly basis through a collaborative effort by the Company’s sales, marketing and finance departments. Significant changes in any of the unobservable inputs used in the fair value measurement of contingent consideration in isolation could result in a significantly lower or higher fair value. A change in projected revenue would be accompanied by a directionally similar change in fair value. The following summarizes the activity in Level 3 financial instruments for the three months ended April 1, 2017 (in thousands): Assets
Auction Rate Securities |  | Three Months Ended |
Beginning balance |  | $ | 5,196 |
Gain included in other comprehensive loss |  | 61 |
Balance at April 1, 2017 |  | $ | 5,257 |
Liabilities
Contingent Consideration (1) |  | Three Months Ended |
Beginning balance |  | $ | — |
Issues |  | 3,829 |
Balance at April 1, 2017 |  | $ | 3,829 |
(1) In connection with the acquisition of Zentri, the Company recorded contingent consideration based upon the expected achievement of a milestone goal. Changes to the fair value of contingent consideration due to changes in assumptions used in preparing the valuation model are recorded in selling, general and administrative expenses in the Consolidated Statement of Income. Fair values of other financial instruments The Company’s debt is recorded at cost, but is measured at fair value for disclosure purposes. The Company’s convertible senior notes are traded in less active markets and are therefore classified as a Level 2 fair value measurement. The fair value of the convertible senior notes at April 1, 2017 was $426.3 million. The Company’s prior debt under the Credit Facility bore interest at the Eurodollar rate plus an applicable margin. Fair value was estimated based on Level 2 inputs, using a discounted cash flow analysis of future principal payments and projected interest based on current market rates. As of April 1, 2017 and December 31, 2016, the fair value of the Company’s debt under the Credit Facility was approximately $0.0 and $72.5 million, respectively. The Company’s other financial instruments, including cash, accounts receivable and accounts payable, are recorded at amounts that approximate their fair values due to their short maturities.

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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 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 2: 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 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 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611 Reference 5: 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=73719730&loc=d3e13504-108611 Reference 6: 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=73719730&loc=d3e13433-108611 + Details
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