Note 5 - Fair Value Measurement	9 Months Ended
Sep. 30, 2020
Notes to Financial Statements
Fair Value Disclosures [Text Block]	5. Fair Value Measurement For purposes of determining a fair value measurement, we utilize market data or assumptions that market participants would use in pricing an asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs can be readily observable, market corroborated or generally unobservable. We utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. These inputs are prioritized into a hierarchy that gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (“Level 1”) and the lowest priority to unobservable inputs that require assumptions to measure fair value (“Level 3”). Level 2 inputs are those that are other than quoted prices on national exchanges included within Level 1 that are observable for the asset or liability either directly or indirectly (“Level 2”). Fair Value of Other Financial Instrument. The estimated fair value of other financial instruments is determined using market information and appropriate valuation methodologies. Interpreting market data to develop fair value estimates involves considerable judgment. The use of different market assumptions or methodologies could have a material effect on the estimated fair value amounts. Accordingly, the estimates presented are not necessarily indicative of the amounts that we could realize in a current market exchange, or the value that ultimately will be realized upon maturity or disposition. The carrying amounts of the following instruments approximate fair value due to their short term to maturity: (i) accounts receivable, (ii) prepaid and other current assets, (iii) accounts payable, (iv) accrued employee compensation and benefits, (v) accrued interest, (vi) other accrued expenses, (vii) acquisition-related liabilities and (viii) deferred revenue. The carrying amount and the fair value of our long-term debt was approximately $4 billion, as of September 30, 2020 and December 31, 2019. Fair value of our long-term debt is based on observable estimates provided by third-party financial professionals as of September 30, 2020 and December 31, 2019 and as such is classified within Level 2 of the fair value hierarchy.

- 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.

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