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Financial Instruments and Fair Value Measurements | 12 Months Ended
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Dec. 31, 2017
Fair Value Disclosures [Abstract] |
Financial Instruments and Fair Value Measurements | FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS The fair value of a financial instrument represents the amount at which the instrument could be exchanged in a current transaction between willing parties, other than in a forced sale or liquidation. Fair value estimates are made at a specific point in time, based on relevant market information about the financial instrument. These estimates are subjective in nature and involve uncertainties and matters of judgment, and therefore cannot be determined with precision. Accounting standards define fair value as the price that would be received from selling an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. Accounting standards establish a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value and also establishes the following three levels of inputs that may be used to measure fair value:
Level 1 | Quoted prices in active markets for identical assets or liabilities
Level 2 | Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted market prices in markets that are not active; or model-derived valuations or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities
Level 3 | Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities
The following methods and assumptions were used by us in estimating fair value disclosures for financial instruments:
• | Cash and cash equivalents, receivables, other current assets, vehicle floorplan payable, accounts payable, other current liabilities, commercial paper, and variable rate debt: The amounts reported in the accompanying Consolidated Balance Sheets approximate fair value due to their short-term nature or the existence of variable interest rates that approximate prevailing market rates.
• | Fixed rate long-term debt: Our fixed rate long-term debt consists primarily of amounts outstanding under our senior unsecured notes. We estimate the fair value of our senior unsecured notes using quoted prices for the identical liability (Level 1). A summary of the aggregate carrying values and fair values of our fixed rate long-term debt is as follows:
| December 31, 2017 |  | December 31, 2016
Carrying value | $ | 2,373.7 |  |  | $ | 1,778.6 |
Fair value | $ | 2,442.1 |  |  | $ | 1,862.2 |
Nonfinancial assets such as goodwill, other intangible assets, and long-lived assets held and used are measured at fair value when there is an indicator of impairment and recorded at fair value only when impairment is recognized or for a business combination. The fair values less costs to sell of long-lived assets or disposal groups held for sale are assessed each reporting period they remain classified as held for sale. Subsequent changes in the held for sale long-lived asset’s or disposal group’s fair value less cost to sell (increase or decrease) are reported as an adjustment to its carrying amount, except that the adjusted carrying amount cannot exceed the carrying amount of the long-lived asset or disposal group at the time it was initially classified as held for sale. The following table presents nonfinancial assets measured and recorded at fair value on a nonrecurring basis during the years ended December 31, 2017 and 2016:
| 2017 |  | 2016
Description | Fair Value Measurements Using Significant Unobservable Inputs (Level 3) |  | Gain/(Loss) |  | Fair Value Measurements Using Significant Unobservable Inputs (Level 3) |  | Gain/(Loss)
Long-lived assets held and used | $ | — |  |  | $ | (0.4 | ) |  | $ | 5.9 |  |  | $ | (1.9 | )
Assets held for sale: |  |  |  |  |  |  |
Continuing operations | $ | 121.3 |  |  | $ | (26.0 | ) |  | $ | 19.4 |  |  | $ | (12.1 | )
Discontinued operations | — |  |  | — |  |  | 12.7 |  |  | (0.7 | )
Total assets held for sale | $ | 121.3 |  |  | $ | (26.0 | ) |  | $ | 32.1 |  |  | $ | (12.8 | )
Goodwill and Other Intangible Assets Goodwill for our reporting units is tested for impairment annually as of April 30 or more frequently when events or changes in circumstances indicate that the carrying value of a reporting unit more likely than not exceeds its fair value. We elected to perform a quantitative goodwill impairment test as of April 30, 2017. As discussed in Note 1 above, the FASB issued an accounting standard update that requires goodwill impairment to be measured based on the amount by which the carrying amount of a reporting unit exceeds its fair value. The adoption of this standard had no impact to our consolidated financial statements as the fair values of each of our reporting units were substantially in excess of their carrying values as of April 30, 2017. The quantitative goodwill impairment test requires a determination of whether the fair value of a reporting unit is less than its carrying value. We estimate the fair value of our reporting units using an “income” valuation approach, which discounts expected future cash flows of the reporting unit at a computed weighted average cost of capital as the discount rate. The income valuation approach requires the use of significant estimates and assumptions, which include revenue growth rates and future operating margins used to calculate projected future cash flows, weighted average costs of capital, and future economic and market conditions. In connection with this process, we also reconcile the estimated aggregate fair values of our reporting units to our market capitalization, including consideration of a control premium that represents the estimated amount an investor would pay for our equity securities to obtain a controlling interest. We believe that this reconciliation process is consistent with a market participant perspective. We base our cash flow forecasts on our knowledge of the automotive industry, our recent performance, our expectations of our future performance, and other assumptions we believe to be reasonable but that are unpredictable and inherently uncertain. The development of the assumptions used in our annual impairment tests are coordinated by our financial planning and analysis group, and the assumptions are reviewed by management. Actual future results may differ from those estimates. We also make certain judgments and assumptions in allocating shared assets and liabilities to determine the carrying values for each of our reporting units. For our April 30, 2016 and 2015 annual goodwill impairment assessments, we chose to make a qualitative evaluation about the likelihood of goodwill impairment and determined that it was not more likely than not that the fair values of our reporting units were less than their carrying amounts. Our principal identifiable intangible assets are individual store rights under franchise agreements with vehicle manufacturers, which have indefinite lives and are tested for impairment annually as of April 30 or more frequently when events or changes in circumstances indicate that impairment may have occurred. We elected to perform quantitative franchise rights impairment tests as of April 30, 2017, and no impairment charges resulted from the impairment tests. The quantitative impairment test for franchise rights requires the comparison of the franchise rights’ estimated fair value to carrying value by store. Fair values of rights under franchise agreements are estimated using Level 3 inputs by discounting expected future cash flows of the store. The forecasted cash flows contain inherent uncertainties, including significant estimates and assumptions related to growth rates, margins, working capital requirements, capital expenditures, and cost of capital, for which we utilize certain market participant-based assumptions, using third-party industry projections, economic projections, and other marketplace data we believe to be reasonable. The development of the assumptions used in our annual impairment tests are coordinated by our financial planning and analysis group, and the assumptions are reviewed by management. For our April 30, 2016 and 2015 annual franchise rights impairment assessments, we chose to make a qualitative evaluation about the likelihood of franchise rights impairment to determine whether it was necessary to perform a quantitative test. Based on our qualitative assessment of potential franchise rights impairment, we determined that we should perform a quantitative test for certain franchise rights, and no impairment charges resulted from these quantitative tests. As a result of the issues related to Volkswagen associated with certain of its diesel engine vehicles, during the fourth quarter of 2015, we performed a quantitative impairment test of the franchise rights recorded at our Volkswagen stores. As a result of this test, we recorded non-cash impairment charges during 2015 of $15.4 million to reduce the carrying values of the Volkswagen franchise rights to their estimated fair values. The non-cash impairment charges are reflected as Franchise Rights Impairment in the accompanying Consolidated Statements of Income. Long-Lived Assets The fair value measurement valuation process for our long-lived assets is established by our corporate real estate services group. Fair value measurements, which are based on Level 3 inputs, and changes in fair value measurements are reviewed and assessed each quarter for properties classified as held for sale, or when an indicator of impairment exists for properties classified as held and used, by the corporate real estate services group. Our corporate real estate services group utilizes its knowledge of the automotive industry and historical experience in real estate markets and transactions in establishing the valuation process, which is generally based on a combination of the market and replacement cost approaches. In certain cases, fair value measurements are based on pending agreements to sell the related assets. In a market approach, the corporate real estate services group uses transaction prices for comparable properties that have recently been sold. These transaction prices are adjusted for factors related to a specific property. The corporate real estate services group also evaluates changes in local real estate markets, and/or recent market interest or negotiations related to a specific property. In a replacement cost approach, the cost to replace a specific long-lived asset is considered, which is adjusted for depreciation from physical deterioration, as well as functional and economic obsolescence, if present and measurable. To validate the fair values determined under the valuation process noted above, our corporate real estate services group also obtains independent third-party appraisals for our properties and/or third-party brokers’ opinions of value, which are generally developed using the same valuation approaches described above, and evaluates any recent negotiations or discussions with third-party real estate brokers related to a specific long-lived asset or market. Long-lived Assets Held and Used in Continuing Operations The non-cash impairment charges of $0.4 million and $1.9 million recorded in 2017 and 2016, respectively, are included in Other Income, Net (within Operating Income) in our Consolidated Statements of Income and are reported in the “Corporate and other” category of our segment information. Assets Held for Sale in Continuing Operations The net adjustments recorded to assets held for sale in 2017 of $26.0 million and non-cash impairment charges recorded in 2016 of $12.1 million, are included in Other Income, Net (within Operating Income) in our Consolidated Statements of Income and are reported in the “Corporate and other” category of our segment information. Assets Held for Sale in Discontinued Operations The non-cash impairment charges recorded in 2016 of $0.7 million are included in Loss from Discontinued Operations in our Consolidated Statements of Income. As of December 31, 2017, we had assets held for sale of $169.1 million in continuing operations, primarily related to inventory, goodwill, franchise rights, and property of disposal groups held for sale, as well as other property held for sale. As of December 31, 2017, we also had assets held for sale of $14.4 million in discontinued operations, primarily related to property held for sale. As of December 31, 2016, we had assets held for sale of $41.4 million in continuing operations and $15.7 million in discontinued operations, primarily related to property held for sale.

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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 -URI http://asc.fasb.org/topic&trid=2155941 + Details
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