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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2018
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements Factors used in determining the fair value of our financial assets and liabilities are summarized into three broad categories:
• | Level 1 - quoted prices in active markets for identical securities;
• | Level 2 - other significant observable inputs, including quoted prices for similar securities, interest rates, prepayment spreads, credit risk; and
• | Level 3 - significant unobservable inputs, including our own assumptions in determining fair value.
We determined the carrying value of cash equivalents, accounts receivable, trade payables, accrued liabilities and short-term borrowings approximate their fair values because of the nature of their terms and current market rates of these instruments. We believe the carrying value of our variable rate debt approximates fair value. We have fixed rate debt primarily consisting of amounts outstanding under our senior notes and real estate mortgages. We calculated the estimated fair value of the senior notes using quoted prices for the identical liability (Level 1) and calculated the estimated fair value of the fixed rate real estate mortgages using a discounted cash flow methodology with estimated current interest rates based on a similar risk profile and duration (Level 2). The fixed cash flows are discounted and summed to compute the fair value of the debt. As of December 31, 2018, our real estate mortgages and other debt, which includes capital leases, had maturity dates between January 12, 2019 and December 31, 2050. We estimate the value of other long-lived assets that are recorded at fair value on a non-recurring basis on a market valuation approach. We use prices and other relevant information generated primarily by recent market transactions involving similar or comparable assets, as well as our historical experience in divestitures, acquisitions and real estate transactions. Additionally, we may use a cost valuation approach to value long-lived assets when a market valuation approach is unavailable. Under this approach, we determine the cost to replace the service capacity of an asset, adjusted for physical and economic obsolescence. When available, we use valuation inputs from independent valuation experts, such as real estate appraisers and brokers, to corroborate our estimates of fair value. Real estate appraisers' and brokers' valuations are typically developed using one or more valuation techniques including market, income and replacement cost approaches. Because these valuations contain unobservable inputs, we classified the measurement of fair value of long-lived assets as Level 3. There were no changes to our valuation techniques during the year ended December 31, 2018. A summary of the aggregate carrying values, excluding unamortized debt issuance cost, and fair values of our long-term fixed interest rate debt is as follows (in millions):
December 31, |  | 2018 |  | 2017
Carrying value |  |  |  |
5.25% Senior Notes due 2025 |  | $ | 300.0 |  |  | $ | 300.0 |
Real Estate Mortgages and Other Debt |  | 445.8 |  |  | 376.9 |
|  | $ | 745.8 |  |  | $ | 676.9 |
Fair value |  |  |  |
5.25% Senior Notes due 2025 |  | $ | 278.6 |  |  | $ | 312.8 |
Real Estate Mortgages and Other Debt |  | 448.7 |  |  | 385.3 |
|  | $ | 727.3 |  |  | $ | 698.1 |
Below are our long-lived assets that are measured at fair value (in millions):
Fair Value at December 31, 2018 |  | Level 1 |  | Level 2 |  | Level 3
Measured on a non-recurring basis: |  |  |  |  |  |
Long-lived assets held and used: |  |  |  |  |  |
Certain buildings and improvements |  | $ | — |  |  | $ | — |  |  | $ | 2.3 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI http://asc.fasb.org/topic&trid=2155941 + Details
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