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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2020
Fair Value Disclosures [Abstract] |
Fair Value Measurements | 14. Fair Value Measurements The following table summarizes information regarding Nucor’s financial assets and liabilities that are measured at fair value. Nucor does not have any non-financial assets or liabilities that are measured at fair value on a recurring basis.
|  |  |  |  |  | (in thousands) |
|  |  |  |  | Fair Value Measurements at Reporting Date Using |
|  |  |  |  |  | Quoted Prices |  |  |  |  |  |  |  |  |
|  |  |  |  |  | in Active |  |  | Significant |  |  |  |  |
|  | Carrying |  |  | Markets for |  |  | Other |  |  | Significant |
|  | Amount in |  |  | Identical |  |  | Observable |  |  | Unobservable |
|  | Consolidated |  |  | Assets |  |  | Inputs |  |  | Inputs |
Description |  | Balance Sheets |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
As of December 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 2,186,820 |  |  | $ | 2,186,820 |  |  | $ | — |  |  | $ | — |
Short-term investments |  |  | 408,004 |  |  |  | 408,004 |  |  |  | — |  |  |  | — |
Restricted cash and cash equivalents |  |  | 115,258 |  |  |  | 115,258 |  |  |  | — |  |  |  | — |
Total assets |  | $ | 2,710,082 |  |  | $ | 2,710,082 |  |  | $ | — |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative contracts |  | $ | (14,361 | ) |  | $ | — |  |  | $ | (14,361 | ) |  | $ | — |
As of December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 1,229,000 |  |  | $ | 1,229,000 |  |  | $ | — |  |  | $ | — |
Short-term investments |  |  | 300,040 |  |  |  | 300,040 |  |  |  | — |  |  |  | — |
Total assets |  | $ | 1,529,040 |  |  | $ | 1,529,040 |  |  | $ | — |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative contracts |  | $ | (19,599 | ) |  | $ | — |  |  | $ | (19,599 | ) |  | $ | — |
Fair value measurements for Nucor’s cash equivalents, short-term investments and restricted cash and cash equivalents are classified under Level 1 because such measurements are based on quoted market prices in active markets for identical assets. Fair value measurements for Nucor’s derivatives, which are typically commodity or foreign exchange contracts, are classified under Level 2 because such measurements are based on published market prices for similar assets or are estimated based on observable inputs such as interest rates, yield curves, credit risks, spot and future commodity prices, and spot and future exchange rates. There were no transfers between levels in the fair value hierarchy for the periods presented. The fair value of short-term and long-term debt, including current maturities, was approximately $6.05 billion at December 31, 2020 (approximately $4.81 billion at December 31, 2019). The debt fair value estimates are classified under Level 2 because such estimates are based on readily available market prices of our debt at December 31, 2020 and 2019, or similar debt with the same maturities, ratings and interest rates. Disclosures are required for certain assets and liabilities that are measured at fair value, but are recognized and disclosed on a nonrecurring basis in periods subsequent to initial recognition. For Nucor, our equity investment in Duferdofin Nucor was measured at fair value as a result of the impairment charges recorded in 2020 (see Note 9).

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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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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