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FAIR VALUE MEASUREMENTS | 12 Months Ended
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Dec. 27, 2023
Fair Value Disclosures [Abstract] |
FAIR VALUE MEASUREMENTS | FAIR VALUE MEASUREMENTS Assets and Liabilities Measured at Fair Value on a Recurring Basis The carrying values of the Company's Cash and cash equivalents, Accounts receivable, net, Accounts payable and Accrued expenses approximate fair value due to the short-term nature of these financial instruments. The Company's marketable securities were as follows:
|  |  | December 27 2023 |  | December 28 2022
Equity securities |  | $ | — |  |  | $ | 80,707 |
Held-to-maturity securities |  | 68,561 |  |  | — |
Total marketable securities |  | $ | 68,561 |  |  | $ | 80,707 |
The Company classified its available-for-sale and held-to-maturity securities as Level 1 measurements within the fair value hierarchy. Refer to Note 9, Debt, for additional information relating to the fair value of the Company's outstanding debt instruments. The Company's held-to-maturity securities were as follows:
|  | December 27, 2023
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
U.S. Treasuries | $ | 68,561 |  |  | $ | 481 |  |  | $ | — |  |  | $ | 69,042 |
As of December 27, 2023, the contractual maturities of held-to-maturity securities were less than 12 months. Any expected credit losses would not be material to the Consolidated Statements of Income (Loss). A summary of other income from investments was as follows:
| 2023 |  | 2022 |  | 2021
| Income from investments | $ | 2,885 |  |  | $ | 1,033 |  |  | $ | 301 |
| Realized gain (loss) on sale of equity securities | 81 |  |  | — |  |  | (5) |
| Unrealized loss on equity securities | — |  |  | (158) |  |  | (277) |
Total | $ | 2,966 |  |  | $ | 875 |  |  | $ | 19 |
Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis Assets and liabilities measured at fair value on a non-recurring basis include long-lived assets, operating lease right-of-use assets and indefinite-lived intangible assets. The Company performs its impairment analysis at least annually or whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. No impairment charges were recognized during fiscal 2023. During fiscal 2022, the Company recognized an impairment charge of $99 related to one Shack. These impairment charges were included in Impairment and loss on disposal of assets on the Consolidated Statements of Income (Loss). There were no impairment charges recognized during fiscal 2021. The fair values of assets were determined using an income-based approach and are classified as Level 3 within the fair value hierarchy. Significant inputs include projections of future cash flows, discount rates, Shack sales and profitability.

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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 -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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