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Fair Value of Financial Instruments (Tables) | 12 Months Ended
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Dec. 26, 2020
Fair Value Disclosures [Abstract] |
Summary of Carrying Amounts and Fair Values of Financial Instruments | The carrying amounts and fair values of the Company’s financial instruments are as follows:
|  | December 26, 2020 |  |  | December 28, 2019 |
|  | Carrying Amount |  |  | Fair Value |  |  | Carrying Amount |  |  | Fair Value |
Cash and cash equivalents |  | $ | 1,458,442 |  |  | $ | 1,458,442 |  |  | $ | 1,027,567 |  |  | $ | 1,027,567 |
Restricted cash |  | $ | 306 |  |  | $ | 306 |  |  | $ | 71 |  |  | $ | 71 |
Marketable securities |  | $ | 1,518,817 |  |  | $ | 1,518,817 |  |  | $ | 1,581,938 |  |  | $ | 1,581,938 |

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13467-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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