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Summary of Significant Accounting Policies - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 26, 2020 | Dec. 28, 2019 | Dec. 29, 2018
Summary Of Significant Accounting Policies [Line Items] |  |  |
Total, at cost | $ 1,587,817 | $ 1,405,997 |
Accumulated depreciation | (732,278) | (677,076) |
Property and equipment, net | 855,539 | 728,921 | $ 663,527
Land |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Total, at cost | 124,654 | 112,267 |
Buildings and Improvements [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Total, at cost | $ 662,753 | 597,387 |
Buildings and Improvements [Member] | Minimum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Life | 15 years |  |
Buildings and Improvements [Member] | Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Life | 50 years |  |
Machinery Equipment and Software [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Total, at cost | $ 800,410 | $ 696,343 |
Machinery Equipment and Software [Member] | Minimum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Life | 3 years |  |
Machinery Equipment and Software [Member] | Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Life | 10 years |  |

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- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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