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Lease Commitments (Narrative) (Details) - USD ($) $ in Thousands | Dec. 26, 2020 | Dec. 28, 2019 | Dec. 29, 2018
--- | --- | --- | ---
Operating Leased Assets [Line Items] |  |  |
Operating lease right-to-use | $ 199,901 | $ 210,196 |
Operating lease liability | $ 208,229 |  |
Percentage of facilities under operating lease | 51.00% |  |
Maximum [Member] |  |  |
Operating Leased Assets [Line Items] |  |  |
Lease renewal term | 20 years |  |
Minimum [Member] |  |  |
Operating Leased Assets [Line Items] |  |  |
Lease renewal term | 5 years |  |
Accounting Standards Update 2016-02 [Member] |  |  |
Operating Leased Assets [Line Items] |  |  |
Operating lease right-to-use |  |  | $ 202,000
Operating lease liability |  |  | $ 211,000

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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Percentage of open store facilities leased through operating leasing arrangements. + References No definition available. + Details
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- Details
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- Details
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