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Supplemental Consolidated Cash Flow Information (Additional Information Related To Cash Flows) (Details) - USD ($) $ in Thousands | 4 Months Ended
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Jan. 17, 2021 | Jan. 19, 2020
Supplemental Cash Flow Information [Abstract] |  |
Decrease in obligations for treasury stock repurchases | $ 0 | $ 2,025
Decrease in obligations for purchases of property and equipment | 74 | 2,377
Increase in dividends accrued or converted to common stock equivalents | 53 | 63
Right-of use assets obtained in exchange for operating lease obligations | 40,266 | 51,311
Right-of use assets obtained in exchange for finance lease obligations | $ 65 | $ 0

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- Definition The increase (decrease) during the reporting period of obligations, not classified as trade payables, incurred and payable for the acquisition of merchandise, materials, supplies, and services pertaining to construction projects. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the liability under agreements to repurchase securities that were sold. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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