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Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 25, 2021 | Sep. 24, 2020 | Dec. 26, 2019 | Sep. 26, 2019
Statement of Stockholders' Equity [Abstract] |  |  |  |
Cash dividends per common share | $ 2.50 | $ 2.50 | $ 2.00 | $ 3.00
Pension liability amortization income tax expense | $ 104 | $ 104 | $ 86 | $ 86

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- Definition Amount of tax (expense) benefit for reclassification adjustment from accumulated other comprehensive (income) loss of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e640-108580 + Details
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