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Earnings Per Share and Certain Related Information - Dividends (Details) - $ / shares |  |  |  |  |  | 12 Months Ended
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Jan. 16, 2020 | Sep. 19, 2019 | Jul. 11, 2019 | May 02, 2019 | Jan. 17, 2019 | Oct. 02, 2020 | Sep. 27, 2019 | Sep. 28, 2018
Earnings Per Share Reconciliation [Abstract] |  |  |  |  |  |  |  |
Dividends declared (in dollars per share) |  |  | $ 0.17 | $ 0.17 | $ 0.17 | $ 0.19 |  |
Dividends paid (in dollars per share) | $ 0.19 | $ 0.17 |  |  |  |  | $ 0.19 | $ 0.19

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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