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Retirement Plans - Schedule of Future Cash Flows (Details) $ in Thousands | 6 Months Ended
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Apr. 12, 2020 USD ($)
SERP |
Defined Benefit Plan Disclosure [Line Items] |
Net year-to-date contributions | $ 2,857
Remaining estimated net contributions during fiscal 2020 | 2,514
Postretirement Healthcare Plans |
Defined Benefit Plan Disclosure [Line Items] |
Net year-to-date contributions | 725
Remaining estimated net contributions during fiscal 2020 | $ 676

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