Retirement Plans - Schedule of Future Cash Flows (Details) $ in Thousands	6 Months Ended
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

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration