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Retirement Plans (Contributions Expected To Be Paid In The Next Fiscal Year And The Projected Benefit Payments) (Details) $ in Thousands | Sep. 30, 2018 USD ($)
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Supplemental Employee Retirement Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Estimated net contributions during fiscal 2018 | $ 5,038
Defined Benefit Pension Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
2018 | 17,077
2019 | 17,721
2020 | 18,376
2021 | 19,206
2022 | 20,438
2023-2027 | 121,677
Postretirement Health Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Estimated net contributions during fiscal 2018 | 1,382
2018 | 1,382
2019 | 1,430
2020 | 1,526
2021 | 1,569
2022 | 1,581
2023-2027 | $ 8,169

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