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Retirement Benefits (Schedule of Expected Benefit Payments) (Details) $ in Thousands | Sep. 30, 2020 USD ($)
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Defined Benefit Pension Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
2021 | $ 11,143
2022 | 11,627
2023 | 12,761
2024 | 13,124
2025 | 13,439
2026 – 2030 | 72,840
Other Postretirement Benefit Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
2021 | 3,113
2022 | 3,078
2023 | 3,017
2024 | 2,949
2025 | 2,867
2026 – 2030 | 12,690
United States [Member] | Defined Benefit Pension Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
2021 | 7,650
2022 | 8,280
2023 | 8,809
2024 | 9,283
2025 | 9,647
2026 – 2030 | 51,942
Foreign Plan | Defined Benefit Pension Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
2021 | 3,493
2022 | 3,347
2023 | 3,952
2024 | 3,841
2025 | 3,792
2026 – 2030 | $ 20,898

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