Retirement Benefit Plans (Expected Plan Benefit Payments) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Defined Benefit Plan Disclosure [Line Items]
2020	$ 23,823
2021	24,904
2022	26,018
2023	27,006
2024	28,269
2025-2029	160,431
Total	290,451
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2020	22,974
2021	24,016
2022	25,163
2023	26,130
2024	27,414
2025-2029	156,055
Total	281,752
Other Post-Retirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2020	849
2021	888
2022	855
2023	876
2024	855
2025-2029	4,376
Total	$ 8,699

Defined benefit plan expected future benefit payments.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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