Retirement Benefit Plans - Expected Future Benefit Payments (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Pension
Defined Benefit Plan Disclosure [Line Items]
2026	$ 11,383
2027	11,890
2028	12,287
2029	12,580
2030	12,801
Thereafter	65,432
SERP
Defined Benefit Plan Disclosure [Line Items]
2026	471
2027	451
2028	428
2029	404
2030	377
Thereafter	1,463
OPEB
Defined Benefit Plan Disclosure [Line Items]
2026	1,195
2027	1,219
2028	1,185
2029	1,153
2030	1,108
Thereafter	$ 5,078

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.

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