Retirement Benefits - Narrative (Details) - USD ($) $ in Millions |
9 Months Ended | |
|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Contributions by employer | $ 3.5 | $ 3.9 |
| Pension Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Expected contribution for next fiscal year | 3.6 | |
| Other Postretirement Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Expected contribution for next fiscal year | $ 1.1 | |
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition 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. No definition available.
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- Definition Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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