Pension Plans - Qualified and Non-Qualified Plans - Adjustments to Equity (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in equity as a result of change in deferred net loss	$ 5.3	$ (0.6)	$ 9.9

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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