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Retirement and Deferred Compensation Plans - Schedule of Plans with Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets (Details) - Pension Plan [Member] - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Defined Benefit Plan Disclosure [Line Items] |  |
Accumulated benefit obligation | $ 129.9 | $ 113.4
Plan assets | $ 89.0 | $ 76.8

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