Postretirement Benefits (PBO and ABO for Pension Plan and for Postretirement Benefit Plan) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Retirement Benefits [Abstract]
PBO of plan assets for pension plan with plan assets in excess of its ABO	$ 19.0	$ 21.5
PBO of plan assets for pension plan with plan assets in excess of its PBO	19.0	21.5
ABO of plan assets for pension plan with plan assets in excess of its PBO	19.0	21.5
ABO of plan assets for pension plan with plan assets in excess of its ABO	19.0	21.5
Fair value of the plan assets for pension plan with plan assets in excess of its PBO	25.4	26.7
Fair value of the plan assets for pension plan with plan assets in excess of its ABO	$ 25.4	$ 26.7

Defined Benefit Plan, Pension Plan With Plan Assets In Excess Of Accumulated Benefit Obligation, Accumulated Benefit Obligation

No definition available.

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Defined Benefit Plan, Pension Plan With Plan Assets In Excess Of Accumulated Benefit Obligation, Plan Assets

No definition available.

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Defined Benefit Plan, Pension Plan With Plan Assets In Excess Of Accumulated Benefit Obligation, Projected Benefit Obligation

No definition available.

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Defined Benefit Plan, Pension Plan With Plan Assets In Excess Of Projected Benefit Obligation, Projected Benefit Obligation

No definition available.

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Defined Benefit Plan, Pension Plans With Plan Assets In Excess Of Projected Benefit Obligations, Accumulated Benefit Obligation

No definition available.

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Defined Benefit Plan, Pension Plans With Plan Assets In Excess Of Projected Benefit Obligations, Plan Assets

No definition available.

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No definition available.

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