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Employee Benefit Plans (Narrative) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) pension_plan investment | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of significant plans | pension_plan | 3 |  |
Pension benefit obligation (as a percent) | 84.00% |  |
Number of frozen plans | pension_plan | 1 |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Operating Income (Expense), Net |  |
Number of investments | investment | 7 |  |
Expected employer contributions | $ | $ 1.3 |  |
Defined contribution plan, cost | $ | $ 14.2 | $ 13.7 | $ 12.6
Number of union sponsored multiemployer plans | pension_plan | 1 |  |
Withdrawal obligation | $ | $ 19.0 |  |
Minimum | U.S. treasuries |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Maturities (in years) | 20 years |  |
Maximum | U.S. treasuries |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Maturities (in years) | 30 years |  |
Mutual funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of investments | investment | 6 |  |
Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Average rate used to determine discount rate | 25.00% |  |
Other Postretirement Benefits Plan | Bonds | Frozen Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation (as a percent) | 60.00% |  |
Other Postretirement Benefits Plan | Bonds | Active Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation (as a percent) | 25.00% |  |
Other Postretirement Benefits Plan | Equity securities | Frozen Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation (as a percent) | 40.00% |  |
Other Postretirement Benefits Plan | Equity securities | Active Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation (as a percent) | 75.00% |  |

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