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Employee Benefit Plans and Other Postretirement Benefits - Schedule of Fair Value Measurements of Plan Assets by Major Asset Category (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Fair value of plan assets at plan year end |  | $ 267.2 | $ 1,100.0 |
Pension Plans |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Fair value of plan assets at plan year end |  | 1,161.6 | 1,055.3 | $ 1,382.7
Pension Plans | Accrued Expenses and Receivables |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Fair value of plan assets at plan year end |  | 5.3 | (4.0) |
Pension Plans | Defined Benefit Plan, Cash |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 12.2 | 9.9 |
Pension Plans | International equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 179.8 | 132.6 |
Pension Plans | Domestic equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 130.4 | 98.2 |
Pension Plans | Corporate Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 362.2 | 338.5 |
Pension Plans | U.S. Government Agency Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 297.5 | 167.1 |
Pension Plans | Fixed Income Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 160.7 | 282.6 |
Pension Plans | Municipal Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 12.7 | 21.4 |
Pension Plans | Private Equity Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.8 | 1.0 |
Pension Plans | Total Securities at Fair Value |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 1,156.3 | 1,051.3 |
Pension Plans | Quoted prices in active markets for identical assets (Level 1) | Defined Benefit Plan, Cash |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Quoted prices in active markets for identical assets (Level 1) | International equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 96.4 | 73.3 |
Pension Plans | Quoted prices in active markets for identical assets (Level 1) | Domestic equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Quoted prices in active markets for identical assets (Level 1) | Corporate Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Quoted prices in active markets for identical assets (Level 1) | U.S. Government Agency Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Quoted prices in active markets for identical assets (Level 1) | Fixed Income Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Quoted prices in active markets for identical assets (Level 1) | Municipal Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Quoted prices in active markets for identical assets (Level 1) | Private Equity Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Quoted prices in active markets for identical assets (Level 1) | Total Securities at Fair Value |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 96.4 | 73.3 |
Pension Plans | Significant other observable inputs (Level 2) | Defined Benefit Plan, Cash |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 12.2 | 9.9 |
Pension Plans | Significant other observable inputs (Level 2) | International equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 53.7 | 42.4 |
Pension Plans | Significant other observable inputs (Level 2) | Domestic equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 130.4 | 98.2 |
Pension Plans | Significant other observable inputs (Level 2) | Corporate Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 362.2 | 338.5 |
Pension Plans | Significant other observable inputs (Level 2) | U.S. Government Agency Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 297.5 | 167.1 |
Pension Plans | Significant other observable inputs (Level 2) | Fixed Income Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 160.7 | 282.6 |
Pension Plans | Significant other observable inputs (Level 2) | Municipal Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 12.7 | 21.4 |
Pension Plans | Significant other observable inputs (Level 2) | Private Equity Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Significant other observable inputs (Level 2) | Total Securities at Fair Value |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 1,029.4 | 960.1 |
Pension Plans | Significant unobservable input (Level 3) | Defined Benefit Plan, Cash |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Significant unobservable input (Level 3) | International equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Significant unobservable input (Level 3) | Domestic equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Significant unobservable input (Level 3) | Corporate Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Significant unobservable input (Level 3) | U.S. Government Agency Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Significant unobservable input (Level 3) | Fixed Income Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Significant unobservable input (Level 3) | Municipal Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 |  |
Pension Plans | Significant unobservable input (Level 3) | Private Equity Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Significant unobservable input (Level 3) | Total Securities at Fair Value |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets |  | 0.0 | 0.0 |
Pension Plans | Net Asset Value (NAV) | Defined Benefit Plan, Cash |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets | [1] | 0.0 | 0.0 |
Pension Plans | Net Asset Value (NAV) | International equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets | [1] | 29.7 | 16.9 |
Pension Plans | Net Asset Value (NAV) | Domestic equities (Common/Collective Trust Funds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets | [1] | 0.0 | 0.0 |
Pension Plans | Net Asset Value (NAV) | Corporate Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets | [1] | 0.0 | 0.0 |
Pension Plans | Net Asset Value (NAV) | U.S. Government Agency Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets | [1] | 0.0 | 0.0 |
Pension Plans | Net Asset Value (NAV) | Fixed Income Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets | [1] | 0.0 | 0.0 |
Pension Plans | Net Asset Value (NAV) | Municipal Bonds (Corporate and Government Bonds) |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets | [1] | 0.0 |  |
Pension Plans | Net Asset Value (NAV) | Private Equity Securities |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets | [1] | 0.8 | 1.0 |
Pension Plans | Net Asset Value (NAV) | Total Securities at Fair Value |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Total fair value of plan assets | [1] | $ 30.5 | $ 17.9 |
[1] | In accordance with ASC 820, Fair Value Measurement, certain investments that do not have readily determinable fair values are measured at fair value using the net asset value (NAV) per share practical expedient and are not classified within the fair value hierarchy.

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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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