Employee Benefit Plans - Schedule of Plan Assets Using the Fair Value Hierarchy (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | $ 164.8 | $ 166 | |
Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 150.8 | 151.8 | |
Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0.7 | 0.7 | |
Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0.7 | 0.6 | |
Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 12.6 | 12.9 | |
U.S. equity | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 32.7 | 32.3 | |
U.S. equity | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 32.7 | 32.3 | |
U.S. equity | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
U.S. equity | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
U.S. equity | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
International equity | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 31.9 | 30.6 | |
International equity | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 31.9 | 30.6 | |
International equity | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
International equity | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
International equity | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Corporate bonds and notes | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 27.1 | 35.7 | |
Corporate bonds and notes | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 27.1 | 35.7 | |
Corporate bonds and notes | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Corporate bonds and notes | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Corporate bonds and notes | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Government and agency bonds | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 34.7 | 30.1 | |
Government and agency bonds | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 34.7 | 30.1 | |
Government and agency bonds | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Government and agency bonds | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Government and agency bonds | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Commingled funds | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 18.9 | 17.8 | |
Commingled funds | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 18.9 | 17.8 | |
Commingled funds | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Commingled funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Commingled funds | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
International fixed income | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 2.2 | 0.5 | |
International fixed income | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 2.2 | 0.5 | |
International fixed income | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
International fixed income | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
International fixed income | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Cash and cash equivalents | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0.7 | 0.6 | |
Cash and cash equivalents | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 0 | 0 | |
Cash and cash equivalents | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Cash and cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0.7 | 0.6 | |
Cash and cash equivalents | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Money market funds | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0.7 | 0.7 | |
Money market funds | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 0 | 0 | |
Money market funds | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0.7 | 0.7 | |
Money market funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Money market funds | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Other | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 3.3 | 4.8 | |
Other | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 3.3 | 4.8 | |
Other | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Other | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Other | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Insurance Group Annuity Contracts | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 12.6 | 12.9 | $ 12.6 |
Insurance Group Annuity Contracts | Net Asset Value ("NAV") | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | [1] | 0 | 0 | |
Insurance Group Annuity Contracts | Significant Other Observable Inputs (Level 2) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Insurance Group Annuity Contracts | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | 0 | 0 | |
Insurance Group Annuity Contracts | Unobservable Inputs (Level 3) | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Fair value of plan assets | | $ 12.6 | $ 12.9 | |
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[1] | Certain assets that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy. | |