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Employee Benefit Plans - Asset Category and Fair Value of Plan Assets (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | $ 54.0 | $ 49.1 | $ 61.9
International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 41.8 | 0.0 |
Level 2 | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 50.5 | 48.0 |
Level 2 | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 0.2 |  |
Level 3 | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 3.5 | 1.1 | $ 2.0
Level 3 | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | $ 41.6 |  |
Equity funds | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Target Allocations by Asset Category | 30.00% |  |
Fair value of plan assets | $ 16.5 | 35.0 |
Equity funds | Level 2 | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 16.5 | 35.0 |
Equity funds | Level 3 | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | $ 0.0 | 0.0 |
Fixed income funds | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Target Allocations by Asset Category | 62.00% |  |
Fair value of plan assets | $ 34.0 | 13.0 |
Fixed income funds | Level 2 | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 34.0 | 13.0 |
Fixed income funds | Level 3 | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | $ 0.0 | 0.0 |
Other investments | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Target Allocations by Asset Category | 8.00% |  |
Fair value of plan assets | $ 3.5 | 1.1 |
Other investments | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Target Allocations by Asset Category | 7.00% |  |
Fair value of plan assets | $ 2.9 |  |
Other investments | Level 2 | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Other investments | Level 2 | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 0.0 |  |
Other investments | Level 3 | United States |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 3.5 | $ 1.1 |
Other investments | Level 3 | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | $ 2.9 |  |
Cash and cash equivalents | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Target Allocations by Asset Category | 0.00% |  |
Fair value of plan assets | $ 0.2 |  |
Cash and cash equivalents | Level 2 | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 0.2 |  |
Cash and cash equivalents | Level 3 | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | $ 0.0 |  |
Investments funds | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Target Allocations by Asset Category | 93.00% |  |
Fair value of plan assets | $ 38.7 |  |
Investments funds | Level 2 | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | 0.0 |  |
Investments funds | Level 3 | International Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of plan assets | $ 38.7 |  |

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