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Pension Plans - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
In respect of defined benefit plans: |  |  |
Net benefit surplus / (obligation) | $ 54.8 | $ 49.2 |
Total (credit) / expense for defined benefit plans | (1.4) | (1.0) | $ 7.9
Defined benefit plan, expected amortization, next fiscal year | 0.7 |  |
Defined benefit plan, expected amortization of gain (loss), next fiscal year | 1.1 |  |
Defined benefit plan, expected amortization of prior service credit | 0.4 |  |
Expected future employer contributions, next fiscal year | 0.0 | 0.0 |
Selling, general and administrative expenses |  |  |
In respect of defined benefit plans: |  |  |
Total (credit) / expense for defined benefit plans | 0.1 |  |
U.K. |  |  |
In respect of defined benefit plans: |  |  |
Net benefit surplus / (obligation) | 54.9 | 49.3 |
Total (credit) / expense for defined benefit plans | (1.4) | (1.0) | (1.5)
Other |  |  |
In respect of defined benefit plans: |  |  |
Net benefit surplus / (obligation) | (0.1) | (0.1) |
Total (credit) / expense for defined benefit plans | $ 0.0 | 0.0 | $ 9.4
Settlement loss |  | (29.3) |
Plan assets, divestiture |  | 27.2 |
Contributions from employer |  | $ 2.1 |

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