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Reclassifications out of Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
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Dec. 31, 2024
Equity [Abstract] |
Summary of Reclassifications Out of Accumulated Other Comprehensive Loss | Reclassifications out of accumulated other comprehensive loss (“AOCL”) for 2024 were:
(in millions) |  |  |  |  |
Details about AOCL Components |  | Amount Reclassified from AOCL |  |  | Affected Line Item in the Statement where Net Income is Presented
Defined benefit pension plan items: |  |  |  |  |
Amortization of prior service cost |  | $ | 8.4 |  |  | See (1) below
Amortization of actuarial net losses |  |  | (0.2 | ) |  | See (1) below
Pension scheme settlement |  |  | 138.1 |  |  | See (1) below
|  |  | 146.3 |  |  | Total before tax
|  |  | (47.8 | ) |  | Income tax expense
Total reclassifications |  | $ | 98.5 |  |  | Net of tax
These items are included in the computation of net periodic pension cost. See Note 10 of the Notes to the Consolidated Financial Statements for additional information. Reclassifications out of AOCL for 2023 were:
(in millions) |  |  |  |  |
Details about AOCL Components |  | Amount Reclassified from AOCL |  |  | Affected Line Item in the Statement where Net Income is Presented
Defined benefit pension plan items: |  |  |  |  |
Amortization of prior service cost |  | $ | 0.5 |  |  | See (1) below
Amortization of actuarial net losses |  |  | (2.1 | ) |  | See (1) below
|  |  | (1.6 | ) |  | Total before tax
|  |  | 0.3 |  |  | Income tax expense
Total reclassifications |  | $ | (1.3 | ) |  | Net of tax
These items are included in the computation of net periodic pension cost. See Note 10 of the Notes to the Consolidated Financial Statements for additional information.
Changes in Accumulated Other Comprehensive Loss | Changes in AOCL for 2024, net of tax, were:
(in millions) |  | Defined Benefit Pension Plan Items |  |  | Cumulative Translation Adjustments |  |  | Total |
Balance at December 31, 2023 |  | $ | (77.2 | ) |  | $ | (70.9 | ) |  | $ | (148.1 | )
Other comprehensive income/(losses) before reclassifications |  |  | — |  |  |  | (20.1 | ) |  |  | (20.1 | )
Amounts reclassified from AOCL |  |  | 98.5 |  |  |  | — |  |  |  | 98.5 |
Actuarial net losses arising during the year |  |  | (21.3 | ) |  |  | — |  |  |  | (21.3 | )
Net current period other comprehensive income/(losses) |  |  | 77.2 |  |  |  | (20.1 | ) |  |  | 57.1 |
Balance at December 31, 2024 |  | $ | — |  |  | $ | (91.0 | ) |  | $ | (91.0 | )
Changes in AOCL for 2023, net of tax, were:
(in millions) |  | Defined Benefit Pension Plan Items |  |  | Cumulative Translation Adjustments |  |  | Total |
Balance at December 31, 2022 |  | $ | (58.4 | ) |  | $ | (86.8 | ) |  | $ | (145.2 | )
Other comprehensive income/(losses) before reclassifications |  |  | — |  |  |  | 15.9 |  |  |  | 15.9 |
Amounts reclassified from AOCL |  |  | (1.3 | ) |  |  | — |  |  |  | (1.3 | )
Actuarial net losses arising during the year |  |  | (17.5 | ) |  |  | — |  |  |  | (17.5 | )
Net current period other comprehensive income/(losses) |  |  | (18.8 | ) |  |  | 15.9 |  |  |  | (2.9 | )
Balance at December 31, 2023 |  | $ | (77.2 | ) |  | $ | (70.9 | ) |  | $ | (148.1 | )

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