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Pension and Non-pension Post-employment Benefit Plans - Plan Balances Reported on Consolidated Balance Sheet (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosure of defined benefit plans [line items] |  |
Pension and non-pension post-employment benefit obligations | $ (88.1) | $ (77.0)
Current other post-employment benefit obligations | 0.0 | (0.1)
Non-current net defined benefit asset (note 9) | 5.3 | 7.1
Excess (deficiency) of plan assets over accrued benefit obligations | (82.8) | (70.0)
Pension Plan |  |
Disclosure of defined benefit plans [line items] |  |
Pension and non-pension post-employment benefit obligations | (16.0) | (13.1)
Current other post-employment benefit obligations | 0.0 | 0.0
Non-current net defined benefit asset (note 9) | 5.3 | 7.1
Excess (deficiency) of plan assets over accrued benefit obligations | (10.7) | (6.0)
Other benefit plans |  |
Disclosure of defined benefit plans [line items] |  |
Pension and non-pension post-employment benefit obligations | (72.1) | (63.9)
Current other post-employment benefit obligations | 0.0 | (0.1)
Non-current net defined benefit asset (note 9) | 0.0 | 0.0
Excess (deficiency) of plan assets over accrued benefit obligations | $ (72.1) | $ (64.0)

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- Definition Defined Benefit Plan, Amounts For Asset (Liability) Recognized In Statement Of Financial Position + References No definition available. + Details
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- Definition The amount of current net defined benefit liability. [Refer: Net defined benefit liability] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
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