Pensions (Details) - Defined Benefit Plan Reconciliations - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Defined benefit plans | ||
| Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] | ||
| Benefit obligation at beginning of period | $ 172.9 | $ 184.0 |
| Interest cost / (credit) | 0.7 | |
| Actuarial gain | (54.3) | (16.9) |
| Benefits paid | (1.8) | (1.7) |
| Foreign exchange rate changes | (10.6) | 7.7 |
| Benefit obligation at end of period | 106.9 | 172.9 |
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ||
| Fair value of plan assets at beginning of period | 172.9 | 184.0 |
| Actual return on plan assets | (53.6) | (17.1) |
| Foreign exchange rate changes | (10.6) | 7.7 |
| Fair value of plan assets at end of period | 106.9 | 172.9 |
| Net defined benefit plans | ||
| Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] | ||
| Interest cost / (credit) | $ 0.7 | $ (0.2) |
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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