Employee benefit plans - future benefits expected to be paid (Details) $ in Millions	Dec. 31, 2025 USD ($)
United States \| Pension plans
Defined benefit plan, expected future benefit payment
2026	$ 0.7
2027	0.7
2028	0.7
2029	0.7
2030	0.7
2031 – 2035	3.0
United States \| Medical plans
Defined benefit plan, expected future benefit payment
2026	0.9
2027	0.9
2028	0.9
2029	1.0
2030	1.0
2031 – 2035	4.6
Non-U.S. \| Pension plans
Defined benefit plan, expected future benefit payment
2026	10.1
2027	10.3
2028	11.4
2029	13.2
2030	12.7
2031 – 2035	$ 63.8

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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- Definition

Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

+ References

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