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Pension and other post-employment benefits - Schedule of Fair Value of Investments by Asset Category (Details) - Level 1 $ in Thousands | Dec. 31, 2024 USD ($)
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Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan amount | $ 822,837
Defined benefit plan, percentage | 100.00%
Equity securities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan amount | $ 396,341
Defined benefit plan, percentage | 48.00%
Debt securities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan amount | $ 377,755
Defined benefit plan, percentage | 46.00%
Other |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan amount | $ 48,741
Defined benefit plan, percentage | 6.00%

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