Financial instruments - Foreign exchange gains and losses recognized within AOCI and the interest benefit recognized within interest expense (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Oct. 01, 2023	Sep. 25, 2022	Oct. 01, 2023	Sep. 25, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Foreign exchange gain	$ (29,417)	$ (55,194)	$ (13,368)	$ (123,576)
Interest benefit			15,459	15,677
Cross-currency interest rate swaps \| Not designated as hedging instrument
Derivative Instruments, Gain (Loss) [Line Items]
Interest benefit	5,171	5,531	15,459	15,677
Cross-currency interest rate swaps \| Cash flow hedging
Derivative Instruments, Gain (Loss) [Line Items]
Foreign exchange gain	$ 15,756	$ 42,189	$ 1,466	$ 68,643

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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