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Financial instruments - Additional information (Details) € in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 29, 2025 USD ($)	Jun. 30, 2024 USD ($)	Feb. 28, 2025 EUR (€)	Dec. 31, 2024 USD ($)	Apr. 25, 2024 EUR (€) counterparty agreement	Apr. 25, 2024 USD ($) counterparty agreement	Dec. 31, 2023 EUR (€) counterparty	Dec. 31, 2023 USD ($) counterparty
Derivatives Fair Value [Line Items]
Allowance for credit losses	$ 8,600,000		$ 8,600,000			$ 10,000,000
Allowance for credit losses, current	4,100,000		4,100,000			6,100,000
Cash flow hedging
Derivatives Fair Value [Line Items]
Ineffectiveness related to derivatives	0	$ 0	0	$ 0
Foreign exchange contract | Not designated as hedging instrument
Derivatives Fair Value [Line Items]
Gains (losses) on derivatives	63,800,000	$ (100,000)	86,400,000	$ 3,500,000
Total notional amount for all open foreign currency forward contracts	177,500,000		$ 177,500,000		€ 700.0	168,600,000
Derivative, term of contract			12 months
Foreign exchange contract | Designated as hedging instrument | Cash flow hedging
Derivatives Fair Value [Line Items]
Total notional amount for all open foreign currency forward contracts	$ 322,400,000		$ 322,400,000			$ 270,900,000
Cross-currency interest rate swaps | Designated as hedging instrument
Derivatives Fair Value [Line Items]
Total notional amount for all open foreign currency forward contracts										$ 500,000,000
Number of new agreements | agreement							2	2
Derivative, number of counterparties | counterparty									6	6
Cross-currency interest rate swaps | Designated as hedging instrument | Short
Derivatives Fair Value [Line Items]
Total notional amount for all open foreign currency forward contracts										$ 500,000,000
Derivative, fixed interest rate									4.63%	4.63%
Cross-currency interest rate swaps | Designated as hedging instrument | Long
Derivatives Fair Value [Line Items]
Total notional amount for all open foreign currency forward contracts | €									€ 474.7
Derivative, fixed interest rate									3.05%	3.05%
Cross Currency Interest Rate Contract, Expiring 2027 | Designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative, number of counterparties | counterparty							5	5
Cross Currency Interest Rate Contract, Expiring 2027 | Designated as hedging instrument | Short
Derivatives Fair Value [Line Items]
Total notional amount for all open foreign currency forward contracts								$ 250,000,000
Derivative, fixed interest rate							4.25%	4.25%
Cross Currency Interest Rate Contract, Expiring 2027 | Designated as hedging instrument | Long
Derivatives Fair Value [Line Items]
Total notional amount for all open foreign currency forward contracts | €							€ 233.4
Derivative, fixed interest rate							2.44%	2.44%
Cross Currency Interest Rate Contract, Expiring 2029 | Designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative, number of counterparties | counterparty							4	4
Cross Currency Interest Rate Contract, Expiring 2029 | Designated as hedging instrument | Short
Derivatives Fair Value [Line Items]
Total notional amount for all open foreign currency forward contracts								$ 250,000,000
Derivative, fixed interest rate							4.25%	4.25%
Cross Currency Interest Rate Contract, Expiring 2029 | Designated as hedging instrument | Long
Derivatives Fair Value [Line Items]
Total notional amount for all open foreign currency forward contracts | €							€ 233.4
Derivative, fixed interest rate							2.45%	2.45%

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