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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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