v3.26.1
Financial instruments -Narrative (Details)
€ in Millions, SFr in Millions
3 Months Ended 6 Months Ended
Sep. 30, 2025
USD ($)
counterparty
agreement
Jun. 30, 2026
USD ($)
Jun. 29, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 29, 2025
USD ($)
Dec. 31, 2025
USD ($)
Sep. 30, 2025
EUR (€)
counterparty
agreement
Aug. 18, 2025
USD ($)
counterparty
agreement
Aug. 18, 2025
CHF (SFr)
counterparty
agreement
Apr. 25, 2024
USD ($)
counterparty
agreement
Apr. 25, 2024
EUR (€)
counterparty
agreement
Derivatives Fair Value [Line Items]                      
Allowance for credit losses   $ 4,400,000   $ 4,400,000   $ 4,000,000.0          
Allowance for credit losses, current   3,200,000   3,200,000   2,600,000          
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   (4,600,000) $ 63,800,000 (7,400,000) $ 86,400,000            
Total notional amount for all open foreign currency forward contracts   309,200,000   $ 309,200,000   284,800,000          
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   $ 370,300,000   $ 370,300,000   $ 262,500,000          
Cross-currency interest rate swaps | Designated as hedging instrument                      
Derivatives Fair Value [Line Items]                      
Derivative, number of counterparties | counterparty 5           5        
Number of new agreements | agreement 2           2 2 2 2 2
Cross Currency Interest Rate Contract Executed September 2025, Expiring 2028 | Designated as hedging instrument                      
Derivatives Fair Value [Line Items]                      
Payment for settlement $ 53,500,000                    
Cross Currency Interest Rate Contract Executed September 2025, Expiring 2028 | 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 Contract Executed September 2025, Expiring 2028 | 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 2.77%           2.77%        
Cross Currency Interest Rate Contract Executed March 2026, Expiring 2028 | Designated as hedging instrument                      
Derivatives Fair Value [Line Items]                      
Derivative, number of counterparties | counterparty 2           2        
Derivative, fixed interest rate 1.21%           1.21%        
Cross Currency Interest Rate Contract Executed March 2026, Expiring 2028 | Designated as hedging instrument | Short                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts $ 100,000,000                    
Cross Currency Interest Rate Contract Executed March 2026, Expiring 2028 | Designated as hedging instrument | Long                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts | €             € 85.4        
Cross Currency Interest Rate Contract Executed March 2026, Expiring 2028, Agreement 1 | Designated as hedging instrument | Short                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts 50,000,000                    
Cross Currency Interest Rate Contract Executed March 2026, Expiring 2028, Agreement 2 | Designated as hedging instrument | Short                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts $ 50,000,000                    
Cross Currency Interest Rate Contract, Expiring 2030 | Designated as hedging instrument                      
Derivatives Fair Value [Line Items]                      
Derivative, number of counterparties | counterparty               6 6    
Derivative, fixed interest rate               3.15% 3.15%    
Cross Currency Interest Rate Contract, Expiring 2030 | Designated as hedging instrument | Short                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts               $ 300,000,000      
Cross Currency Interest Rate Contract, Expiring 2030 | Designated as hedging instrument | Long                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts | SFr                 SFr 242.4    
Cross Currency Interest Rate Contract, Expiring 2032 | Designated as hedging instrument                      
Derivatives Fair Value [Line Items]                      
Derivative, number of counterparties | counterparty               4 4    
Derivative, fixed interest rate               3.02% 3.02%    
Cross Currency Interest Rate Contract, Expiring 2032 | Designated as hedging instrument | Short                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts               $ 300,000,000      
Cross Currency Interest Rate Contract, Expiring 2032 | Designated as hedging instrument | Long                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts | SFr                 SFr 242.5    
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%