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Financial instruments - Additional Information (Detail)
12 Months Ended
Apr. 25, 2024
USD ($)
counterparty
agreement
Feb. 26, 2024
USD ($)
agreement
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2024
EUR (€)
Apr. 25, 2024
EUR (€)
counterparty
agreement
Oct. 02, 2023
EUR (€)
derivative_instrument
Oct. 01, 2023
USD ($)
Dec. 31, 2019
USD ($)
counterparty
Dec. 31, 2019
EUR (€)
counterparty
Derivatives Fair Value [Line Items]                      
Derivative, number of instruments held | derivative_instrument               6      
Cash Flow Hedging                      
Derivatives Fair Value [Line Items]                      
Ineffectiveness on hedging derivatives     $ 0 $ 0 $ 0            
Designated as Hedging Instrument                      
Derivatives Fair Value [Line Items]                      
Loss on sale of derivatives $ 400,000                    
Foreign Currency Exchange Contracts | Not Designated as Hedging Instrument                      
Derivatives Fair Value [Line Items]                      
Gain on derivative     4,100,000                
Loss on derivative       3,200,000              
Total notional amount for all open foreign currency forward contracts     168,600,000 195,000,000.0              
Foreign Currency Exchange Contracts | Designated as Hedging Instrument | BIOTRONIK                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts | €           € 700,000,000          
Foreign Currency Exchange Contracts | Designated as Hedging Instrument | Cash Flow Hedging                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts     $ 270,900,000 234,100,000              
Cross Currency Interest Rate Contract | Designated as Hedging Instrument                      
Derivatives Fair Value [Line Items]                      
Total notional amount for all open foreign currency forward contracts       $ 500,000,000       € 474,700,000 $ 500,000,000 $ 250,000,000 € 219,200,000
Derivative, number of instruments held | counterparty                   5 5
Derivative, fixed interest rate               3.05% 4.63% 4.88% 4.88%
Derivative, annual interest rate                   2.46% 2.46%
Proceeds from derivative instrument, investing activities   $ 12,100,000                  
Number of new agreements | agreement 2 2         2        
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 $ 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 | €             € 233,400,000        
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 | €             € 233,400,000        
Derivative, fixed interest rate 2.45%           2.45%