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Financial instruments and risks - Summary of Equity To Changes in Foreign Exchange Rates (Detail) - Presentation Currency - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure Of Effect Of Changes In Foreign Exchange Rates [Line Items]    
Sensitivity analysis, change in exchange rate, percent 10.00%  
USD/CHF | Maximum    
Disclosure Of Effect Of Changes In Foreign Exchange Rates [Line Items]    
Increase / (decrease) of equity in exchange rate $ 1,552 $ 14,198
USD/CHF | Minimum    
Disclosure Of Effect Of Changes In Foreign Exchange Rates [Line Items]    
Increase / (decrease) of equity in exchange rate (1,552) (14,198)
USD/EUR | Maximum    
Disclosure Of Effect Of Changes In Foreign Exchange Rates [Line Items]    
Increase / (decrease) of equity in exchange rate 383 44
USD/EUR | Minimum    
Disclosure Of Effect Of Changes In Foreign Exchange Rates [Line Items]    
Increase / (decrease) of equity in exchange rate (383) (44)
USD/GBP | Maximum    
Disclosure Of Effect Of Changes In Foreign Exchange Rates [Line Items]    
Increase / (decrease) of equity in exchange rate 18 50
USD/GBP | Minimum    
Disclosure Of Effect Of Changes In Foreign Exchange Rates [Line Items]    
Increase / (decrease) of equity in exchange rate $ (18) $ (50)