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Financial Investments - Summary of Financial Investments (Parenthetical) (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of financial assets [line items]    
Debt Instrument Year Of Maturity 2030 years  
Financial instruments fair value $ 988.0 $ 691.7
Structured notes [member]    
Disclosure of financial assets [line items]    
Financial instruments fair value 133.2 0.0
Investment funds [member]    
Disclosure of financial assets [line items]    
Financial instruments fair value 125.2 27.4
Investment funds [member] | Embraer Multi Strategy Equity Investment Fund [Member]    
Disclosure of financial assets [line items]    
Financial instruments fair value 22.0 27.4
Investment funds [member] | Portfolio managed by PNC Bank [Member]    
Disclosure of financial assets [line items]    
Financial instruments fair value 103.2 $ 0.0
Financial Institution and Brazilian Government [member] | Structured notes [member]    
Disclosure of financial assets [line items]    
Credit risk of financial instruments 87.1  
Two Financial Institutions [member] | Structured notes [member]    
Disclosure of financial assets [line items]    
Credit risk of financial instruments $ 46.1