XML 142 R128.htm IDEA: XBRL DOCUMENT v3.25.1
Financial instruments-Risk management and fair value - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of detailed information about financial instruments [line items]      
Mark to market derivative income (expense) $ 0 $ 0  
Investments at fair value 107,800 102,100  
Net change in fair value of derivatives 4,469 (98,347) $ 17,189
Debt including current maturities $ 1,670,807 $ 1,462,691  
Interest rate and cash flow risk      
Disclosure of detailed information about financial instruments [line items]      
Average interest rate on derivatives 100.00%    
Change in interest expense $ 5,900    
Increase decrease in fair value of debt $ 22,900    
U.S. dollars      
Disclosure of detailed information about financial instruments [line items]      
Percentage of foreign exchange risk expenses 83.60%    
U.S. dollars | U.S. dollars      
Disclosure of detailed information about financial instruments [line items]      
Percentage of foreign exchange risk revenue 65.00% 64.30%  
2034 | Bottom of range      
Disclosure of detailed information about financial instruments [line items]      
Effective interest rates of borrowings 1.74% 1.73%  
Fixed Rated Debt      
Disclosure of detailed information about financial instruments [line items]      
Debt including current maturities $ 1,077,400    
Variable Rated Debt      
Disclosure of detailed information about financial instruments [line items]      
Debt including current maturities $ 593,400    
Fuel derivative instruments      
Disclosure of detailed information about financial instruments [line items]      
Derivative instrument hypothetical increases percentage 10.00%    
Fuel derivative instruments | 2023 projection      
Disclosure of detailed information about financial instruments [line items]      
Derivative instrument expense increase $ 81,900