v3.26.1
Investments in Other Companies (Details)
$ in Thousands, shares in Millions
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
item
shares
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
shares
Investments in other companies              
Long-term debt     $ 2,296,458   $ 2,296,458   $ 2,392,084
Long-term receivables and other assets     $ 355,672   355,672   370,144
Aero Engines, LLC. ("Aero Engines")              
Investments in other companies              
Payments to acquire interest in joint venture         $ 26,600    
Investment ownership (as a percent)     75.00%   75.00%    
Long-term debt     $ 0   $ 0    
Distribution received from investment         5,500   12,000
Aero Engines, LLC. ("Aero Engines") | Other Assets              
Investments in other companies              
Investment balance in other companies     8,700   8,700   12,800
Aero Engines, LLC. ("Aero Engines") | Other income (expense), net              
Investments in other companies              
Company's portion of income (loss) generated by other companies     $ 800 $ (400) $ 1,300 $ 100  
Contour Airlines              
Investments in other companies              
Investment ownership (as a percent)   9.90% 25.00%   25.00%    
Payments to acquire equity method investment $ 15,100 $ 9,900          
Number of board of directors seats held | item         1    
Total number of board of directors seats | item         5    
Percentage of board of directors seats held     20.00%   20.00%    
Long-term receivables and other assets     $ 7,000   $ 7,000    
Aircraft and collectible years         3 years    
Contour Airlines | Other Assets              
Investments in other companies              
Investment balance in other companies     21,700   $ 21,700   $ 22,800
Contour Airlines | Other income (expense), net              
Investments in other companies              
Company's portion of income (loss) generated by other companies     (1,800) (200) $ (1,000) 700  
Eve Holding, Inc              
Investments in other companies              
Number of shares held | shares         1.1   1.1
Eve Holding, Inc | Other Assets              
Investments in other companies              
Investment balance in other companies     2,700   $ 2,700   $ 4,300
Eve Holding, Inc | Other income (expense), net              
Investments in other companies              
Unrealized gain (loss)     $ 100 $ 5,300 $ (1,600) $ 2,100