v3.26.3
Other Non-current Assets - Investments in Joint Ventures (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Mar. 31, 2025
Aug. 31, 2026
Aug. 31, 2025
May 31, 2026
Dec. 31, 2025
Investments in Joint Ventures          
Income (losses) from joint ventures   $ 2.8 $ 3.0    
Investments in joint ventures   51.5   $ 49.0  
AAR sumisho aviation services          
Investments in Joint Ventures          
Income (losses) from joint ventures   4.2 5.0    
Investment in xCelle Americas, LLC ("xCelle Americas") | Affiliated entity          
Investments in Joint Ventures          
Related party transaction   0.2 0.1    
Owned Through Joint Ventures | Aircraft          
Investments in Joint Ventures          
Proceeds from evaluation and inspection services   $ 0.6 $ 1.1    
Owned Through Joint Ventures | AAR sumisho aviation services          
Investments in Joint Ventures          
Ownership interest in joint ventures (as a percent)   50.00%      
Owned Through Joint Ventures | Investment in xCelle Americas, LLC ("xCelle Americas")          
Investments in Joint Ventures          
Ownership interest in joint ventures (as a percent)   49.90%      
Loan given with semi-annual principal payments $ 3.3        
Term of the loan (in years) 5 years        
Percentage of interest 2.70%        
Owned Through Joint Ventures | Joint Venture in XCelle Asia          
Investments in Joint Ventures          
Ownership interest in joint ventures (as a percent)         49.90%
Investments in joint ventures         $ 7.1