v3.26.3
Concentration of Risk (Details)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Aug. 31, 2026
USD ($)
aircraft
Lessee
Aug. 31, 2025
USD ($)
Lessee
Aug. 31, 2026
USD ($)
aircraft
Lessee
Aug. 31, 2025
USD ($)
Lessee
Feb. 28, 2026
USD ($)
aircraft
Lessee
Oct. 09, 2026
aircraft
Concentration Risk [Line Items]            
Number of Aircraft 263   263   277  
Percentage 100.00% 100.00% 100.00% 100.00% 100.00%  
Number of off-lease aircraft marketed for lease or sale 11   11      
Gain on sale or disposition of flight equipment | $ $ 38,162 $ 23,889 $ 49,028 $ 54,178    
Subsequent Event            
Concentration Risk [Line Items]            
Number of off-lease aircraft marketed for lease or sale           7
Number of Aircraft Formerly Leased to Bankrupt Customers           4
Number of Offlease Aircraft Sold Subsequent to Period End           4
Narrow-body | Subsequent Event            
Concentration Risk [Line Items]            
Number of off-lease aircraft marketed for lease           3
Largest lessees by lease rental revenue            
Concentration Risk [Line Items]            
Number of customers | Lessee 3 2 3 2    
Customer Concentration Risk | Lease Rental Revenue | Largest lessees by lease rental revenue            
Concentration Risk [Line Items]            
Percentage 23.00% 16.00% 22.00% 16.00%    
Asia and Pacific            
Concentration Risk [Line Items]            
Number of Aircraft 71   71   70  
Asia and Pacific | Geographic Concentration Risk | Net Book Value            
Concentration Risk [Line Items]            
Percentage     30.00%   27.00%  
Asia and Pacific | Geographic Concentration Risk | Lease Rental Revenue            
Concentration Risk [Line Items]            
Percentage 29.00% 26.00% 28.00% 27.00%    
Europe            
Concentration Risk [Line Items]            
Number of Aircraft 69   69   79  
Europe | Geographic Concentration Risk | Net Book Value            
Concentration Risk [Line Items]            
Percentage     21.00%   23.00%  
Europe | Geographic Concentration Risk | Lease Rental Revenue            
Concentration Risk [Line Items]            
Percentage 25.00% 27.00% 25.00% 28.00%    
Middle East and Africa            
Concentration Risk [Line Items]            
Number of Aircraft 14   14   14  
Middle East and Africa | Geographic Concentration Risk | Net Book Value            
Concentration Risk [Line Items]            
Percentage     5.00%   5.00%  
Middle East and Africa | Geographic Concentration Risk | Lease Rental Revenue            
Concentration Risk [Line Items]            
Percentage 5.00% 5.00% 5.00% 5.00%    
North America            
Concentration Risk [Line Items]            
Number of Aircraft 66   66   72  
North America | Geographic Concentration Risk | Net Book Value            
Concentration Risk [Line Items]            
Percentage     30.00%   30.00%  
North America | Geographic Concentration Risk | Lease Rental Revenue            
Concentration Risk [Line Items]            
Percentage 30.00% 30.00% 31.00% 29.00%    
South America            
Concentration Risk [Line Items]            
Number of Aircraft 32   32   36  
South America | Geographic Concentration Risk | Net Book Value            
Concentration Risk [Line Items]            
Percentage     11.00%   12.00%  
South America | Geographic Concentration Risk | Lease Rental Revenue            
Concentration Risk [Line Items]            
Percentage 11.00% 12.00% 11.00% 11.00%    
Off Lease            
Concentration Risk [Line Items]            
Number of off-lease aircraft marketed for lease 11   11      
Number of off-lease aircraft marketed for lease or sale         6  
Off Lease | Geographic Concentration Risk | Net Book Value            
Concentration Risk [Line Items]            
Percentage     3.00%   3.00%  
United States            
Concentration Risk [Line Items]            
Net Book Value | $ $ 1,406,992   $ 1,406,992   $ 1,516,062  
Net Book Value %     17.00%   18.00%  
Number of Lessees | Lessee     5   8  
Gain on sale or disposition of flight equipment | $ $ 22,700   $ 22,600      
United States | Geographic Concentration Risk | Total Revenue            
Concentration Risk [Line Items]            
Percentage 22.00%   19.00%      
India            
Concentration Risk [Line Items]            
Net Book Value | $ $ 1,338,434   $ 1,338,434   $ 1,161,997  
Net Book Value %     16.00%   14.00%  
Number of Lessees | Lessee     3   4  
India | Geographic Concentration Risk | Total Revenue            
Concentration Risk [Line Items]            
Percentage 10.00%   11.00%      
Middle East | Geographic Concentration Risk | Net Book Value            
Concentration Risk [Line Items]            
Percentage     5.00%