v3.26.1
FINANCING ARRANGEMENTS - Narrative (Details)
$ in Thousands, $ in Millions
12 Months Ended
Dec. 18, 2025
USD ($)
term
Dec. 17, 2025
AUD ($)
increment
Dec. 15, 2025
AUD ($)
investors
Nov. 24, 2025
USD ($)
shares
Sep. 03, 2025
USD ($)
May 30, 2025
USD ($)
investors
shares
May 15, 2025
USD ($)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
AUD ($)
Dec. 15, 2025
USD ($)
Dec. 15, 2025
AUD ($)
May 31, 2025
May 30, 2024
USD ($)
Debt Instrument                              
Line of credit maximum borrowing capacity                             $ 4,600
Repayment of term loan               $ 135,527 $ 131,376            
Long-term debt gross               $ 210,553 $ 110,704            
Weighted average interest rate (as a percentage)               3.50% 7.68%            
Cash paid during the period for interest               $ 8,500 $ 8,400            
ATA 25.1 | Contingent Payment Agreement                              
Debt Instrument                              
Maximum contingent payment amount     $ 8.0                        
Contingent payment, percentage of gross revenue                       0.50% 0.50%    
Maximum annual contingent payment amount                         $ 2.0    
Contingent payment payable, outstanding balance               1,300              
Term Loan C                              
Debt Instrument                              
Interest rate stated percentage (as a percentage)             5.00%                
AAM 24-1 Third NPA with Institutional Investors                              
Debt Instrument                              
Number of institutional investors | investors           2                  
Term Loan - Commonwealth | Rex Debt                              
Debt Instrument                              
Interest rate stated percentage (as a percentage) 2.00%                            
Liabilities assumed, debt                   $ 71,200 $ 107.8        
Long-term debt gross $ 22,200                            
Debt, weighted average interest rate   15.00%                          
Debt instrument, term extension 20 years                            
Term Loan - Commonwealth | Rex Debt | Maximum                              
Debt Instrument                              
Debt instrument, term 30 years                            
Debt instrument, term extension 10 years                            
Debt instrument, number of extension terms | increment   10                          
Term Loan - Commonwealth | Rex Debt | Minimum                              
Debt Instrument                              
Debt instrument, number of extension terms | term 2                            
Regional Express Holdings Limited (REX)                              
Debt Instrument                              
Interest rate stated percentage (as a percentage)   2.00%                          
Debt instrument, issued, principal   $ 5.0                          
Regional Express Holdings Limited (REX) | Maximum                              
Debt Instrument                              
Interest rate stated percentage (as a percentage)   12.00%                          
Commercial Jet Engines Parts | Rex Debt                              
Debt Instrument                              
Long-term debt gross   $ 40.0                          
Debt instrument, term extension   3 years                          
Business Operations Facility | Rex Debt                              
Debt Instrument                              
Long-term debt gross   $ 20.0                          
Debt instrument, term extension   2 years                          
Air T Acquisition 25.1, LLC With Institutional Investors                              
Debt Instrument                              
Number of institutional investors | investors     2                        
Unsecured Debt | Term Loan A | Alerus Loan Parties                              
Debt Instrument                              
Line of credit maximum borrowing capacity         $ 9,200                    
Basis spread on variable rate (as a percentage)         2.00%                    
Notes payable | ATA 25.1                              
Debt Instrument                              
Long-term debt gross               41,271 0            
Notes payable | Rex Debt                              
Debt Instrument                              
Long-term debt gross               $ 23,842 0            
Notes payable | Term Loan - Commonwealth | Rex Debt                              
Debt Instrument                              
Interest rate stated percentage (as a percentage)               0.00%              
Long-term debt gross               $ 23,842 $ 0            
Notes payable | Term Loan - Commonwealth | CFA Debt                              
Debt Instrument                              
Long-term debt gross               $ 23,800              
Revolving Credit Facility | Term Loan C                              
Debt Instrument                              
Basis spread on variable rate (as a percentage)             2.25%                
Revolving Credit Facility | Air T Acquisition 22.1                              
Debt Instrument                              
Maximum debt service leverage ratio               1.50              
Minimum debt service coverage ratio               1.10              
Revolving Credit Facility | Line of credit                              
Debt Instrument                              
Line of credit maximum borrowing capacity         $ 20,000                    
Interest rate stated percentage (as a percentage)         5.00%                    
Basis spread on variable rate (as a percentage)         1.90%                    
Revolving Credit Facility | Line of credit | New Credit Agreement                              
Debt Instrument                              
Minimum debt service coverage ratio               125.00%              
Maximum debt service leverage ratio                 3.00            
Revolving Credit Facility | Line of credit | Master Loan Agreement                              
Debt Instrument                              
Line of credit maximum borrowing capacity       $ 15,000                      
Basis spread on variable rate (as a percentage)       3.11%                      
Quarterly cash flow coverage ratio       1.25                      
Debt instrument default amount       $ 15,000                      
Revolving Credit Facility | Line of credit | Master Loan Agreement | Maximum                              
Debt Instrument                              
Minimum debt service coverage ratio       125.00%                      
Revolving Credit Facility | Line of credit | Master Loan Agreement | Minimum                              
Debt Instrument                              
Minimum debt service coverage ratio       100.00%                      
Revolving Credit Facility | Line of credit | Master Loan Agreement, Guaranteed By Promissory Note                              
Debt Instrument                              
Line of credit maximum borrowing capacity       $ 2,000                      
Revolving Credit Facility | Unsecured Debt                              
Debt Instrument                              
Long-term debt gross               $ 19,765 $ 15,877            
Revolving Credit Facility | Unsecured Debt | Term Note A - Alerus | Alerus Loan Parties                              
Debt Instrument                              
Basis spread on variable rate (as a percentage)               2.00%              
Long-term debt gross               $ 8,295 $ 9,827            
Secured debt | Line of credit                              
Debt Instrument                              
Line of credit maximum borrowing capacity             $ 1,100                
Secured debt | Line of credit | Bank Of American Term Loan                              
Debt Instrument                              
Quarterly cash flow coverage ratio               1.25              
Secured debt | Line of credit | AAM 24-1 Third NPA with Institutional Investors                              
Debt Instrument                              
Line of credit maximum borrowing capacity           $ 100,000                  
Interest rate stated percentage (as a percentage)           8.50%                  
Line of credit facility, current borrowing capacity           $ 10,000                  
Line of credit facility, remaining borrowing capacity           $ 40,000                  
Debt instrument, term           6 years                  
Prepayment period           1 year                  
Prepayment premium (as a percent)           2.00%               1.00%  
Prepayment of debt           $ 1,000                  
Own-share lending arrangement, shares, issued (in shares) | shares           320,000                  
Secured debt | Line of credit | Air T Acquisition 22.1 Term Loan                              
Debt Instrument                              
Line of credit maximum borrowing capacity       $ 6,000                      
Interest rate stated percentage (as a percentage)       5.00%                      
Basis spread on variable rate (as a percentage)       1.90%                      
Own-share lending arrangement, shares, issued (in shares) | shares       200,000                      
Repayment of term loan       $ 3,500                      
Secured debt | Line of credit | Senior Secured Note Due December, 2031 (Investor Note) | ATA 25.1                              
Debt Instrument                              
Line of credit maximum borrowing capacity                       $ 40,000      
Interest rate stated percentage (as a percentage)                       11.50% 11.50%    
Secured debt | Line of credit | New Cap Note Due December, 2030 | ATA 25.1                              
Debt Instrument                              
Interest rate stated percentage (as a percentage)                       12.00% 12.00%    
Line of credit facility, current borrowing capacity                         $ 50.0    
Secured debt | Line of credit | ATA 25.1                              
Debt Instrument                              
Interest rate stated percentage (as a percentage)                       25.00% 25.00%    
Unsecured Debt | Line of credit | New Cap Note Due December, 2030 | ATA 25.1                              
Debt Instrument                              
Line of credit facility, current borrowing capacity                         $ 10.0