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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Accounting Policies [Line Items]          
Provision for doubtful accounts $ 54,700   $ 54,700   $ 16,000
Bad debt expense 0 $ 1,500 47,100 $ 800  
Purchase deposits     28,621 $ 13,790  
Operating lease, ROU asset 3,200   3,200   2,300
Amortization of lease incentives     $ 7,500    
Aircraft          
Accounting Policies [Line Items]          
Property, plant and equipment, useful life     25 years    
Maximum percentage of manufacturer's list price     15.00%    
Aircraft Engines | Minimum          
Accounting Policies [Line Items]          
Property, plant and equipment, useful life     2 years    
Aircraft Engines | Maximum          
Accounting Policies [Line Items]          
Property, plant and equipment, useful life     6 years    
Aviation Tooling and Equipment | Minimum          
Accounting Policies [Line Items]          
Property, plant and equipment, useful life     3 years    
Aviation Tooling and Equipment | Maximum          
Accounting Policies [Line Items]          
Property, plant and equipment, useful life     6 years    
Furniture and fixtures | Minimum          
Accounting Policies [Line Items]          
Property, plant and equipment, useful life     3 years    
Furniture and fixtures | Maximum          
Accounting Policies [Line Items]          
Property, plant and equipment, useful life     6 years    
Other Assets          
Accounting Policies [Line Items]          
Capitalized costs, potential asset acquisitions 35,500   $ 35,500   46,200
Purchase deposits     28,600   13,700
Prepaid expense 700   700   3,100
Notes receivable 56,000   56,000   22,900
Maintenance right assets $ 12,400   $ 12,400   $ 5,100
Customer One | Customer Concentration Risk | Sales Revenue, Segment          
Accounting Policies [Line Items]          
Concentration risk   14.00%   14.00%  
Customer One | Customer Concentration Risk | Accounts Receivable          
Accounting Policies [Line Items]          
Concentration risk     32.00%   52.00%
Customer Two | Customer Concentration Risk | Accounts Receivable          
Accounting Policies [Line Items]          
Concentration risk     14.00%   19.00%