v3.25.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Disaggregation of Revenue [Line Items]        
Revenue $ 24,855 $ 181 $ 50,338 $ 229
Aircraft sales        
Disaggregation of Revenue [Line Items]        
Revenue 24,500 0 49,600 0
Subscription        
Disaggregation of Revenue [Line Items]        
Revenue $ 355 $ 181 $ 738 $ 229