v3.26.1
Summary of Significant Accounting Policies - Property and Equipment (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
jet
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
jet
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Property, Plant, and Equipment [Line Items]          
Property, plant and equipment, net $ 42,756   $ 42,756   $ 48,200
Depreciation expense 2,392 $ 6,198 4,849 $ 12,525  
Gain (loss) on disposal of fixed assets $ 633 $ 512 $ 633 $ 516  
Air Wisconsin          
Property, Plant, and Equipment [Line Items]          
Number of CRJ-200 regional jets owned | jet 61   61    
Construction in Progress          
Property, Plant, and Equipment [Line Items]          
Property, plant and equipment, net $ 3,967   $ 3,967   $ 3,980