Annual report pursuant to Section 13 and 15(d)

Business Segments and Customer Information - Segment Information (Details)

v3.24.0.1
Business Segments and Customer Information - Segment Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Segment Reporting Information [Line Items]      
Revenues: $ 860,488 $ 669,448 $ 481,384
Operating income (loss): 87,996 53,604 (2,705)
Depreciation and amortization expense: 21,380 21,957 21,053
Assets held-for-sale 93,002 110,939  
Total assets 1,350,338 999,789  
Aviation      
Segment Reporting Information [Line Items]      
Revenues: 544,020 408,112 247,852
Depreciation and amortization expense: 16,080 13,174 11,374
Fleet      
Segment Reporting Information [Line Items]      
Revenues: 316,468 261,336 233,532
Depreciation and amortization expense: 5,300 8,783 9,679
Operating Segments      
Segment Reporting Information [Line Items]      
Operating income (loss): 87,996 53,604 (2,705)
Capital expenditures: 18,934 12,324 9,980
Total assets 1,350,338 999,789  
Operating Segments | Aviation      
Segment Reporting Information [Line Items]      
Operating income (loss): 71,168 36,416 (14,373)
Capital expenditures: 16,467 5,961 7,468
Total assets 950,143 637,615  
Operating Segments | Fleet      
Segment Reporting Information [Line Items]      
Operating income (loss): 31,257 23,911 20,426
Capital expenditures: 2,198 5,502 1,669
Total assets 274,382 218,138  
Operating Segments | Corporate      
Segment Reporting Information [Line Items]      
Total assets 32,811 33,097  
Corporate/unallocated expenses      
Segment Reporting Information [Line Items]      
Operating income (loss): (14,429) (6,723) (8,758)
Corporate      
Segment Reporting Information [Line Items]      
Capital expenditures: $ 269 $ 861 $ 843