Annual report pursuant to Section 13 and 15(d)

Business Segments and Customer Information - Segment Information (Details)

v3.22.0.1
Business Segments and Customer Information - Segment Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Line Items]      
Revenues $ 750,853 $ 661,659 $ 752,627
Operating income 21,520 13,923 60,257
Total assets 918,558 780,081  
Aviation      
Segment Reporting Information [Line Items]      
Revenues 247,852 165,070 224,546
Fleet      
Segment Reporting Information [Line Items]      
Revenues 233,532 242,170 214,520
Federal and Defense      
Segment Reporting Information [Line Items]      
Revenues 269,469 254,419 313,561
Operating Segments      
Segment Reporting Information [Line Items]      
Revenues 750,853 661,659 752,627
Operating income 21,520 13,923 60,257
Depreciation and amortization 25,600 24,135 26,927
Capital expenditures 10,520 4,427 9,660
Total assets 918,558 780,081  
Operating Segments | Aviation      
Segment Reporting Information [Line Items]      
Revenues 247,852 165,070 224,546
Operating income (14,373) (35,513) 17,901
Depreciation and amortization 11,374 10,874 12,546
Capital expenditures 7,468 3,445 8,396
Total assets 580,156 478,861  
Operating Segments | Fleet      
Segment Reporting Information [Line Items]      
Revenues 233,532 242,170 214,520
Operating income 20,426 26,659 29,819
Depreciation and amortization 9,679 10,260 11,085
Capital expenditures 1,669 675 1,076
Total assets 182,089 161,088  
Operating Segments | Federal and Defense      
Segment Reporting Information [Line Items]      
Revenues 269,469 254,419 313,561
Operating income 19,897 26,309 18,144
Depreciation and amortization 4,547 3,001 3,296
Capital expenditures 124 148 58
Total assets 92,571 66,808  
Operating Segments | Corporate      
Segment Reporting Information [Line Items]      
Total assets 63,742 73,324  
Corporate, Non-Segment      
Segment Reporting Information [Line Items]      
Operating income (4,430) (3,532) (5,607)
Capital expenditures $ 1,259 $ 159 $ 130