Quarterly report pursuant to Section 13 or 15(d)

Business Segments and Customer Information - Segment Information (Details)

v3.21.1
Business Segments and Customer Information - Segment Information (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
USD ($)
segment
Mar. 31, 2020
USD ($)
Segment Reporting [Abstract]    
Number of reportable operating segments | segment 3  
Segment Reporting Information [Line Items]    
Revenues $ 164,981 $ 177,418
Operating income (loss) 9,603 9,734
Aviation    
Segment Reporting Information [Line Items]    
Revenues 44,371 58,080
Fleet    
Segment Reporting Information [Line Items]    
Revenues 54,747 53,204
Federal and Defense    
Segment Reporting Information [Line Items]    
Revenues 65,863 66,134
Operating Segments | Aviation    
Segment Reporting Information [Line Items]    
Revenues 44,371 58,080
Operating income (loss) (332) (1,880)
Operating Segments | Fleet    
Segment Reporting Information [Line Items]    
Revenues 54,747 53,204
Operating income (loss) 5,741 6,906
Operating Segments | Federal and Defense    
Segment Reporting Information [Line Items]    
Revenues 65,863 66,134
Operating income (loss) 5,025 4,924
Corporate/unallocated expenses    
Segment Reporting Information [Line Items]    
Operating income (loss) $ (831) $ (216)