Quarterly report pursuant to Section 13 or 15(d)

Business Segments and Customer Information - Segment Information (Details)

v3.19.3
Business Segments and Customer Information - Segment Information (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
segment
Sep. 30, 2018
USD ($)
Segment Reporting [Abstract]        
Number of reportable operating segments | segment     3  
Segment Reporting Information [Line Items]        
Revenues $ 198,326 $ 168,931 $ 557,356 $ 516,222
Operating income 17,215 15,697 45,444 41,145
Supply Chain Management Group        
Segment Reporting Information [Line Items]        
Revenues 55,369 51,834 160,878 161,961
Aviation Group        
Segment Reporting Information [Line Items]        
Revenues 59,186 34,000 163,553 102,554
Federal Services        
Segment Reporting Information [Line Items]        
Revenues 83,771 83,097 232,925 251,707
Operating Segments | Supply Chain Management Group        
Segment Reporting Information [Line Items]        
Revenues 55,369 51,834 160,878 161,961
Operating income 7,843 7,783 22,388 23,547
Operating Segments | Aviation Group        
Segment Reporting Information [Line Items]        
Revenues 59,186 34,000 163,553 102,554
Operating income 6,568 2,184 14,820 7,291
Operating Segments | Federal Services        
Segment Reporting Information [Line Items]        
Revenues 83,771 83,097 232,925 251,707
Operating income 4,524 6,186 12,968 12,270
Corporate/unallocated expenses        
Segment Reporting Information [Line Items]        
Operating income $ (1,720) $ (456) $ (4,732) $ (1,963)