Annual report pursuant to Section 13 and 15(d)

Business Segments and Customer Information (Details)

v3.20.1
Business Segments and Customer Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Segment Reporting Information [Line Items]                      
Revenues $ 195,271 $ 198,326 $ 189,111 $ 169,919 $ 180,996 $ 168,931 $ 170,394 $ 176,897 $ 752,627 $ 697,218 $ 760,113
Operating income 14,813 $ 17,215 $ 16,416 $ 11,813 13,085 $ 15,697 $ 13,855 $ 11,593 60,257 54,230 54,325
Total assets 845,864       638,828       845,864 638,828  
Supply Chain Management                      
Segment Reporting Information [Line Items]                      
Revenues                 214,520 214,809  
Aviation                      
Segment Reporting Information [Line Items]                      
Revenues                 224,546 145,423  
Federal Services Group                      
Segment Reporting Information [Line Items]                      
Revenues                 313,561 336,986  
Operating Segments                      
Segment Reporting Information [Line Items]                      
Revenues                 752,627 697,218 760,113
Operating income                 60,257 54,230 54,325
Depreciation and amortization                 26,927 25,224 25,882
Capital expenditures                 9,660 3,117 3,313
Total assets 845,864       638,828       845,864 638,828  
Operating Segments | Supply Chain Management                      
Segment Reporting Information [Line Items]                      
Revenues                 214,520 214,809 214,542
Operating income                 29,819 30,626 33,754
Depreciation and amortization                 11,085 7,299 6,536
Capital expenditures                 1,076 802 1,376
Total assets 170,142       166,015       170,142 166,015  
Operating Segments | Aviation                      
Segment Reporting Information [Line Items]                      
Revenues                 224,546 145,423 134,809
Operating income                 17,901 11,076 9,695
Depreciation and amortization                 12,546 5,123 4,835
Capital expenditures                 8,396 1,772 1,387
Total assets 522,446       316,197       522,446 316,197  
Operating Segments | Federal Services Group                      
Segment Reporting Information [Line Items]                      
Revenues                 313,561 336,986 410,762
Operating income                 18,144 15,797 13,419
Depreciation and amortization                 3,296 12,802 14,511
Capital expenditures                 58 209 177
Total assets 88,966       92,098       88,966 92,098  
Operating Segments | Corporate                      
Segment Reporting Information [Line Items]                      
Total assets $ 64,310       $ 64,518       64,310 64,518  
Corporate, Non-Segment                      
Segment Reporting Information [Line Items]                      
Operating income                 (5,607) (3,269) (2,543)
Capital expenditures                 $ 130 $ 334 $ 373