Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting (Details)

v3.19.1
Segment Reporting (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Dec. 31, 2018
USD ($)
Segment Reporting Information [Line Items]      
External revenues $ 321,471 $ 302,608  
Depreciation 8,316 8,381  
Amortization 2,511 2,309  
Share-based compensation expense 3,047 2,261  
Interest expense 575 371  
Operating Income (Loss) 24,734 24,235  
Total assets 885,577 690,207 $ 760,215
Capital expenditures $ 4,090 6,221  
Number of reportable segments 4    
Expedited LTL [Member]      
Segment Reporting Information [Line Items]      
External revenues $ 177,355 168,363  
Intersegment revenues 1,198 1,581  
Depreciation 4,968 4,623  
Amortization 825 905  
Share-based compensation expense 2,021 1,675  
Operating Income (Loss) 19,547 20,773  
Total assets 566,887 442,802  
Capital expenditures 2,081 6,058  
Intermodal [Member]      
Segment Reporting Information [Line Items]      
External revenues 54,097 48,477  
Intersegment revenues 18 91  
Depreciation 469 509  
Amortization 1,407 1,092  
Share-based compensation expense 531 290  
Interest expense 13 13  
Operating Income (Loss) 6,181 3,469  
Total assets 182,489 150,321  
Capital expenditures 73 81  
Truckload Expedited [Member]      
Segment Reporting Information [Line Items]      
External revenues 44,923 43,161  
Intersegment revenues 744 2,933  
Depreciation 1,564 1,703  
Amortization 22 55  
Share-based compensation expense 148 180  
Interest expense 1 1  
Operating Income (Loss) 841 (43)  
Total assets 74,638 65,263  
Capital expenditures 156 4  
Pool Distribution [Member]      
Segment Reporting Information [Line Items]      
External revenues 45,096 42,607  
Intersegment revenues 89 64  
Depreciation 1,315 1,546  
Amortization 257 257  
Share-based compensation expense 182 116  
Operating Income (Loss) 1,251 1,371  
Total assets 102,678 57,324  
Capital expenditures 1,780 78  
Elimination [Member]      
Segment Reporting Information [Line Items]      
Intersegment revenues (2,049) (4,669)  
Share-based compensation expense 165    
Interest expense 561 357  
Operating Income (Loss) (3,086) (1,335)  
Total assets $ (41,115) $ (25,503)