Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting (Details)

v3.4.0.3
Segment Reporting (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2015
USD ($)
Segment Reporting Information [Line Items]      
External revenues $ 229,549 $ 205,918  
Depreciation and amortization 9,668 8,684  
Allocated Share Based Compensation Expense 1,952 1,786  
Interest expense 553 364  
Income tax expense (benefit) 7,724 3,000  
Net income (loss) 13,099 4,837  
Operating Income (Loss) 21,405 8,249  
Total assets 689,053 715,128 $ 699,932
Capital expenditures $ 2,688 $ 5,229  
Number of reportable segments 4 3  
Expedited LTL [Member]      
Segment Reporting Information [Line Items]      
External revenues $ 133,522 $ 121,477  
Intersegment revenues 855 807  
Depreciation and amortization 5,548 4,576  
Allocated Share Based Compensation Expense 1,574 1,548  
Interest expense 509 112  
Net income (loss) 17,179 14,885  
Total assets 635,283 682,247  
Capital expenditures 2,078 2,694  
Truckload Expedited [Member]      
Segment Reporting Information [Line Items]      
External revenues 38,417 34,266  
Intersegment revenues 205 217  
Depreciation and amortization 1,740 1,373  
Allocated Share Based Compensation Expense 155 169  
Net income (loss) 1,470 3,211  
Total assets 90,678 86,565  
Capital expenditures 13 2,242  
Pool Distribution [Member]      
Segment Reporting Information [Line Items]      
External revenues 33,057 27,045  
Intersegment revenues 135 183  
Depreciation and amortization 1,485 1,539  
Allocated Share Based Compensation Expense 150 32  
Net income (loss) 114 216  
Total assets 47,877 44,439  
Capital expenditures 545 190  
Intermodal [Member]      
Segment Reporting Information [Line Items]      
External revenues 24,553 22,963  
Intersegment revenues 71 66  
Depreciation and amortization 895 969  
Allocated Share Based Compensation Expense 73 37  
Interest expense 36 23  
Net income (loss) 2,372 1,989  
Total assets 120,251 108,309  
Capital expenditures 52 103  
Elimination [Member]      
Segment Reporting Information [Line Items]      
External revenues   167  
Intersegment revenues (1,266) (1,273)  
Depreciation and amortization   227  
Interest expense 8 229  
Net income (loss) 270 (12,052)  
Total assets $ (205,036) $ (206,432)