Annual report pursuant to Section 13 and 15(d)

Segment Reporting (Details)

v3.6.0.2
Segment Reporting (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
USD ($)
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
Jun. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Segment Reporting Information [Line Items]                      
Number of principal reporting segments                 4 3  
External revenues $ 264,793 $ 249,552 $ 238,637 $ 229,548 $ 256,420 $ 247,093 $ 249,694 $ 205,918 $ 982,530 $ 959,125 $ 780,959
Depreciation and amortization                 38,210 37,157 31,133
Other Noncash Income                 8,334 7,486 6,681
Goodwill and Intangible Asset Impairment                 42,442 0 0
Interest expense                 1,597 2,047 610
Income tax expense (benefit)                 30,716 24,092 34,916
Net income (loss) 12,706 11,931 (10,066) 13,099 23,228 15,687 11,824 4,836 27,670 55,575 61,169
Operating Income (Loss) 28,223 $ 24,700 $ (14,348) $ 21,404 29,015 $ 24,601 $ 19,908 $ 8,248 59,979 81,772 96,406
Total assets 641,291       699,932       641,291 699,932 539,309
Additions to Other Assets, Amount                 42,186 40,495 39,487
Expedited LTL [Member]                      
Segment Reporting Information [Line Items]                      
External revenues                 567,711 573,476 456,230
Revenue from Related Parties                 3,067 3,550 2,673
Depreciation and amortization                 21,919 21,125 16,580
Other Noncash Income                 7,209 6,088 5,561
Interest expense                 1,687 1,959 523
Operating Income (Loss)                 83,518 79,193 75,754
Total assets 632,698       641,360       632,698 641,360 494,522
Additions to Other Assets, Amount                 37,501 29,995 25,764
Truckload Premium Services [Member]                      
Segment Reporting Information [Line Items]                      
External revenues                 163,254 152,251 131,478
Revenue from Related Parties                 1,018 1,080 1,788
Depreciation and amortization                 6,441 6,206 5,405
Other Noncash Income                 332 840 717
Goodwill and Intangible Asset Impairment                 42,442    
Interest expense                 3 5 6
Operating Income (Loss)                 (35,405) 13,288 8,986
Total assets 53,695       89,312       53,695 89,312 88,789
Additions to Other Assets, Amount                 1,828 5,972 6,184
Pool Distribution [Member]                      
Segment Reporting Information [Line Items]                      
External revenues                 148,054 128,826 117,429
Revenue from Related Parties                 607 1,169 831
Depreciation and amortization                 5,975 6,003 5,754
Other Noncash Income                 334 300 259
Interest expense                     2
Operating Income (Loss)                 3,633 3,820 4,543
Total assets 50,271       46,970       50,271 46,970 45,428
Additions to Other Assets, Amount                 2,637 3,983 7,133
Intermodal [Member]                      
Segment Reporting Information [Line Items]                      
External revenues                 103,511 103,977 75,822
Revenue from Related Parties                 160 315 123
Depreciation and amortization                 3,876 3,773 3,365
Other Noncash Income                 459 258 144
Interest expense                 83 83 79
Operating Income (Loss)                 10,956 11,949 7,428
Total assets 129,714       118,081       129,714 118,081 110,055
Additions to Other Assets, Amount                 220 545 406
Business Intersegment, Eliminations [Member]                      
Segment Reporting Information [Line Items]                      
External revenues                   595  
Revenue from Related Parties                 (4,852) (6,114) (5,415)
Depreciation and amortization                 (1) 50 29
Interest expense                 (176)    
Operating Income (Loss)                 (2,723) (26,478) (305)
Total assets $ (225,087)       $ (195,791)       $ (225,087) $ (195,791) $ (199,485)