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) |