Consolidated Statements of Operations (Unaudited) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
|
| Income Statement [Abstract] | ||||
| Revenue | $ 470,085,693 | $ 443,829,924 | $ 885,837,967 | $ 849,107,456 |
| Costs and expenses: | ||||
| Transportation costs | 388,472,528 | 358,652,347 | 729,726,541 | 683,103,064 |
| Selling, general and administrative expenses | 70,198,648 | 70,532,891 | 137,435,970 | 140,009,379 |
| Depreciation and amortization | 7,976,014 | 7,598,376 | 16,014,273 | 15,127,709 |
| Income from operations | 3,438,503 | 7,046,310 | 2,661,183 | 10,867,304 |
| Interest expense | (3,677,385) | (3,524,166) | (7,301,521) | (7,027,561) |
| (Loss) Income before provision for income taxes | (238,882) | 3,522,144 | (4,640,338) | 3,839,743 |
| Income tax (expense) benefit | (6,484) | (1,591,375) | 1,522,929 | (1,646,363) |
| Net (loss) income | $ (245,366) | $ 1,930,769 | $ (3,117,409) | $ 2,193,380 |
| (Loss) Earnings per common share: | ||||
| Basic (in usd per share) | $ (0.01) | $ 0.07 | $ (0.11) | $ 0.08 |
| Diluted (in usd per share) | $ (0.01) | $ 0.07 | $ (0.11) | $ 0.07 |